Littelfuse® World's Leading Provider Circuit Protection Solutions
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POWR-GARDPRODUCTS CATALOG
Littelfuse®
World's Leading Provider Circuit Protection Solutions
Exceptional Portfolio Littelfuse committed providing every customers with right solutions meet your circuit protection needs. Makes Difference That carry broadest range technologies available When work with Littelfuse, working with broadest market today. deepest circuit protection portfolio available. leverage breadth offering, combined with depth product different technologies, giving access unparalleled application expertise, gives freedom provide selection helping find right solution your application. objective, comprehensive solutions meet specific needs Fuses, Holders Accessories each application. This allows true partnership with customers. PTCs
GDTs
Industries Serve
SIDACtors® Solutions from Littelfuse found virtually every Varistors that uses electrical energy, including: Diodes Automotive applications Polymer devices Digital consumer electronics Industrial/Electrical applications Telecom/Datacom circuits
Commitment Circuit Protection
over years Littelfuse maintained focus circuit protection. expand global reach technical sophistication, continue count solid circuit protection solutions, innovative technologies, industry-leading expertise. commitment that only world-class leader with staying power support.
2005 Littelfuse POWR-GARDProducts Catalog
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POWR-PRO® Fuses
Contents
POWR-PRO® Fuses
Indicator Introduction Global ProIntroduction MROplusPOWR-PRO Introduction KLPC LLSRK_ID LLNRK, LLSRK JTD_ID CCMR IDSR
8-10 11-13 14-16 17-19 20-21 23-24
Special Purpose Fuses
Semiconductor Fuses Fork-Lift Fuses Cable Limiters LMF, LGR,
84-106
Blocks Holders
Class H/K5 Class Class Class Class Midget Class Midget Accessories POWR-SAFE Fuseholders POWR-Covers Pullers, POWR-JAW Fuseholder LFFB Limiter Block LHFB Inline Holder Semiconductor Blocks POWR-BLOKSDistribution/Splicer Dimensions In-Line Watertight Fuseholders
111-116 117-119 120-123 125-126 128-129 134-136 137-141 142-144 145-150
General Purpose Fuses
KLLU FLNR_ID/FLSR_ID FLNR/FLSR KLNR/KLSR NLN/NLS RLN/RLS JLLN/JLLS CCMR, KLDR, KLKR Plug Fuses
26-28 29-32 34-35 36-37 39-40 41-43 45-47
Miscellaneous Products Midget Electronic Fuses
Midget Fuses Electronic Fuses 3AG/3AB Indicating 5x20 Type 5x20 Subminiature Automotive Fuses Blade Type Bolt-on Type Miscellaneous Types
152-155 158-159
50-54 POWR-Switch LPMP Panel Disconnect Switches Fuse Reducers Covers Fuse Cabinet, Display
International Products
Global Fuses Global Fuseholders Fuse Links Diazed/Neozed Fuse Cylindrical Fuses British Dimension
164-165 166-167
Medium Voltage Fuses
Medium Voltage Fuses
64-75
Overvoltage Suppression Products
Introduction Industrial Varistor Products LVSP
171-172
Telecom Products
L17T Series Series LTFD LTFD 6001 LTFD 1200
Fuseology
Terms Definitions Electrical Safety Fuse Application Guide Motor Protection Tables Condensed Cross Reference Alphanumeric Index
177-181 182-183 184-203 204-206
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POWR-PRO® Fuses
POWR-PRO® Fuses
Class
Fuse Overload Characteristics Time-Delay
Interrupting Rating, Amperes 200,000 300,000** 200,000 300,000** 200,000 200,000 300,000** 200,000 200,000/300,000** 200,000 200,000 300,000** 200,000 200,000/300,000** 100,000 50,000
Voltage Rating
Available Ampere Ratings 6000 4000 2000 1/10
Littelfuse Series Number KLPC** KLLU LDC* LLNRK** LLSRK** LLSRK_ID** KLNR KLSR FLNR/FLNR_ID** FLSR/FLSR_ID** IDSR**,* JLLN JLLS JTD/JTD_ID** KLDR CCMR** KLKR CCMR** SOO, SLO, Product Listings L17T
Page Number 8-10 26-28 23-24 14-16 14-16 11-13 34-35 29-32 29-32 41-43 17-19 39-40 45-47 20-21 45-47 20-21 36-37
1000
Time-Delay Fast-Acting
Time-Delay
1/10
Fast-Acting Time-Delay Fast-Acting Time-Delay Fast-Acting
1200 8/10 1/10 2/10 1/10 1/10 1/500 1-250 1200
Time-Delay Time-Lag "One-Time" Fuses Fast-Acting Renewable Fuses Fast-Acting Time-Delay Time-Delay Medium Time-Delay Midget Fuses Electronic Fuses Automotive Fuses Fast-Acting
10,000 10,000 10,000 Varies
50-54 55-59 60-62
Plug
Supplementary
Telecommunications
100,000
170VDC
IDSR rated volts AC/DC. Series Listed with I.R. 200,000 amps Littelfuse self-certified with 300,000A I.R.
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POWR-PRO® Fuses
Littelfuse Indicator® Fuses Littelfuse Global ProSystem Littelfuse MROplusLittelfuse POWR-PRO System KLPC Series POWR-PRO Class Fuses LLSRK_ID Series Indicator POWR-PRO Class Fuses LLNRK/LLSRK Series POWR-PRO Class Fuses JTD_ID Series Indicator POWR-PRO Class Fuses CCMR Series POWR-PRO Class Fuses IDSR Series Indicator POWR-PRO Class Fuses Series POWR-PRO Class Fuses
8-10 11-13 14-16 17-19 20-21 23-24
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POWR-PRO® Fuses
Littelfuse Indicator® Fuses
Complete Circuit Protection Plus Time Saving Indication.
POWR-PRO® Fuses Indicator fuses combat most common frustrating obstacles productivity: downtime. Every time fuse opens production stops, money wasted. Locating blown fuse used take minutes more. Blown Littelfuse Indicator fuses spotted quickly safely, while power turned off. couldn't easier locate blown fuse. Simply look Indicator window. When fuse blows, window turns from clear dark instantly, indicating which fuse needs replaced without headaches hassles. These technologically advanced fuses feature solid-state designs that improve overall performance increase fuse life. When properly applied, Indicator fuses provide superior protection improved timedelay over conventional fuse designs. patented solid-state overload section provides consistent reliable operation eliminating moving parts which subject fatigue. This provides longer fuse life eliminating needless fuse openings motor inrush currents. superior performance allows consolidate your inventories replacing older, conventional fuses which have limited performance characteristics.
Indicator fuses can: Reduce Downtime Reduce Nuisance Opening Reduce Fuse Inventory Reduce Equipment Damage Reduce Accidents Reduce Housekeeping Headaches
Indicator® Solution Software
This easy software analyzes your plant operations calculates areas cost savings when Indicator fuses. calculate your savings, call 1-800-TEC-FUSE free copy Indicator Solution software.
LLSRK_ID pages 11-13 Class Dual-Element, Time-Delay 1/10-600 Amperes FLNR_ID/FLSR_ID pages 29-32 Class 250/600 Dual-Element, Time-Delay 1/10-600 Amperes IDSR page Class AC/DC Dual-Element, Time-Delay 1/10-600 Amperes JTD_ID pages 17-19 Class Dual-Element, Time-Delay 8/10-600 Amperes 313_ID page Electronic 125/32 Slo-Blo® 1/2-10 Amperes Good
Blown
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POWR-PRO® Fuses
Littelfuse Global ProSystem
Introducing Global System
POWR-PRO® Fuses
Offering World Class Performance Global Acceptance
International Challenge
Engineers equipment designers faced with dilemma when choosing right circuit protection their globally distributed equipment. They need worry about which markets product will used what appropriate electrical standards apply each those markets, what fuses should used that users find replacements easily. These daunting questions particularly because some this information often available engineer when particular piece equipment being designed. Global system resolves these design issues incorporating North American standards internationally accepted fuse dimensions. This allows touchsafe fuseholders that used virtually market permits equipment easily adapted simply replacing fuse with that meets local standards. It's that simple. benefits Global system include:
Global Acceptance Total Protection
Littelfuse Global circuit protection system combines fuses, fuse holders fusible disconnect switches simple, integrated package designed comply with requirements. result single best solution your worldwide circuit protection needs. matter where your product used, Global will accepted. More significantly, it's easy too! meets universal voltage standards, offers universal fuse sizes uses universally understood product labels part numbers.
Flexible Components
components Global system vital revolutionary performance, component within system fuse. Littelfuse Global Fuse designed offer Class performance, with compact size international compatibility associated with fuses manufactured dimensions.
More Protection Less Space
Global acceptance approval Universal voltages Touch-safe components Integrated lockout/tagout device compliance Pin-indication Design versatility OEMs Littelfuse Global fuses significantly smaller size than amp, amp, Class fuses. their small size does limit their performance. Global fuses offer following: Extremely compact size Pop-up indication Performance Class fuse requirements Compatibility with style fuseholders
Note: more information refer pages 162-163 this catalog.
Good
Blown
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POWR-PRO® Fuses
Circuit Protection Simplified!
Littelfuse exclusive MROplus (Material Reduction Opportunity Plus) program designed help lower costs, reduce inventory improve circuit protection performance. team Littelfuse technical experts will analyze inventory generate variety detailed reports including: total cost savings report, cross reference report duplicate obsolete inventory report. average, customers Littelfuse MROplus program able reduce their inventory 28%. have supply list current inventory Littlefuse MROplus program will rest. And, best all, absolutely FREE! POWR-PRO® Fuses
vent omiz
Full olor
ntatio
Your ustom ized vento alysi
side
more information call 1-800-TEC-FUSE
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POWR-PRO® Fuses
Littelfuse POWR-PRO® System
Littelfuse POWR-PRO System fuses gives fuses need complete circuit protection coverage while reducing inventory controlling costs.
POWR-PRO® Fuses
POWR-PRO System will:
Provide superior current-limiting protection with innovative, tested designs prevent reduce electrical system damage. Reduce inventory standardizing system protection. Provide visual blown fuse indication with LLSRK_ID, JTD_ID Indicator® fuses. Reduce fuse replacement downtime with simple color coded fuse labels. yourself POWR-PRO System gives widest range circuit protection available today when compared other systems.
Minimize Arc-Flash Hazards
Some factors that determine severity Arc-Flash magnitude fault current time current allowed flow. Current-limiting fuses applied within their currentlimiting range minimize current flow clear fault 0.00833 seconds less. more current-limiting device faster clears fault minimizes Arc-Flash hazards potentially reduces amount personal protective equipment (PPE) required. Using Littelfuse POWR-PRO Fuses will only minimize Arc-Flash hazards with superior current limitation, also provide maximum protection equipment. quickest easiest ways reduce Arc-Flash hazards replace Class Class fuses with POWR-PRO currentlimiting Class Class fuses. given current voltage rating, Class RK5, fuses same physical size. Therefore, easy upgrade better fuse protection increased safety. insure that only most current-limiting fuse used, recommended change fuse clips rejection style Class Class fuses. Class fuses provides best option assuring non-interchangeability with non-current-limiting fuses. Whichever your choice, equipment should labeled inform maintenance personnel proper fuse replacement. Littelfuse MROplusProgram assist with analyzing upgrading from non-currentlimiting fuses.
Fuse Class Class Class Class Class
POWR-PRO® KLPC LLNRK/LLSRK_ID JTD/JTD_ID CCMR (2/10-60)
Peak KRPC LPNRK/LPSRK LPCC (1/2-30)
System 2000 A4BQ A2DR/A6DR ATDR (0-30)
COLOR COORDINATED EASE IDENTITY REPLACEMENT
Green label fuses provide inventory need for:
Superior current-limitation from 1/10 6000 amperes. Type Damage" coordination with NEMA motor circuits. Blown fuse indication (LLSRK_ID JTD_ID). Compact protection motor circuits (JTD, JTD_ID, CCMR). 300,000 meet future trends toward higher available short circuit currents.
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POWR-PRO® Fuses
KLPC Series POWR-PRO® Class Fuses
Time-Delay 6000 Amperes
current also current-limiting fastest Class fuse market. average, peak let-through currents KLPC series fuses less than other time-delay Class fuse.
POWR-PRO® Fuses
Applications
Service switches Switchboard mains feeders Bolted pressure contact switches Motor control center mains Large motor branch circuits Listed series-rated protection molded case circuit breaker panelboards loadcenters. (See panelboard manufacturers' literature recommended fuse rating.) Primary secondary protection transformers Protection power circuit breakers
Features Benefits
Eliminate unnecessary downtime KLPC POWR-PRO series timedelay withstands system surges keeps your circuits service. Best protection system components Maximum current limitation means less equipment system damage when short circuits occur. Reduced damage means that electrical service restored quickly, reducing costly downtime, often permitting equipment repair rather than replacement. Coordinates with other system components KLPC series fuses provide maximum coordination with fuses circuit breakers both line load side fuses. Fuseology section this catalog additional information. Eliminate need oversize fuses This permit smaller, less expensive switches. Since lower rated fuses more currentlimiting, equipment receives even better protection. 300kA Interrupting Rating Littelfuse self-certified 300,000 amperes standard. Meets future trend towards higher available short circuit currents.
KLPC series POWR-PRO fuses provide ideal overcurrent protection circuits from through 6000 amperes. KLPC series POWR-PRO fuses specification-grade construction performance meet exceed most stringent project specifications: 99.9% pure silver links, silverplated copper bells, glass-reinforced melamine bodies, O-ring seals between body bells, granular quartz fillers. KLPC series POWR-PRO fuses only listed Class fuses that provide minimum seconds time delay 500% rated
Specifications
Voltage Ratings: Interrupting Ratings: Volts Volts 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 20,000 amperes 6000 amperes Standard 248-10, Class Listed 6000 amps (File E81895) Recognized amps (File E71611) Certified 6000 amps (File LR29862) Federal Specifications WF-1814 6000 amps Littelfuse self-certified
Ampere Ratings
1000 1100 1200 1300 1350 1400 1500 1600 1800 1900 2000 2100 2200 2300 2500 3000 3500 4000 4500 5000 6000
Ampere Range: Approvals:
Example part number (series amperage): KLPC 1000
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POWR-PRO® Fuses
KLPC Series POWR-PRO® Class Fuses
Time-Delay 6000 Amperes
POWR-PRO® Fuses
FIG.1
FIG.2
FIG.
FIG.
FIG.
Amperes 1200 1201 1600 1601 2000 2001 2500 2501 3000 3001 4000 4001 5000 5001 6000
Fig.
(95.3) (95.3) (95.3) (95.3) (101.6) (101.6) (101.6) (101.6) (101.6)
(146.1) (146.1) (146.1) (146.1) (146.1) (146.1) (146.1) (146.1) (146.1)
(171.5)
(241.3) (241.3) (241.3) (241.3) (241.3) (241.3)
Dimensions Inches parentheses) (219.1) (273.1) (273.1) (273.1) (273.1) (273.1) (273.1) (273.1) (273.1)
(15.9) (28.6) (15.9) (28.6) (15.9) (28.6) 11/8 (15.9) (28.6) 11/8 (15.9) (28.6) (15.9) (34.9)
(41.3) (41.3) (44.5) (41.3) (41.3)
(44.5) (44.5) (82.6) (82.6) (82.6)
(50.8) (50.8) (60.3) (69.9) (88.9) (101.6) (120.7) (133.4) (146.1)
(63.5) (63.5) (76.2) (88.9) (127.0) (127.0) (146.1) (181.0) (181.0)
11/8
(9.5)
(15.9) (28.6)
(15.9) (19.1) (15.9) (19.1) (15.9) (19.1) (15.9) (19.1) (15.9) (19.1) (15.9) (34.9)
(171.5) (235.0) (171.5) (235.0) (171.5) (235.0) (171.5) (235.0) (171.5) (235.0) (171.5) (235.0) (235.0) (235.0)
(9.5)
(11.1)
(12.7)
(19.1)
(19.1)
(19.1) (25.4) (25.4)
DIA.
(15.9)
DIA.
(15.9)
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POWR-PRO® Fuses
KLPC Series POWR-PRO® Class Fuses
Time-Delay 6000 Amperes
POWR-PRO® Fuses
Current-Limiting Effects KLPC (600V) fuses
Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Current Various Fuse Ratings 800A 5,000 8,800 10,500 12,000 13,000 14,000 15,000 16,000 17,000 18,000 20,000 21,000 23,000 24,000 1200A 5,000 10,000 13,500 15,000 16,000 18,000 19,000 20,000 22,000 24,000 26,000 27,000 31,000 34,000 1600A 5,000 10,000 15,000 19,000 21,000 23,000 24,000 25,000 27,000 29,000 32,000 34,000 38,000 42,000 2000A 5,000 10,000 15,000 20,000 24,000 26,000 27,000 28,000 31,000 34,000 37,000 40,000 44,000 46,000 3000A 5,000 10,000 15,000 20,000 25,000 30,000 32,000 34,000 37,000 40,000 44,000 46,000 54,000 57,000 4000A 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 42,500 46,000 51,000 57,000 67,000 70,000 5000A 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 52,000 57,000 65,000 75,000 80,000 6000A 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 70,000 75,000 87,000 95,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data derived from Peak Let-Thru Curves
1200A
1000
1600A 2000A 2500A 3000A 3500A 4000A 5000A 6000A
800A
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000
600000 800000 1000000 60000 80000 100000 200000 300000 400000 6000 8000 10000 20000 30000 40000
6000A 5000A 4000A 3000A 2000A 1600A 1200A 800A
CURRENT AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
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200000
1000
2000
3000 4000
PEAK LET-THRU AMPERES
TIME SECONDS
POWR-PRO® Fuses
LLSRK_ID Series Indicator® POWR-PRO® Class Fuses
Dual-Element, Time-Delay 1/10 Amperes
Applications
POWR-PRO® Fuses general purpose circuits Motors Transformers Solenoids Fluorescent lighting system components with high in-rush currents
Features/Benefits
Reduce downtime indicating window LLSRK_ID immediately identifies open fuse. indicating strip black, fuse opened. It's that simple. Maintenance personnel immediately determine that there open fuse. Reduce fuse inventory superior performance LLSRK_ID allows used variety applications, thus decreasing fuse inventory. Reduce nuisance opening Indicator fuses offer superior time-delay cycling characteristics, which lengthen fuse life. Reduce equipment damage Indicator fuses provide superior overload short-circuit protection that reduce equipment damage. LLSRK_ID extremely current-limiting provides Type Damage" protection NEMA type motor starters. Reduce accidents LLSRK_ID Indicator fuse improves safety minimizing exposure live circuits. Unlike other forms blown fuse indication, once indicating strip darkens, stays dark. Other forms indication require power remain which causes potential safety hazard personnel.
LLSRK_ID series fuse most advanced Class fuse available today providing unparalleled performance protection modern circuits. patented Indicator technology provides instant identification blown fuse greatly enhancing system up-time, while precision formed short-circuit elements virtually eliminate damage components from unexpected electrical faults. addition, solid-state overload section moving parts, stopping unnecessary fatigue failures commonly found other spring loaded fuses.
Ordering Information
online ordering part number LSRK.
Specifications
Voltage Rating: Interrupting Ratings: VAC/300 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 20,000 amperes 1/10 amperes Standard 248-12, Class Listed (File E81895) Certified (File LR29862) Littelfuse self-certified
Ampere Ratings
Ampere Range: Approvals:
11/8 11/4 21/4 21/2
31/2
61/4 171/2
Example part number (series amperage): LLSRK30ID. NOTE: fuses rated above Indicator fuses.
Recommended Fuse Blocks
LR600 Series Refer Blocks Holders section this catalog additional information.
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POWR-PRO® Fuses
LLSRK_ID Series Indicator® POWR-PRO® Class Fuses
Dual-Element, Time-Delay 1/10 Amperes
POWR-PRO® Fuses
Plated Caps
Blown Fuse Indicator Assembly
Precision Formed Short Circuit Element
Fiberglass Reinforced Pultruded Body Granular Quartz Filling
Elastomeric Silicone Overload Section
1.25A 1.6A 2.8A 3.5A
1000
TIME SECONDS
TIME SECONDS
0.01
1000 2000
CURRENT AMPERES
CURRENT AMPERES
Contact Littelfuse additional fuse curves.
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POWR-PRO® Fuses
LLSRK_ID Series Indicator® POWR-PRO® Class Fuses
Dual-Element, Time-Delay 1/10 Amperes Current-Limiting Effects LLSRK_ID (600V) Fuses
POWR-PRO® Fuses Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 1,060 1,350 1,600 1,700 1,900 2,000 2,100 2,200 2,400 2,500 2,700 2,900 3,200 3,300 Apparent Symmetrical Current Various Fuse Ratings 1,600 2,000 2,300 2,600 2,800 3,000 3,100 3,300 3,500 3,800 4,000 4,200 4,600 4,700 100A 2,100 2,800 3,200 3,600 3,800 4,100 4,400 4,600 4,900 5,200 5,700 6,200 7,300 8,000 200A 2,600 3,400 3,900 4,500 4,800 5,200 5,700 6,000 6,500 7,000 7,750 8,500 10,000 11,000 400A 4,100 5,250 6,000 6,700 7,500 8,000 8,500 9,000 9,500 10,000 11,000 12,000 14,000 16,000 600A -8,000 9,000 10,000 11,000 12,000 12,500 13,000 14,000 15,000 17,000 18,000 21,000 23,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data derived from Peak Let-Thru Curves
1000000
100000 PEAK LET-THRU AMPERES
10000
3.5A
1000
100000
AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES
200000
10000
1000
PEAK LET-THRU AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES
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POWR-PRO® Fuses
LLNRK/LLSRK Series POWR-PRO® Class Fuses
250/600 Dual-Element, Time-Delay 1/10 Amperes
Littelfuse LLNRK LLSRK series POWR-PRO fuses provide superior overload short-circuit protection service entrance, main, feeder general-purpose branch circuits amperes. LLNRK/LLSRK series fuses installed existing Class fuse blocks upgrade systems containing lower interrupting rating Class one-time renewable fuses.
POWR-PRO® Fuses
Applications
general purpose circuits Motors Transformers Solenoids Fluorescent lighting system components with high in-rush currents
Features/Benefits
Extremely current-limiting Reduces damage circuits equipment under short-circuit conditions. Stops damaging shortcircuits faster than mechanical protective device. 300kA Interrupting Rating Littelfuse self-certified 300,000 amperes standard. Meets future trend towards higher available short-circuit currents. Reduced costs Current-limiting design often permits readily available, less costly equipment. resistance design reduces power consumption utility bills. Excellent time-delay True dual-element construction, with separate non-fatiguing thermally-reversible spring-loaded thermal overload element, withstands repeated surges within rated time delay without opening needlessly. Eliminates needless downtime caused power surges equipment demands.
Specifications
Voltage Ratings: Volts (LLNRK) Volts (LLSRK) Volts (LLNRK) Volts (LLSRK) 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 20,000 amperes 1/10 amperes Standard 248-12, Class Listed (File E81895) Certified (File LR29862) QPL: Federal Specification WF-1814 Littelfuse self-certified
Ampere Ratings
61/4 /100 11/4 21/4 171/2 21/2 LLSRK Only. Example part number (series amperage): LLNRK 450. online ordering, numbers LNRK LSRK LLNRK/LLSRK.
Interrupting Ratings:
Ampere Range: Approvals:
Recommended Fuse Blocks
LR250 series (LLNRK Series) LR600 series (LLSRK Series) Refer Blocks Holders section this catalog additional information.
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POWR-PRO® Fuses
LLNRK/LLSRK Series POWR-PRO® Class Fuses
250/600 Dual-Element, Time-Delay 1/10 Amperes
70-600A POWR-PRO® Fuses
FIG.
Amperes Refer Fig. Series
FIG.
Dimensions Inches parentheses)
(50.8) (127.0) (76.2) (139.7) (149.2) (200.0) (181.0) (244.5) (219.1) (295.3) (263.5) (339.7)
(12.7) (19.1) (19.1)
(14.3) (20.6) (20.6) (27.0) (27.0) (33.3) (40.5) 127/ (46.8) (53.2) (65.9) (65.9) (78.6)
(2.0) (2.4) (2.4) (2.4) (3.2) (3.2) (4.8) (4.8) (6.4) (6.4) (6.4) (6.4)
1/10
LLNRK LLSRK LLNRK LLSRK LLNRK LLSRK LLNRK LLSRK LLNRK LLSRK LLNRK LLSRK
(12.7) (15.9) (15.9) (25.4) (15.9) (25.4) (27.0) (31.8) (27.0) (38.1) (37.3) (44.5) (37.3) (50.8) (49.2) (50.8) (63.5) (63.5) (60.3) (76.2) (61.1)
(4.0) (9.5) (4.8) (15.9) (4.8) 15.9) (6.4) (22.2) (19.1) (31.8) (19.1) (38.1) (28.6) 127/ (46.8) (28.6) (53.2) (41.3) (59.5) (41.3) (72.2) (50.8) (72.2) (50.8) (84.9)
(6.4) (6.4) (11.1) (11.1) (15.9) (15.9) (19.1) (19.1)
(7.1) (7.1) (7.1) (7.1) (10.3) (10.3) (13.5) (13.5)
(12.7) (12.7) (17.5) (17.5) (23.8) (23.8) (28.6) (28.6)
LLNRK
100A 200A 400A 600A
LLSRK
100A 200A 400A 600A 1000 2000
1000
1000
TIME SECONDS
TIME SECONDS
3000 4000
6000 8000 10000
20000
30000 40000
CURRENT AMPERES
60000 80000 100000
CURRENT AMPERES
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60000 80000 100000
1000
2000
3000 4000
6000 8000 10000
20000
30000 40000
POWR-PRO® Fuses
LLNRK/LLSRK Series POWR-PRO® Class Fuses
250/600 Dual-Element, Time-Delay 1/10 Amperes Current-Limiting Effects LLNRK (250V) fuses
POWR-PRO® Fuses Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Various Fuse Ratings 1,100 1,250 1,400 1,500 1,600 1,700 1,800 1,900 2,000 2,200 2,300 2,500 2,600 1,400 1,900 2,100 2,400 2,600 2,800 2,850 3,000 3,200 3,500 3,900 4,000 4,500 4,800 100A 2,000 2,700 3,100 3,500 3,900 4,000 4,300 4,600 4,800 5,200 5,700 6,000 6,700 7,000 200A 2,700 3,500 4,200 4,600 5,000 5,250 5,500 5,800 6,300 6,700 7,200 8,100 9,100 9,700 400A 4,800 6,200 7,000 8,000 8,300 9,000 9,500 9,800 10,200 11,000 12,200 12,700 14,000 15,000 600A 5,000 8,500 9,500 10,800 11,500 12,000 12,500 13,500 14,000 15,000 16,000 17,000 19,000 20,000
Current-Limiting Effects LLSRK (600V) fuses
Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Various Fuse Ratings 1,060 1,350 1,600 1,700 1,900 2,000 2,100 2,200 2,400 2,500 2,700 2,900 3,200 3,300 1,600 2,000 2,300 2,600 2,800 3,000 3,100 3,300 3,500 3,800 4,000 4,200 4,600 4,700 100A 2,100 2,800 3.200 3,600 3,800 4,100 4,400 4,600 4,900 5,200 5,700 6,200 7,300 8,000 200A 2,600 3,400 3,900 4,500 4,800 5,200 5,700 6,000 6,500 7,000 7,750 8,500 10,000 11,000 400A 4,100 5,250 6,000 6,700 7,500 8,000 8,500 9,000 9,500 10,000 11,000 12,000 14,000 16,000 600A 8,000 9,000 10,000 11,000 12,000 12,500 13,000 14,000 15,000 17,000 18,000 21,000 23,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data derived from Peak Let-Thru Curves
Prospective Symmetrical Amperes Short-Circuit Current Note: Data derived from Peak Let-Thru Curves
LLNRK
LLSRK
1000000 800000 600000 400000 300000 200000 100000 80000 60000
1000000 800000 600000 400000 300000 200000 100000 80000 60000
PEAK LET-THRU AMPERES
40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000
PEAK LET-THRU AMPERES
600A 400A 200A 100A
600A 400A 200A 100A
40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
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POWR-PRO® Fuses
JTD_ID Series Indicator® POWR-PRO® Class Fuses
Time Delay 8/10 Amperes
Applications
POWR-PRO® Fuses Fused combination motor controllers provide Type ("No Damage") motor branch circuit short-circuit ground fault protection Motor control centers Transformer protection Protection Listed series rated molded case circuit breaker panels General purpose circuits mains, feeders branch circuits especially when space limited.
Features/Benefits
Reduce downtime glance indicating window JTD_ID Indicator fuse pinpoints open fuses immediately. indicating window dark, fuse opened. It's that simple. Reduce nuisance opening Indicator fuses have superior time-delay cycling characteristics which lengthen fuse life decrease needless opening. Reduce fuse inventory JTD_ID Indicator fuses have superior performance characteristics, which means they used variety applications; therefore, decreasing fuse inventory. Reduce equipment damage Indicator fuses provide superior overload short-circuit protection that reduce equipment damage. Indicator fuses also provide Type Damage" protection NEMA type motor starters. Reduce accidents JTD_ID Indicator fuse improves safety minimizing exposure live circuits. Unlike other forms blown fuse indication, once indicating window darkens, stays dark. does matter power fuse tool box. Other forms indication require power remain which safety hazard personnel.
Littelfuse POWR-PRO JTD_ID Indicator Class fuse provides visual blown fuse indication maximum protection compact package. compact Class package designed specifically circuits where space premium. current-limiting time delay JTD_ID offers patented, true dual-element design that ideal circuits with high, in-rush currents. Superior performance characteristics JTD_ID Indicator fuses reduce nuisance fuse opening, blown fuse indication reduces downtime while increasing safety.
Specifications
Voltage Ratings: Volts Volts 100A) Volts (110 600A) 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 8/10 amperes Standard 248-8, Class ULListed (File E81895) Certified (File LR29862) Littelfuse self-certified 100A: 300VDC self certified 600A: 500VDC self certified
Ampere Ratings
Interrupting Ratings:
Ampere Range: Approvals:
Example part number (series amperage):
Recommended Fuse Blocks
LJ600 series, LPSJ series Refer Blocks Holders section this catalog additional information.
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POWR-PRO® Fuses
JTD_ID Series Indicator® POWR-PRO® Class Fuses
Time-Delay 8/10 Amperes Inside Look
POWR-PRO® Fuses
Superior Short-Circuit Elements
Reduce damage equipment enables Littelfuse JTD_ID provide Type Damage" protection NEMA motor starters.
Plated Caps
Help reduce corrosion provide superior contact lower heat generation.
Blown Fuse Indicator Stone-Sand Filler
Helps provide Ipeak values well below maximum limits improves heat dissipation reliability. Incorporates precision wound elements provide consistent reliable blown fuse indication.
Solid State Overload Section Elastomeric Silicone Plug
space-age material used patented overload section Littelfuse JTD_ID. Patented thermally reversible design utilizes high-tech aircraft grade polymers ensure reliable operation every time.
Granular Quartz Filler
Assists quenching that occurs during overload conditions.
FIG.
FIG.2
Amperes 8/10-
Refer Fig.
Dimensions Inches parentheses) (57.2) (60.3) (66.7) (76.2) (85.7) (95.3)
(92.1) (111.1) (133.4) (152.4)
(28.6) (41.3) (54.0) (66.7)
(12.7) (15.9)
(20.6)
(27.0) (117.5) (146.1) (181.0) (203.2)
(19.1)
(7.1) (7.1)
(3.2)
(28.6) (41.3) (50.8)
(4.8) (6.4) (9.5)
(10.3) (13.5)
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POWR-PRO® Fuses
JTD_ID Series Indicator® POWR-PRO® Class Fuses
Time-Delay 8/10 Amperes Current-Limiting Effects JTD_ID (600V) fuses
POWR-PRO® Fuses Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Various Fuse Ratings 1,000 1,050 1,100 1,200 1,300 1,375 1,500 1,600 1,050 1,125 1,200 1,300 1,350 1,400 1,500 1,600 1,700 1,800 2,000 2,175 1,500 1,900 2,100 2,300 2,500 2,600 2,700 2,800 3,000 3,200 3,400 3,600 3,950 4,000 100A 1,800 2,450 2,800 3,000 3,300 3,500 3,700 3,900 4,200 4,500 4,900 5,200 6,000 6,500 200A 2,800 3,600 4,100 4,400 5,000 5,100 5,400 5,600 6,000 6,400 7,200 7,800 9,000 10,000 400A 4,800 5,700 6,500 7,250 8,000 8,400 9,000 9,200 10,000 10,500 11,200 12,200 14,500 16,000 600A 5,000 7,750 9,000 9,700 10,500 11,000 12,000 12,500 13,000 14,000 15,500 16,500 19,000 20,500
Prospective Symmetrical Amperes Short-Circuit Current Note: Data derived from Peak Let-Thru Curves
1000000
PEAK LET-THRU AMPERES
100000
600A 400A 200A
10000
100A 5.6A
1000
1000
10000
100000 200000
AVAILABLE FAULT SYMMETRICAL R.M.S. AMPERES
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POWR-PRO® Fuses
CCMR Series POWR-PRO® Class Fuses
Dual-Element, Time-Delay 2/10 Amperes
circuits than would possible using fast-acting fuses. CCMR series fuses provide superior protection fraction space required other fuse classes. example, when 600V three pole, ampere Class fuse blocks replaced Littelfuse Class fuse blocks, mounting space requirements reduced more. This especially important when panel contains control devices many motors. addition Listed smaller sizes, Littelfuse CCMR series fuses available larger sizes from amperes! other
POWR-PRO® Fuses
fuse available with this current carrying capacity package this small. fact, ampere CCMR fuse smallest fuse available rated volts.
Applications
CCMR series fuses specifically designed withstand sustained starting currents small motors Provide short-circuit protection motor branch circuits with IEC- NEMA-rated motor controllers contactors General purpose circuits amps
Features/Benefits
space saving protection motor circuits HP*, recommend Littelfuse POWR-PRO CCMR series fuses. These fuses only true dual-element, time-delay fuses that come small package specifically engineered motor branch circuit protection. CCMR series fuses provide Type Damage" protection both NEMA-rated more sensitive (International Electrotechnical Commission) type motor circuit components. Rating rating, CCMR fuses most current-limiting fuses available. They also provide superior short-circuit protection since their time-delay characteristics permit smaller fuse ratings motor Space savings other fuse class approved branch circuit protection volt rating 300,000 A.I.R. such small package. Extremely current-limiting Reduces damage caused heating magnetic effects short-circuit currents. Stops damaging shortcircuit currents faster than mechanical protective device. Excellent time-delay Eliminates needless downtime caused power surges equipment demands. Permits selection fuse sizes closer actual load conditions, which provides better protection. 300kA Interrupting Rating Littelfuse self-certified 300,000 amperes standard. Meets future trend towards higher available short-circuit currents.
*Consult Motor Protection Tables Fuseology section specific motor sizing information
Specifications
Volts Volts (CCMR (CCMR 10A) (CCMR 60A) Volts (CCMR Volts (CCMR 30A) Interrupting Ratings: 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 20,000 amperes amperes Ampere Range: Approvals: Standard 248-4, Class Listed amps (File E81895) Standard 248, Class Listed amps (File E81895) Certified amps (File LR29862) Littelfuse self-certified Voltage Ratings:
Ampere Ratings
11/4 11/2
61/4
Example part number (series amperage): CCMR
Recommended Fuse Blocks
LPSC (CCMR 30A) L60030C series (CCMR 30A) L60060C series (CCMR 60A) Refer Blocks Holders section this catalog additional information.
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POWR-PRO® Fuses
CCMR Series POWR-PRO® Class Fuses
Dual-Element, Time-Delay 2/10 Amperes
.25" 1.50"
(38.1 (6.4
POWR-PRO® Fuses
0-30A
.50"
(12.7
.41"
(10.3
.850"
(21.6
35-60A
.125"
(3.2
1.880"
(47.8
Current-Limiting Effects CCMR (600V) fuses
Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Various Fuse Ratings 1,000 1,050 1,150 1,200 1,000 1,050 1,125 1,200 1,300 1,400 1,000 1,100 1,125 1,200 1,250 1,400 1,450 1,000 1,050 1,125 1,175 1,200 1,300 1,350 1,400 1,500 1,600 1,750
*Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
8/10A 1/4A 1/2A 8/10A 1/2A 1/2A
1/4A
1/2A
1000
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000
TIME SECONDS
1/4A
CURRENT AMPERES
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1000
POWR-PRO® Fuses
IDSR Series Indicator® POWR-PRO® Class Fuse
AC/DC Time-Delay 1/10 Amperes
Money wasted each time circuit opens halts production. indicator window IDSR allows maintenance personnel pinpoint blown fuses immediately. circuit then tested problem corrected without unnecessary delay, minimizing costly downtime.
POWR-PRO® Fuses
Applications
circuits general purpose circuits Motors Transformers Solenoids Fluorescent lighting system components with high in-rush currents
Features/Benefits
Superior Performance Littelfuse leading edge metallurgy eliminates moving parts true dual-element design. IDSR also provides superior time-delay withstand minor current surges without sacrificing protection sustained overloads shortcircuit conditions. Volt AC/DC Rating IDSR Listed volts AC/DC, which makes ideal variety applications. also MSHA approved. Reduce Downtime Costly downtime minimized using Littelfuse Indicator fuses. glance indicator window tells fuse blown. window dark, fuse opened. It's that simple. Increase Safety Littelfuse Indicator Fuses minimize exposure "live" circuit parts while searching blown fuse. Other forms indication require current power light. Littelfuse Indicator fuses identified with power off.
Littelfuse IDSR Indicator fuse offers patented solid-state design provides state-of-the-art reliability along with convenience blown fuse indication. unique design IDSR also features volt AC/DC rating making ideal applications.
Specifications
Voltage Ratings: Interrupting Ratings: Volts Volts 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 20,000 amperes amperes Standard 248-12 198M, Class Listed (File E81895) Certified (File LR29862) MSHA Volt Listing
Ampere Ratings
/100
Ampere Range: Approvals:
11/8 11/4
Example part number (series amperage): IDSR Note: fuses rated above Indicator fuses.
Dimensions
Please refer FLSR_ID dimensions.
Recommended Fuse Blocks
LR600 series Refer Blocks Holders section this catalog additional information. Contact Littelfuse characteristic curves.
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POWR-PRO® Fuses
Series POWR-PRO® Class Fuses
AC/DC Time-Delay 2000 Amperes
constants. This makes fuse uniquely suited applications such crane rail circuits mass transit systems. Contact factory application information. only systems, consider POWR-PRO KLPC series fuses. They have full seconds time-delay 500% rated current, have wider range ratings.
POWR-PRO® Fuses
Applications
protection, especially large battery circuits distribution variable speed drives Protection crane rail circuits other large equipment such electrical power shovels, ship dock cranes, etc. Mass transit systems, including light rail applications General purpose AC/DC circuits mains, feeders, branch circuits
Features/Benefits
Volt AC/DC rated "All-purpose" Class fuses reduce inventory requirements because need separate fuses eliminated. Listed 200,000 A.I.R. 50,000 A.I.R. Reliable interruption overcurrents their ratings. Minimizes need time consuming expensive short-circuit studies. Moderate time-delay Four seconds time-delay 500% current provides adequate time-delay many applications most applications. They will withstand most harmless overloads line surges. your needs exceed capabilities, consider KLPC fuses applications. Selective coordination series fuses coordinate well with Littelfuse fuses rated amperes less. combination IDSR series fuses provide complete volt rated system. Extremely current-limiting Maximum current limitation reduces damage circuits equipment under short-circuit conditions. Stops damaging short-circuits faster than mechanical protective device.
Littelfuse POWR-PRO series Class fuses represent another first fuse protection. series fuses first Listed volts Class fuses. Since they used both they eliminate concern that only fuses inserted into circuits. While series fuses Listed interrupting rating more than adequate most applications (50,000 amperes millisecond time constant), tests high power laboratory have shown that this remarkable fuse capable performing much longer time
Specifications
Voltage Ratings: Interrupting Ratings: Volts Volts 200,000 amperes symmetrical 50,000 amperes millisecond time-constant) 2000 amperes Standard 248-10, Class Listed 2000 amps (File E81895) Recognized amps (File E71611) Certified 2000 amps (File LR29862)
Ampere Ratings
1000 1100 1200 1300 1350 1400 1500 1600 1800 1900 2000
Ampere Range: Approvals:
Example part number (series amperage): 1200
Dimensions
Please refer KLPC dimensions
2005 Littelfuse POWR-GARDProducts Catalog
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POWR-PRO® Fuses
Series POWR-PRO® Class Fuses
AC/DC Time-Delay 2000 Amperes Current-Limiting Effects (600V) Fuses
POWR-PRO® Fuses Short-Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Various Fuse Ratings 800A 5,000 8,500 9,750 10,500 11,500 12,000 12,500 13,500 14,000 15,000 16,000 18,000 20,000 23,000 1200A 5,000 10,000 14,000 15,000 16,000 17,000 18,000 19,000 21,000 22,000 24,000 25,000 30,000 32,000 1600A 5,000 10,000 15,000 19,000 21,000 22,000 23,000 24,000 26,000 28,000 30,000 33,000 38,000 41,000 2000A 5,000 10,000 15,000 20,000 25,000 26,000 28,000 30,000 32,000 34,000 36,000 40,000 44,000 46,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
1000
800A 1200A 1600A 2000A
1000000 800000 600000 400000 300000 200000 100000 80000 60000 2000A 1600A 1200A 800A
PEAK LET-THRU AMPERES
TIME SECONDS
40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000
60000 80000 100000 200000 600000 800000 1000000 1000 300000 400000 6000 8000 10000 20000 30000 40000 2000 3000 4000
CURRENT AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
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General Purpose Fuses
KLLU Class Fuses FLNR_ID/FLSR_ID Indicator® Class Fuses FLNR/FLSR Class Fuses KLNR/KLSR Class Fuses NLN/NLS Class Fuses RLN/RLS Class Fuses Class Fuses JLLN/JLLS POWR-T Class Fuses Class Fuses Class Class Fuses Plug Fuses
26-28 29-32 34-35 36-37 39-40 41-43 45-47
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General Purpose Fuses
KLLU Class Fuses
Time-Delay 4000 Amperes
Applications
Service switches Switchboard mains feeders Bolted pressure contact switches Motor control center mains Large motor branch circuits Listed series rated protection molded case circuit breaker panelboards loadcenters. panelboard manufacturers' literature recommended fuse rating.
General Purpose Fuses
Safety
200,000 A.I.R. Provides reliable interruption overcurrents 200,000 amperes. When used motor branch circuit protection, KLLU fuses sized close motor full load current, providing excellent protection branch circuit conductors, motor control equipment motors.
Longer Equipment Life
Current-Limiting Reduces short-circuit damage systems equipment. Reduced downtime. second minimum time-delay 500% current eliminates needless downtime caused heavy starting currents large motors other inductive loads. Selective coordination KLLU fuses coordinate well with other Class fuses with current-limiting Littelfuse fuses rated amps less. This means less time spent trying locate shortcircuits overloaded equipment, because only fuse immediately line side affected circuit opens.
KLLU series Listed, time-delay, Class fuses quality fuses, developed provide somewhat lower priced alternate POWR-PRO KLPC series fuses. KLLU series fuses meet exceed requirements Class fuses. superior protection performance, specification-grade POWR-PRO KLPC series fuses recommended fuse. Complete information KLPC fuses found POWR-PRO Fuse section this catalog.
Easy
200,000 A.I.R. rating minimizes need short-circuit calculations, while meeting present future system requirements. KLLU fuse time-current characteristics closely match typical timecurrent curves circuit breakers. Although fuse/circuit breaker systems seldom 100% coordinated, KLLU series fuses permit wider range breaker setting than fast acting Class fuses. Excellent protection single breaker group breakers.
Specifications
Voltage Ratings: Interrupting Ratings: Ampere Range: Approvals: Volts Contact factory 200,000 amperes symmetrical 4000 amperes Standard 248-10, Class Listed (File E81895) Certified (File LR29862)
Ampere Ratings
1000 1200 1350 1400 1500 1600 1800 2000 2500 3000 3500 4000
Example part number (series amperage): KLLU 1000
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General Purpose Fuses
KLLU Class Fuses
Time-Delay 4000 Amperes
General Purpose Fuses
FIG.1
FIG.2
FIG.
FIG.
Amperes 1200 1201 1600 1601 2000 2001 2500 2501 3000 3001 4000
Fig.
Dimensions Inches parentheses) (95.3) (95.3) (95.3) (95.3) (146.1) (146.1) (146.1) (146.1) (146.1) (146.1) (171.5) (171.5) (171.5) (171.5) (171.5) (171.5) (235.0) (235.0) (235.0) (235.0) (235.0) (241.3) (241.3) (241.3) (241.3) (241.3) (219.1) (273.1) (273.1) (273.1) (273.1) (273.1) (41.3) (41.3) (44.5) (44.5) (50.8) (50.8) (60.3) (69.9) (88.9) (101.6) (63.5) (63.5) (76.2) (88.9) (127.0) (127.0)
(15.9) (28.6) (15.9) (28.6) (15.9) (28.6) (15.9) (28.6) (15.9) (28.6) (15.9) (34.9)
(9.5)
(15.9) (28.6)
(15.9) (19.1) (15.9) (19.1) (15.9) (19.1) (15.9) (19.1) (15.9) (19.1) (15.9) (34.9)
(9.5)
(11.1)
(12.7)
(19.1)
(19.1)
(19.1)
(146.1)
(171.5)
(235.0)
91/2
(241.3)
(273.1)
(44.5)
(82.6)
(120.7)
(146.1)
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General Purpose Fuses
KLLU Class Fuses
Time-Delay 4000 Amperes Current-Limiting Effects KLLU (600V) fuses
Short-Circuit Current* 800A 5,000 General Purpose Fuses 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 5,000 10,000 11,900 13,000 14,000 14,500 15,000 16,000 17,000 18,000 19,000 21,000 24,000 26,000 Apparent Symmetrical Current Various Fuse Ratings 1200A 5,000 10,000 15,000 18,500 20,000 21,000 22,000 23,000 24,000 26,000 28,000 30,000 35,000 38,000 1600A 5,000 10,000 15,000 20,000 25,000 26,500 28,500 30,000 32,000 34,000 36,000 38,000 44,000 48,000 2000A 5,000 10,000 15,000 20,000 25,000 30,000 34,000 35,000 38,000 42,000 44,000 46,000 50,000 53,000 3000A 5,000 10,000 15,000 20,000 25,000 30,000 35,000 37,000 39,000 43,000 46,000 48,000 51,000 60,000 4000A 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 44,000 50,000 54,500 57,500 68,000 74,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
601A 800A 1200A 1600A 2000A 3000A 3500A 4000A
1000
10000000
1000000 PEAK LET-THRU AMPERES
TIME SECONDS
100000
4000A 3000A 2000A 1600A 1200A 800A
10000
60000 80000 100000
200000
300000 400000
600000 800000 1000000
CURRENT AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES
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100000
200000
6000 8000 10000
20000
30000 40000
10000
1000
2000
3000 4000
1000
1000
General Purpose Fuses
FLNR_ID/FLSR_ID Indicator® Class Fuses
250/600 Dual-Element, Time Delay 1/10 Amperes
Applications
Service entrance switches Switchboard main feeder switches Motor control center mains motor branch circuits Individual fused combination motor controllers Distribution panelboards Industrial control panels Protection fully rated panelboards loadcenters general purpose circuits
General Purpose Fuses
Features/Benefits
Reduce Downtime glance indicating window FLNR_ID FLSR_ID Indicator fuse pinpoints open fuses. indicating strip black, fuse opened. It's that simple. Reduce Nuisance Opening FLNR_ID FLSR_ID Indicator fuses have superior time-delay cycling characteristics which lengthen fuse life decrease needless opening. Reduce Fuse Inventory Because FLNR_ID FLSR_ID Indicator fuses have superior performance characteristics, they used variety applications, thus decreasing fuse inventory. Reduce Equipment Damage FLNR_ID FLSR_ID Indicator fuses have superior overload short-circuit protection which reduce equipment damage. Reduce Accidents FLNR_ID FLSR_ID Indicator fuses improve safety minimizing exposure live circuits. Unlike other forms blown fuse indication, doesn't matter power off. second guessing whether light means fuse good bad, current going across blown fuse power lighted accessory.
Littelfuse FLNR_ID/FLSR_ID Indicator fuses provide blown fuse indication glance. patented state-of-the-art solid state design provides maximum reliability superior performance characteristics true dual-element design. Indicator fuses reduces downtime nuisance openings, increases safety, save thousands dollars lost production time.
Specifications
Voltage Ratings: Volts (FLNR_ID); Volts (FLSR_ID) Volts (FLNR 1/10 30A); Volts (FLNR_ID 600A); Volts (FLSR_ID) 200,000 amperes symmetrical 300,000 amperes symmetrical (Littelfuse self-certified) 20,000 amperes amperes Standard 248-12, Class Listed (File E81895) Certified (File LR29862) MSHA Volt Listing (FLSR_ID) QPL: Federal Specification WF-1814
Ampere Ratings
/10** 41/2 /100 11/4 171/ 31/2 *FLSR_ID only **FLNR only Example part number (series amperage): FLSR100ID NOTE: 1/10 ampere volt fuses, order non-indicating FLNR series fuses. NOTE: FLNR_ID fuses rated 600A Indicator fuses. NOTE: FLSR_ID fuses rated above Indicator fuses.
Interrupting Ratings:
Ampere Range: Approvals:
Recommended Fuse Blocks
LR250 series (for FLNR_ID series fuses) LR600 series (for FLSR_ID series fuses) Refer Blocks Holders section this catalog additional information.
2005 Littelfuse POWR-GARDProducts Catalog
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General Purpose Fuses
FLNR_ID/FLSR_ID Indicator® Class Fuses
250/600 Dual-Element, Time Delay 1/10 Amperes
General Purpose Fuses 70-600A
FIG.
Refer Fig.
FIG.
Dimensions Inches parentheses)
(50.8) (127.0) (76.2) 51/2 (139.7) (149.2) (200.0) 71/8 (181.0) (244.5) (219.1)
Amperes
Series
FLNR FLSR_ID FLNR_ID FLSR_ID FLNR_ID FLSR_ID FLNR_ID FLSR_ID FLNR_ID FLSR_ID FLNR_ID FLSR_ID
(12.7) (19.1) (19.1)
(12.7) (15.9) (15.9) (15.9)
(14.3) (20.6) (20.6)
(25.4) (25.4) (31.8)
(27.0) (27.0) (33.3)
(27.0) (27.0)
11/2 (38.1) (37.3) (40.5) (44.5) (37.3) 127/ (46.8) (50.8)
(49.2) (53.2) (50.8) (60.3)
(295.3) 21/2 (63.5) (263.5) (63.5) (339.7) (76.2)
(65.9)
(65.9)
(61.1) (78.6)
(2.0) (2.4) (2.4) (2.4) (3.2) (3.2) (4.8) (4.8) (6.4) (6.4) (6.4) (6.4)
(4.0) (4.8) (4.8) (6.4) (19.1) (19.1) (28.6) (28.6) (41.3) (41.3) (50.8) (50.8)
(9.5)
(15.9) (15.9)
(22.2)
11/4 (31.8) (38.1) 127/32 (46.8) (53.2) (59.5) (72.2)
(6.4) (6.4)
(7.1) (7.1) (7.1) (7.1) (10.3) (10.3) (13.5) (13.5)
(12.7) (12.7) (17.5) (17.5)
(11.1) (11.1) (15.9) (15.9) (19.1) (19.1)
(23.8) (23.8)
(72.2)
(28.6) (28.6)
311/32 (84.9)
additional application information request Product Bulletin EL-4
2/10A 1/4A 3/10A 4/10A 1/2A 6/10A 8/10A 1/4A 4/10A 1/2A 1/2A 1/2A
FLNR
1000
1.25A 1.6A 2.5A
FLSR_ID
1000
TIME SECONDS
TIME SECONDS
10000 8000 6000 4000 3000 2000 1000
1000
CURRENT AMPERES
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CURRENT AMPERES
2005 Littelfuse POWR-GARDProducts Catalog
General Purpose Fuses
FLNR_ID/FLSR_ID Indicator® Class Fuses
250/600 Dual-Element, Time Delay 1/10 Amperes Current-Limiting Effects FLNR_ID (250V) fuses
Short-Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Current Various Fuse Ratings 1,400 1,550 2,000 2,250 2,400 2,550 2,650 2,800 3,000 3,200 3,400 3,850 4,100 4,300 2,100 2,500 3,150 3,400 3,750 4,100 4,300 4,400 5,000 5,250 5,750 6,000 7,000 7,500 100A 3,100 3,900 4,400 5,000 5,250 5,600 5,800 6,250 6,500 7,000 7,500 8,000 9,000 9,750 200A 5,000 6,500 7,250 8,250 9,000 9,500 9,750 10,250 10,500 11,500 12,500 13,500 15,200 16,500 400A 5,000 9,500 10,500 12,000 12,500 13,500 14,000 15,000 16,000 17,000 19,000 21,000 24,000 26,000 600A 5,000 10,000 General Purpose Fuses 14,000 16,000 16,500 18,000 19,000 20,000 21,000 23,000 25,500 27,500 31,500 34,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
Current-Limiting Effects FLSR_ID (600V) fuses
Short-Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Current Various Fuse Ratings 1,250 1,600 1,800 2,250 2,450 2,700 2,900 3,000 3,400 3,600 3,900 4,300 4,500 4,600 2,100 2,850 3,400 3,800 4,100 4,500 4,800 5,000 5,250 5,750 6,250 6,750 7,600 8,400 100A 3,200 4,300 5,000 5,500 5,700 6,400 6,700 7,250 7,750 8,100 9,000 9,750 11,100 12,250 200A 5,000 7,250 8,500 9,500 10,250 10,750 11,500 12,000 13,000 14,000 15,000 16,500 19,000 21,500 400A 5,000 10,000 13,500 15,750 17,000 18,000 19,000 19,500 21,000 22,000 24,000 26,000 28,000 30,000 600A 5,000 10,000 15,000 19,000 21,000 23,000 24,250 27,000 29,000 30,500 33,000 35,000 38,000 40,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
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General Purpose Fuses
FLNR_ID/FLSR_ID Indicator® Class Fuses
250/600 Dual-Element, Time Delay 1/10 Amperes
FLNR_ID
1000 100A 200A 400A 600A
FLSR_ID
1000
100A
200A
400A 600A
General Purpose Fuses
TIME SECONDS
TIME SECONDS
1000
2000
3000
4000
6000
10000 8000
20000
30000
40000
60000
100000 80000
1000
2000
3000
4000
6000
10000 8000
20000
30000
40000
60000
100000 80000
200000
300000
400000
600000
1000000 800000
FLNR_ID
1000000 800000 600000
PEAK THRU AMPERES
60000 40000 30000
400A 200A 100A
PEAK THRU AMPERES
400000 300000
200000
100000
100000 80000 600A
20000 10000 8000 6000 4000 3000 2000
1000
CURRENT AMPERES
CURRENT AMPERES
FLSR_ID
1000000 800000 600000 400000 300000 200000
80000 60000 50000 40000 30000 20000
600A 400A 200A
100A
10000 8000 6000 5000 4000 3000 2000
1000
1000
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
1000
2000
3000
4000
6000
8000
10000
20000
30000
40000
60000
80000
100000
200000
AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
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2005 Littelfuse POWR-GARDProducts Catalog
General Purpose Fuses
FLNR/FLSR Class Fuses
250/600 Dual-Element, Time-Delay 1/10 Amperes
Applications
Service entrance switches Switchboard main feeder switches Motor control center mains motor branch circuits Individual fused combination motor controllers Distribution panelboards Industrial control panels Protection fully rated panelboards loadcenters general purpose circuits
General Purpose Fuses
Safety
200,000 A.I.R. Reliable interruption overcurrents 200,000 amperes. Faster acting short-circuit protection than non-current-limiting mechanical protective device.
Reliability
Accurate reliable Automated, precision manufactured assembled parts ensure accurate, consistent response overloads short-circuits.
Longer Equipment Life
Reduced damage equipment caused heating magnetic forces short-circuits. Equipment runs cooler with low-resistance dual-element fuses.
Littelfuse FLNR/FLSR series fuses have been superior Class dual-element time-delay fuses, most widely used class fuses. FLNR/FLSR series fuses provide excellent protection types circuits especially those containing motors. However, users specifiers should consider significant benefits offered Indicator fuses. Complete information these fuses found earlier this section.
Specifications
Voltage Ratings: Volts (FLNR) Volts (FLSR) Volts (FLNR) Volts (FLSR) 200,000 amperes symmetrical 20,000 amperes amperes Standard 248-12, Class Listed (File E81895) Certified (File LR29862) MSHA Volt Listing (FLSR) QPL: Federal Specification WF-1814
Ampere Ratings
/100 11/2 **FLNR only, Example part number (series amperage): FLSR100
Interrupting Ratings: Ampere Range: Approvals:
Recommended Fuse Blocks
LR250 series (for FLNR series fuses) LR600 series (for FLSR series fuses) Refer Blocks Holders section this catalog additional information.
Dimensions
Refer FLNR_ID series FLNR dimensions FLSR_ID series FLSR dimensions.
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General Purpose Fuses
KLNR/KLSR Class Fuses
250/600 Fast Acting Amperes
Applications
Resistance heaters Lighting circuits Non-inductive loads Molded case circuit breaker load centers panelboards have increased interrupting ratings when series rated with Littelfuse KLNR/KLSR Class fuses. Refer panelboard manufacturer's literature Listed combination fuses panelboards. Series ratings 200,000 amperes available.
General Purpose Fuses
Safety
200,000 A.I.R. Reliable interruption overcurrents 200,000 amperes. Extremely current-limiting Stops damaging short-circuit current faster than mechanical protective device. Fast-acting Provides fast acting protection equipment such variable speed drives, rectifiers other equipment containing surge-sensitive components.
Longer Equipment Life
Current-limiting design reduces damage equipment caused heating magnetic effects short-circuit currents.
Economical
KLNR/KLSR series fuses were earliest type current-limiting fuses developed. Their single-element, silver link design enables them provide fast-acting overload short-circuit protection. When used protect inductive loads such motors, solenoids, transformers, KLNR/KLSR series fuses must greatly oversized prevent opening fuses harmless in-rush currents. such applications, KLNR/ KLSR series fuses only provide short-circuit protection. recommend using POWR-PRO LLNRK/LLSRK series Class RK1, dual-element, time-delay fuses applications requiring current-limiting ability Class fuses. POWR-PRO LLNRK/ LLSRK series fuses also recommended existing applications where fast-acting fuses have been opening harmless system surges such motor starting currents.
Extremely current-limiting often permits readily available, less costly equipment. Used input output fuses surge sensitive components such variable speed drives rectifiers, fast acting KLNR/KLSR fuses prevent opening expensive semiconductor fuses protecting individual components.
Easy
200,000 A.I.R. rating minimizes need short-circuit calculations.
Dimensions
Refer FLNR_ID KLNR dimensions FLSR_ID KLSR dimensions.
Specifications
Voltage Ratings: Volts (KLNR); Volts (KLSR) Volts 600A KLNR); Volts KLSR); Volts 600A KLSR). 200,000 amperes symmetrical 20,000 amperes amperes. Standard 248-12, Class Listed (File E81895) Certified (File LR29862) Littelfuse self-certified
Ampere Ratings
terrupting Ratings: Ampere Range: Approvals:
Example part number (series amperage): KLNR
Recommended Fuse Blocks
LR250 series (for KLNR series fuses) LR600 series (for KLSR series fuses) Refer Blocks Holders section this catalog additional information.
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2005 Littelfuse POWR-GARDProducts Catalog
General Purpose Fuses
KLNR/KLSR Class Fuses
250/600 Fast Acting Amperes
KLNR
100A 200A 400A 600A 1000
KLSR
100A 200A 1000 400A 600A
General Purpose Fuses
TIME SECONDS
TIME SECONDS
1000 2000 3000 4000
1000
2000
3000 4000
6000 8000 10000
20000
30000 40000
60000 80000 100000
30000 40000
6000 8000 10000
20000
CURRENT AMPERES
CURRENT AMPERES
KLNR
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000 600A 400A 200A 100A
KLSR
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000
PEAK LET-THRU AMPERES
20000 10000 8000 6000 4000 3000 2000 1000 60000 80000 100000 200000 6000 8000 10000 20000 30000 40000 1000 2000 3000 4000
PEAK LET-THRU AMPERES
20000 100A 10000 8000 6000 4000 3000 2000 1000 60000 80000 100000 200000 6000 8000 10000 20000 30000 40000 1000 2000 3000 4000
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
2005 Littelfuse POWR-GARDProducts Catalog
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60000 80000 100000
600A 400A 200A
General Purpose Fuses
NLN/NLS Class Fuses
250/600 "One-Time" Amperes
However, obtain added benefits time-delay, current-limitation, higher interrupting rating, consider POWR-PRO® FLNR_ID FLSR_ID Indicator® fuses circuits volts. user gets benefits time-delay fuses plus added benefits indicating fuse that shows when opened. Complete information these fuses found POWR-PRO fuse section this catalog. circuits volts, FLNR fuses this section catalog.
General Purpose Fuses
Applications
General purpose residential commercial circuits with little motor load. Resistive heating loads.
Economical
applications where lowest initial cost major consideration.
Safety
50,000 A.I.R., Class Adequate interrupting capacity residences many smaller facilities. NOTE: NLKP series fuses have limited interrupting rating should used only where available short-circuit current known less than fuse interrupting rating. Where available fault current unknown, where exceeds NLN/NLS interrupting rating, where increase future, 200,000 ampere interrupting rating Littelfuse POWR-PRO FLNR_ID/FLSR_ID Indicator fuses FLNR/FLSR series fuses provide superior protection motor general purpose circuits containing inductive loads.
series fuses provide cost protection general purpose feeder branch circuits when available short-circuit currents less than 50,000 amperes. They replace Class fuses which have only 10,000 ampere interrupting rating. They suitable many residential smaller commercial industrial applications. NLKP series fuses Canadian "Code" fuses specifically designed meet Canadian Electrical Code Type fuse requirements residential use. They have 10,000 ampere interrupting rating.
Specifications
Voltage Ratings: Volts Volts Volts Volts Volts (NLN, NLKP) (NLS) (NLN) (NLS 60A) (NLS 30A) (NLS 600A) Volts (NLS (NLS 200A) 50,000 amperes symmetrical (NLN/NLS) 10,000 amperes (NLKP) 20,000 amperes (NLN/NLS 60A) 50,000 amperes (NLN/NLS 600A) amperes (NLN/NLS) amperes (NLKP) NLN/NLS: Standard 248-9, Class Listed (File E81895) Certified (File LR29862)** **Excludes 15-60A NLKP: Standard 248-6, Class Listed (File E81895) Certified (File LR29865) Meets "Type requirements
Ampere Ratings
Interrupting Ratings:
NLKP series available only those amperages preceded asterisk. Example part number (series amperage):
Recommended Fuse Blocks
LH250 series (for NLKP series fuses) LH600 series (for series fuses) Refer Blocks Holders section this catalog additional information.
Ampere Range: Approvals:
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2005 Littelfuse POWR-GARDProducts Catalog
General Purpose Fuses
NLN/NLS Class Fuses
250/600 "One-Time" Amperes
FIG. FIG. Dimensions Inches parentheses) (50.8) (127.0) (76.2) (139.7) (149.2) (200.0) (181.0) (244.5) (219.1) (295.3) (263.5) (339.7)
General Purpose Fuses
Amperes
Refer Fig.
Series NLKP NLKP
(12.7) (19.1) (19.1)
(12.7) (15.9) (15.9) (15.9)
(14.3) (20.6) (20.6) (27.0)
(3.2) (3.2) (4.8) (4.8)
(19.1) (19.1)
(33.3) (39.7) (47.6) (53.2) (61.1) (73.0) (73.0) 37/16 (87.3)
(25.4) (25.4) (31.8) (38.1) (44.5) (50.8) (63.5) (63.5) (76.2)
(25.4) (25.4) (34.9) (34.9) (47.6) (47.6) (57.2) (57.2)
(27.0) (33.3)
(39.7) (46.8) (53.2) (65.9) (65.9) (78.6)
(28.6) (28.6) (41.3) (41.3) (50.8) (50.8)
(6.4) (6.4) (6.4) (6.4)
200A
200A
400A
100A
600A
1000
1000
TIME SECONDS
TIME SECONDS
1000 2000 3000 4000 6000 10000 8000 20000 30000 40000 60000 100000 80000
100A
400A
600A 1000
2000
3000
4000
6000
10000 8000
20000
30000
40000
60000
100000 80000
CURRENT AMPERES
CURRENT AMPERES
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General Purpose Fuses
RLN/RLS Class Fuses
250/600 Renewable Amperes
increasing automation, which makes downtime very expensive, have greatly reduced eliminated cost savings attributed renewable fuses. recommend POWR-PRO® FLSR_ID series Indicator® fuses circuits between volts FLNR_ID series circuits volts below. Complete information POWR-PRO Indicator fuses found POWR-PRO fuse section this catalog. FLNR fuses this section catalog.
General Purpose Fuses
Cost Considerations
When comparing cost using renewable fuses with cost other fuses, labor required replacing links cost additional downtime should included.
Cautions
Renewable fuses should only used where short-circuit currents known less than 10,000 amperes, where correct replacement open links assured. After disassembly fuse, examine carefully. Discard fuses which show evidence weakened tube damaged components. Remove link residue from fuse tube. Carefully clean contact surfaces, remove metal spatter from surfaces. Install proper rated fuse link tighten connections securely. Visually examine fuses correct alignment blades. Littelfuse RLN/RLS series renewable fuses quality product that have traditionally been used provide cost protection general purpose feeder branch circuits where available short-circuit currents exceed 10,000 amperes. However, increased levels available fault current possibility that renewable fuses improperly renewed potential safety hazard. addition, escalating labor costs
Dimensions
dimensions, please refer series dimensions series dimensions.
Specifications
Voltage Ratings: terrupting Ratings: Ampere Range: Approvals: Volts (RLN); Volts (RLS) 10,000 amperes symmetrical amperes Standard 248-6, Class Listed (File E81895) Certified (File LR29862) order, specify (250V) (600V) plus ampere rating.
Ampere Ratings
12** 225* 250* 300* 350* 400* 450* 500* 600*
FUSE LINKS:
*These ampere ratings require links fuse. **RLS Only. Example part number (series amperage):
Recommended Fuse Blocks
LH250 series (for series fuses) LH600 series (for series fuses) Refer Blocks Holders section this catalog additional information.
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General Purpose Fuses
Class Fuses
Fast Acting Amperes
Space Saving
fuse characteristics similar KLNR/KLSR fast acting Class fuses, dimensionally much smaller.
Safety
General Purpose Fuses 200,000 A.I.R. Reliable interruption overcurrents 200,000 amperes. Extremely current-limiting Stops damaging short-circuit current faster than mechanical protective device. Fast acting Provides fast acting protection equipment such variable speed drives, rectifiers other equipment containing surge sensitive components.
Longer Equipment Life
Current-limiting design reduces damage equipment caused heating magnetic effects short-circuit currents.
Economical
Extremely current-limiting design often permits readily available, less costly equipment. Manufacturers equipment containing dual voltage devices simplify manufacturing reduce inventory standardizing volt fuses Class fuse blocks voltage ratings. series fuses provide space saving, fast acting overload shortcircuit protection non-inductive loads. When used motors other inductive loads, ampere rating series fuses must increased prevent nuisance opening in-rush currents. such applications, fuses provide only short-circuit protection. Consider using Littelfuse POWR-PRO® JTD_ID series time-delay fuses such circuits.
Easy
200,000 A.I.R. rating minimizes need short-circuit calculations. NOTE: Littelfuse fuses time-delay fuses. applications where short-duration surges spikes cause nuisance fuse opening, consider Littelfuse POWR-PRO JTD_ID series time-delay fuses.
Applications
General purpose circuits with little motor load. Resistive loads, such resistance electric heat. Loads requiring fast acting overload protection, such equipment containing solid-state devices.
Specifications
Voltage Ratings: Interrupting Ratings: Ampere Range: Approvals: Volts 200,000 amperes symmetrical amperes Standard 248-8, Class Listed (File E81895) Certified (File LR29862) QPL: Federal Specification WF-1814
Ampere Ratings
Example part number (series amperage):
Recommended Fuse Blocks
LPSJ series, LJ600 series Refer Blocks Holders section this catalog additional information.
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General Purpose Fuses
Class Fuses
Fast Acting Amperes
General Purpose Fuses
Fig.
Fig.
Amperes
Refer Fig.
Dimensions Inches parentheses)
(57.2) (60.3) (66.7) (76.2) (85.7) (95.3)
17/32 (89.7) (108.7) 51/8 (130.2) 527/ (148.4)
(12.7) (15.9) (113.5)
(20.6) (27.0) (117.5) (146.1) (181.0) (203.2)
(25.4) (38.1) (50.8) (63.5)
(19.1) (28.6) (41.3) (50.8)
(94.5)
(7.1) (7.1) (10.3) (13.5)
(3.2) (4.8) (6.4) (9.5)
(136.5) (156.4)
100A
200A
400A
1000
600A
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000 20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000 600A 400A 200A 100A
1000
2000
3000 4000
6000 8000 10000
20000
30000 40000
60000 80000 100000
PEAK LET-THRU AMPERES
TIME SECONDS
CURRENT AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
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General Purpose Fuses
JLLN/JLLS POWR-TClass Fuses
300/600 Fast-Acting 1200 Amperes
Applications
Littelfuse Class fuses used applications that require fastacting protection, such equipment containing variable speed drives, rectifiers, other surge-sensitive components. Main switches containing Class fuses used provide protection individual electric services meter stacks. Molded case circuit breaker load centers Panelboards also will have increased interrupting ratings when "series rated" with Class fuses.
General Purpose Fuses
Features/Benefits
Space-Saving Switch enclosures, fuse pullouts, other equipment using Class fuses usually more compact. Typical three-pole Class fuse blocks require less than panel space required similar Class blocks. Longer Equipment Life Increased Safety Class fuses provide fast, reliable protection against overcurrents 200,000 amperes. Extremely current-limiting design minimizes damaging heating magnetic effects caused short-circuit currents. Optional Mounting Types addition Class dimensions, Littelfuse offers select ratings with board mounting tabs specialty applications. board mount versions Recognized. Contact factory more information. NOTE: JLLN Class volt fuses Listed circuits exceeding volts ground. However, since does include testing volt Class fuses 277/480 volt three-phase bolted faults, Littelfuse does recommend using volt Class fuses where phase-to-phase voltage exceeds volts.
Space saving POWR-T fuses most compact fuses available ratings above amperes less than one-third size comparable Class fuses. When rated accordance with NEC®, POWR-T fuses provide fast acting overload short-circuit protection non-inductive circuits equipment. Used inductive circuits, ampere rating POWR-T fuses must increased prevent opening in-rush currents. such instances, POWR-T fuses provide only short-circuit protection.
Specifications
Voltage Ratings: Volts (JLLN); Volts (JLLS) Volts (JLLN 30A) Volts (JLLN 60A) Volts (JLLN 1200A) Volts (JLLS) 200,000 amperes symmetrical 20,000 amperes (JLLN 1200A) (JLLS 1200A) 1200 amperes Standard 248-15, Class Listed (File E81895): JLLN/JLLS 800A) Recognized (File E71611): JLLS (900 1200A) Certified (File LR29862): JLLN/JLLS 600A) Listed (File E81895): JLLN (110 1200A) Littelfuse self-certified: JLLN 1-60A JLLS 1200A)
Ampere Ratings
900* 1000 1100 1200
Interrupting Ratings:
Ampere Range: Approvals:
JLLS only Example part number (series amperage): JLLS Note: Contact factory RoHS compliant Class fuses.
Recommended Fuse Blocks
LT300 series (for JLLN series fuses) LT600 series (for JLLS series fuses) LSCR002 (for JLLN/JLLS 700-1200A fuses) Refer Blocks Holders section this catalog additional information.
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General Purpose Fuses
JLLN/JLLS POWR-TClass Fuses
300/600 Fast Acting 1200 Amperes
General Purpose Fuses
Fig.
Fig.
Fig.
Amperes 1200
Refer Fig.
Series JLLN JLLS JLLN JLLS JLLN JLLS JLLN JLLS JLLN JLLS JLLN JLLS JLLN JLLS JLLN JLLS
Dimensions Inches parentheses) (22.2) (22.2) (39.7) (75.0)
(20.6) (59.9) (39.7)
(7.1) (7.1) (7.1) (10.3)
(10.3) (14.3) (14.3)
(1.6) (21.4) (41.7) (21.4) (21.0)
(27.8)
(38.1)
(25.4)
(54.8)
(19.1) (19.1)
(20.6) (20.6)
(7.1) (7.1) (8.7) (8.7) (10.3) (10.3) (12.3) (12.3) (13.9) (13.9) (15.5)
(3.2) (3.2) (4.8) (4.8)
(61.9) (82.6) (69.9) (92.1)
(42.9) (63.5) 127/ (46.8) (69.1)
(22.2) (22.2)
(27.0) (27.0) (33.3) (40.5)
(42.1)
(25.4) (25.4) (31.8) (31.8) (44.5) (44.5) (50.8) (50.8)
(6.4) (6.4) (7.9) (7.9)
(43.7)
(77.8)
(51.6)
(40.5)
(22.2) (22.2) (26.2)
(101.2) (85.7) (109.9) (101.6) 5.27 (133.9)
(75.0) 7/32 (64.3) (80.6)
(52.4) (52.4) (63.5) (63.5) 2.63 (66.8)
(44.8)
(9.5) (9.5) (11.1)
(47.2)
(64.3)
3.80 (96.5)
2.30 (58.4)
0.67 (15.5)
0.44 (11.2)
Current-Limiting Effects JLLN (300V) fuses
Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Current Various fuse ratings 1,000 1,100 1,230 1,300 1,330 1,430 1,500 1,700 1,850 2,000 2,300 2,600 1,000 1,100 1,250 1,300 1,475 1,575 1,600 1,750 1,900 2,100 2,250 2,600 2,800 100A 1,100 1,400 1,600 1,800 1,950 2,050 2,150 2,300 2,400 2,700 2,800 3,150 3,600 3,900 200A 1,650 2,100 2,400 2,700 2,900 3,100 3,300 3,500 3,700 4,000 4,400 4,800 5,500 6,000 400A 3,500 4,400 5,000 5,500 6,000 6,400 6,750 7,000 7,500 8,000 9,000 9,750 600A 4,000 5,100 5,900 6,500 7,000 7,500 7,750 8,000 8,750 9,500 800A 5,000 6,750 7,750 8,750 9,500 1200A 5,000 8,250 10,000 11,000 12,000
Current-Limiting Effects JLLS (600V) fuses
Short Circuit Current* 5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 50,000 60,000 80,000 100,000 150,000 200,000 Apparent Symmetrical Current Various fuse ratings 1,050 1,150 1,300 1,375 1,400 1,425 1,600 1,650 1,825 2,000 2,250 2,450 1,225 1,525 1,700 1,900 2,050 2,150 2,250 2,400 2,450 2,625 2,800 3,100 3,400 3,800 100A 1,400 1,700 2,000 2,200 2,400 2,450 2,600 2,800 2,900 3,100 3,400 3,700 4,300 4,600 200A 2,850 3,600 4,050 4,450 4,800 5,000 5,100 5,200 6,000 6,250 7,000 7,250 8,500 9,000 400A 4,600 6,000 6,600 7,250 8,000 8,250 8,500 8,700 9,500 600A 5,000 8,500 9,750 800A 5,000 9,400 1200A 5,000 10,000
10,500 13,000
10,500 11,000 14,750 11,500 12,500 15,500 12,000 13,750 16,500 13,000 14,000 17,000 14,000 14,750 18,000 14,500 16,000 20,000
10,000 12,500 10,500 13,500 11,000 14,000 12,000 15,000 12,500 16,000
10,000 15,500 17,300 21,000 11,000 17,000 18,750 23,000 12,000 18,000 20,000 25,000 13,000 21,000 23,000 28,500 15,000 23,000 25,000 31,000
10,500 14,000 17,500 11,500 15,000 18,500
11,000 13,000 17,500 22,000 12,000 14,500 19,500 24,000
Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
Prospective Symmetrical Amperes Short-Circuit Current Note: Data Derived from Peak Let-Thru Curves
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General Purpose Fuses
JLLN/JLLS POWR-TClass Fuses
300/600 Fast Acting 1200 Amperes
JLLN
1200A 100A 200A 400A 600A 800A 1000
JLLS
100A 200A 400A 600A 1000 800A
General Purpose Fuses
TIME SECONDS
60000 80000 100000
1000
2000
3000 4000
6000 8000 10000
20000
30000 40000
TIME SECONDS
CURRENT AMPERES
CURRENT AMPERES
JLLN
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000 20000 200A 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000 100A
JLLS
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000
PEAK LET-THRU AMPERES
1200A 800A 600A 400A
PEAK LET-THRU AMPERES
20000 10000 8000 6000 4000 3000 2000 1000 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
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60000 80000 100000 800A 600A 400A 200A 100A
1000
2000
3000 4000
6000 8000 10000
20000
30000 40000
General Purpose Fuses
Class Fuses
VAC, Medium Time-Delay Amperes
Amperes General Purpose Fuses
Refer Fig.
Dimensions Inches parentheses) (33.3) (35.7) (41.3) (57.2)
(9.5) (9.5) (9.5) (9.5)
(7.1) (7.1) (7.1) (12.7)
(10.3) (10.3) (10.3) (10.3)
Fig.
1/2A
1000
TIME SECONDS
compact design Littelfuse series Class fuses offers cost effective, space saving alternative other fuse classes. unique design series provides superior time-delay characteristics over competitive products, which increase system reliability minimize downtime. Class fuses meet requirements branch circuit protection vary length prevent over-fusing when used with appropriate Class fuse block.
1000 2000
Features/Benefits
Current-limiting Reduces damage equipment caused heating magnetic effects short-circuit currents. 100,000 A.I.R. Reliable interruption overcurrents 100,000 amperes. Time-Delay Allows fuses sized closer actual equipment requirements reduce downtime caused power surges.
Note: applications where greater time-delay required, where ratings exceed amperes, consider selecting Littelfuse time-delay Class RK1, RK5, fuses.
CURRENT AMPERES
Specifications
Volts 20A) Volts 60A) Interrupting Ratings: 100,000 amperes symmetrical Ampere Range: amperes Approvals: Standard 248-5, Class Listed (File E81895) Certified (File LR29862) QPL: Federal Specification WF-1814 Voltage Ratings:
Ampere Ratings
Example part number (series amperage):
Recommended Fuse Blocks
LG300 series; L300G30 (for fuses) Refer Blocks Holders section this catalog additional information.
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6000 8000 10000
3000 4000
General Purpose Fuses
Class Class Fuses
1/10 Amperes
Applications
Three types Class fuses, specifically designed protect different types components Motor protection CCMR series; dual-element, time-delay fuses specifically designed protect motor circuits HP**. Small transformer protection (control power transformers) KLDR series, time-delay fuses designed withstand high magnetizing in-rush transformers. General purpose protection equipment requiring fast overload protection KLKR series, fast-acting fuses used protection equipment containing solid-state devices other electronic components requiring fast response overloads.
General Purpose Fuses
Safety
200,000 A.I.R. Reliable interruption overcurrents 200,000 amperes. Extremely current-limiting Reduces damage caused heating magnetic effects short-circuit currents. Stops damaging shortcircuit currents faster than mechanical protective device.
Space Saving
Compared other Listed fuses, Class most currentlimiting fuse design available, rating rating. Because they physically compact, they provide this superior protection fraction space required other fuse classes. example, when 600V three-pole, ampere Class fuse blocks replaced Littelfuse Class fuse blocks, panel mounting space reduced approximately 70%. This especially important when panel contains many fuses protect multiple circuit components. Class fuses smallest 600V, 200,000 A.I.R. fuses approved branch circuit protection.
Economical
Current-limiting design often permits readily available, less costly equipment.
Specifications
Voltage Ratings: Volts Volts (CCMR) Volts (KLDR) Volts (KLKR) 200,000 amperes symmetrical 20,000 amperes CCMR: amperes KLDR: 1/10 amperes KLKR: 1/10 amperes Standard 248-4, Class Listed 1/10 Amps (File E81895) Standard 248, Class Listed 35-60 Amps (File E71611) Certified 1/10 Amps (File LR29862) Littelfuse Self-certified
Recommended Fuse Blocks
LPSC series (for 1/10 -30A) L60030C series (for 1/10 -30A) L60060C series (for CCMR 35-60A) Refer Blocks Holders section this catalog additional information.
Refer POWR-PRO® section additional information.
Interrupting Ratings:
.25" 1.50"
(38.1 (6.4
Ampere Range:
Approvals:
0-30A
.50"
(12.7
.41"
(10.3
.125"
(3.2
35-60A
.850 -.020
Consult Motor Protection Tables Fuseology section specific motor sizing information
1.880 REF.
2005 Littelfuse POWR-GARDProducts Catalog
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General Purpose Fuses
Class Class Fuses
1/10 Amperes CCMR Series
space saving protection motor circuits HP**, recommend Littelfuse POWR-PRO® CCMR series fuses. These fuses only true dual-element time-delay fuses specifically engineered motor branch circuit protection. They provide Type Damage" protection both NEMA-rated more sensitive (International Electrotechnical Commission) type motor circuit components. CCMR series fuses available larger sizes from amperes! other 600V fuse available with this current carrying capacity package this small.
**Consult Motor Protection Tables Fuseology section specific motor sizing information
General Purpose Fuses
more information CCMR series Class fuses, CCMR series pages POWR-PRO section this catalog. 30A: Listed Class 60A: Listed Class
Ampere Ratings
11/4 11/2
31/2 41/2
171/
Example part number (series amperage): CCMR
KLDR Series
KLDR fuses time-delay fuses specifically designed protection control transformers, solenoids similar inductive components with high magnetizing currents during first half-cycle. They closely match most control power transformer characteristics, which permits fuses sized accordance with latest revisions (Industrial Control) (Motor Control Centers). When time delay KLDR fuses adequate carry motor starting current, they provide excellent protection motor branch circuits containing NEMA rated motor controllers contactors.
Ampere Ratings
/100
11/8 11/4 11/2
21/2
Example part number (series amperage): KLDR
KLKR Series
KLKR series Class fuses fast acting fuses intended general purpose branch circuit protection. Their compact size, fast acting overload response, highly currentlimiting design make them ideal equipment control panels. Solid state devices such SCRs other electronic equipment generally require fast acting protection.
Ampere Ratings
Example part number (series amperage): KLKR
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General Purpose Fuses
Class Class Fuses
1/10 Amperes
performance data Littelfuse CCMR series Class fuses, CCMR pages POWR-PRO® section this catalog.
1/2A 1/4A
1/2A
1/8A 2/10A
3/10A 1/2A 6/10A 3/4A
1/10A 1/8A
2/10A 1/4A 3/10A
KLDR
1000
KLKR
1.8A
1/2A
3/4A
1000
General Purpose Fuses
1000
TIME SECONDS
TIME SECONDS
1000 200000
CURRENT AMPERES
CURRENT AMPERES
KLDR
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000
KLKR
1000000 800000 600000 400000 300000 200000 100000 80000 60000 40000 30000
PEAK LET-THRU AMPERES
PEAK LET-THRU AMPERES
20000 10000 8000 6000 4000 3000 2000 1000 60000 80000 100000 200000 6000 8000 10000 20000 30000 40000 1000 2000 3000 4000
20000 10000 8000 6000 4000 3000 2000 1000 60000 80000 100000 6000 8000 10000 20000 30000 40000 1000 2000 3000 4000
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
AVAILABLE FAULT CURRENT SYMMETRICAL AMPERES
2005 Littelfuse POWR-GARDProducts Catalog
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General Purpose Fuses
Plug Fuses
Time-Delay Amperes Edison-base Plug fuses
Fuses dual-element time-delay Edison-base fuses designed motor motor branch circuit protection; also suitable general purpose circuits. replacement purposes only.
General Purpose Fuses
Ampere Ratings
31/2
Fuses medium time-delay Edison-base fuses designed general purpose branch circuit protection. fuses motor protection. replacement purposes only.
Ampere Ratings
Littelfuse Plug fuses provide overcurrent protection general purpose circuits small motor loads. Edison-base Plug fuses (TOO series) feature metal threads similar incandescent lamp bases. Type Plug fuses (SOO series) utilize nonmetallic threaded base must used with Type adapters (SAO series). National Electrical Code permits Edison-base Plug fuses used replacement purposes only. Type fuses adapters prevent shunting open fuses over-fusing. Adapter Rating 11/4 Accepts Fuse Ratings: 11/8, 11/4 /10, /10, /10, 31/2, 41/2, 31/2, 61/4 only Other Fuse Ratings Which 11/4 /10, 31/2
Type Plug fuses
Fuses dual-element time-delay Type fuses designed motor motor branch circuit protection; also suitable general purpose circuits.
Ampere Ratings
11/8
Fuses medium time-delay Type fuses general purpose branch circuit protection.
Ampere Ratings
Specifications
Voltage Rating: Interrupting Rating: Approvals: 10,000 amperes symmetrical Listed Plug Fuses, Standard 248-11
Note: Article 240-V additional information Plug fuse applications.
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Midget Electronic Fuses
Midget Fuses Electronic Fuses Automotive Fuses
50-54 55-59 60-62
2005 Littelfuse POWR-GARDProducts Catalog
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Midget Electronic Fuses
Midget Fuses
Supplementary Overcurrent Protection
Fast-acting, high-interrupting capacity, current-limiting type fuse. Especially suited control circuits, street lighting, H.I.D. lighting, computers, other applications without high in-rush currents.
Ampere Ratings:
Fuses
Fast-Acting
Voltage Rating:
Midget Electronic Fuses
Volts Volts Interrupting Rating: Listed 100,000 amperes symmetrical (Capable 200,000 amperes) 11/2" Dimensions: Example part number (series amperage):
Approvals:
Standard 248-14 Listed 3/10-30A (File E10480) Certified 3/10-30A (File LR29862) Versions available meet MIL-F-5160/60, F60C: Contact Factory.
KLKD Fuses
Fast-Acting VAC/DC
Fast acting, high interrupting capacity, currentlimiting type fuse. Especially suited control circuits, street lighting, H.I.D. lighting, computers, other applications.
Ampere Ratings:
Voltage Rating: Volts AC/DC Interrupting Rating: 100,000 amperes symmetrical; 10,000 amperes 11/2" Dimensions: Example part number (series amperage): KLKD
Approvals:
Standard 248-14 Listed 3/10-30A (File E10480) Certified 3/10-30A (File LR29862)
Fuses
Time-Delay
volt time-delay fuses protect control circuit transformers, solenoids, other circuits with high in-rush currents. Excellent supplemental protection small motors. motor branch circuit protection, Refer Class fuses.
Ampere Ratings: /100
Volts Volts self-certified 10KA Interrupting Rating: 10,000 amperes symmetrical. 11/2" Dimensions: Example part number (series amperage):
Voltage Rating:
11/8 11/2
Approvals:
Standard 248-14 Listed (File E10480) Certified (File LR29862)
Recommended Fuse Blocks
L60030M LPSM series. Refer Blocks Holders section this catalog additional information.
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Midget Electronic Fuses
Midget Fuses
Supplementary Overcurrent Protection
These volt time-delay fuses provide excellent supplemental protection control power transformers, solenoids, circuits with high inrush currents. volt ratings permit volt circuits. fuses also provide supplemental protection small motors. motor branch circuit protection, refer Class fuses.
Ampere Ratings: /100
Fuses
Time-Delay
Volts Volts self-certified 10KA Interrupting Rating: 10,000 amperes symmetrical /32" 1/2" Dimensions: Example part number (series amperage):
Voltage Rating:
11/8 11/4
Midget Electronic Fuses
Approvals:
Standard 248-14 Listed (File E10480) Certified (File LR29862)
Fuses
Fast-Acting
Fiber tube, volt fuses provide low-cost protection military applications control circuits.
Ampere Ratings: Approvals:
Voltage Rating: Volts Interrupting Rating: 10,000 amperes symmetrical /32" 11/2" Dimensions: Example part number (series amperage):
Standard 248-14 Listed (File E10480) Certified (File LR29862) Versions available meet MIL-F-15160/9, F09A: Contact Factory
Fuses
Fast-Acting 125/250
Laminated tube fuses lowest price midget fuse. They suitable control circuit instrument protection locations.
Ampere Ratings: 11/2 Approvals:
Volts amperes; Volts amperes Interrupting Rating: 10,000 amperes symmetrical /32" 11/2" Dimensions: Example part number (series amperage): Voltage Ratings:
Standard 248-14 Listed (File E10480) Certified (File LR29862)
Recommended Fuse Blocks
L60030M LPSM series. Refer Blocks Holders section this catalog additional information.
2005 Littelfuse POWR-GARDProducts Catalog
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Midget Electronic Fuses
Midget Fuses
Supplementary Overcurrent Protection
fuses long contrast other midget fuses which They provide space saving, cost protection street lighting, metering, control electronic circuits.
Ampere Ratings:
Fuses
Fast-Acting 250/600
Volts amperes; Volts amperes Interrupting Rating: 10,000 amperes symmetrical Dimensions: Example part number (series amperage): Voltage Rating:
Midget Electronic Fuses
Approvals:
Standard 248-14 Listed Amps (File E10480) Certified Amps (File LR29862)
Fuses
Time-Delay
fuses volt, pin-indicating time-delay fuses protection control circuit transformers, solenoids, other circuits with high in-rush currents. Metal indicating pops-out when fuse opens, giving visual indication blown fuse. fuses conjunction with special fuseblocks operate mechanical signal switches energize alarm circuits. Fuses rated amperes above have dual-tube construction.
Ampere Ratings: /100
Voltage Rating: Volts Interrupting Rating: 10,000 amperes symmetrical Dimensions: Example part number (series amperage): Note: Dual tube construction
11/8 11/4 11/2
Approvals:
Standard 248-14 Listed (File E10480) Certification Pending
Recommended Fuse Blocks
L60030M LPSM series. Refer Blocks Holders section this catalog additional information.
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2005 Littelfuse POWR-GARDProducts Catalog
Midget Electronic Fuses
Midget Fuses
Supplementary Overcurrent Protection
Littelfuse series designed protect gaseous vapor fixtures, ballasts, other electronic lighting circuits. same physical size Littelfuse BLS, more time-delay handle transient in-rush currents.
Ampere Ratings:
Series Fuses
Recommended Fuse Blocks: L60030M Series. Refer Blocks Holders section this catalog additional information. Ordering Information: Example catalog number: KLQ005 Example system number: 0KLQ005.T
Voltage Rating: Interrupting Rating: 10,000 amperes Approvals: Standard 248-14 Listed (File E10480) Dimensions:
Midget Electronic Fuses
Series Fuses
Littelfuse series designed specifically protection multimeters. 1000 VAC/ rating also makes ideal variety other applications.
Ordering Information Example catalog number: FLU011 Example system number: 0FLU011.T
Voltage Rating: 1000 VAC/VDC /100 10kA Interrupting Rating: 11A: 20kA Ampere Range: /100 Approvals: Recognized under components program. (File E10480) Certified (File LR29862) /100 /32" Dimensions: 11A: /32" 11/2"
LNNB "Dummy" Fuse
Also known "neutral", LNNB actually fuse. same physical size standard Midget fuse. LNNB001 hollow body design with standard fuse clips. LNNB002 solid body design with LEB/ series inline style fuse holders.
Specifications
Dimensions:
Ordering Information
Example catalog number: LNNB001 Example system number: LNNB0001Z Example catalog number: LNNB002 Example system number: LNNB0002Z
LNNB001
LNNB002
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Midget Electronic Fuses
TIME SECONDS
1000 1000
TIME SECONDS
1/10A 15/100A
1/8A
1/4A
1000
1/2A 1/2A
2/10A 1/4A 3/10A 1/2A
Midget Fuses
CURRENT AMPERES
Supplementary Overcurrent Protection
CURRENT AMPERES
1000
3/4A 1/2A 1/2A 1/2A
TIME SECONDS
1000
KLKD
TIME SECONDS
1000
Midget Electronic Fuses
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1000
1/8A 2/10A 1/4A 3/10A 1/2A
CURRENT AMPERES
CURRENT AMPERES
1000
3/4A 1/2A 1/2A 1/2A
2000
3000 4000
2005 Littelfuse POWR-GARDProducts Catalog
6000 8000 10000
Midget Electronic Fuses
Electronic Fuses
3AG/3AB Type 312/318 Series
Fast Acting Fuse
Designed fast acting protection electronic equipment appliances. "standard" fast acting, glass tube fuse.
Ampere Ratings:
250V: 1/100 10A. 32V: 35A. (6.4 31.8mm) Dimensions: Order series without leads. Example part number (series amperage): 312.375 Note: fuses with axial leads, request series. Voltage Rating: order "Dummy" fuse request part number 310033.
/100 /100
0.175
11/2
Approvals: Standard 248-14, Listed 1/100 Amps Listed Amps Standard 275. Certified through Amps. Ampere Ratings:
Midget Electronic Fuses
314/324 Series
Fast Acting Fuse
Similar series, ceramic tube permits additional ampere ratings: volt ratings through amps.
Voltage Rating: 250V: 11/4" (6.4 31.8mm) Dimensions: Order series without leads. Example part number (series amperage): 324.375 Note: fuses with axial leads, request series.
Approvals: Standard 248-14, Listed Certified Amps. Recognized under Components Program Recognized under Component Acceptance Program Amps. Approved MITI from Amps.
313/315 Series
SLO-BLO Fuse
series fuses have time-delay overload range, which provides superior protection inductive loads such motors, transformers, solenoids.
Ampere Ratings: /100 /100
Voltage Rating: 250V: 1/100 32V: 30A. 11/4" (6.4 31.8mm) Dimensions: Order series without leads. Example part number (series amperage): 313.500 Note: fuses with axial leads, request series. order "Dummy" fuse request part number 310033.
/100 0.175
11/4
Approvals: Standard 248-14, Listed Certified /100 Amps. Recognized under Components Program Recognized under Component Acceptance Program Amps. MITI approved Amps.
326/325 Series
SLO-BLO Fuse
series fuse time-delay similar series, ceramic body permits higher voltage ratings ampere sizes faster opening short-circuits.
Ampere Ratings: /100 /100 0.175
250V: 1/100 20A. 125V: 30A. 11/4" (6.4 31.8mm) Dimensions: Order series without leads. Example part number (series amperage): 326012 Note: fuses with axial leads, request series. Voltage Rating:
11/4
Approvals: Standard 248-14, Listed Amps. Recognized under Components Program 12-30 Amps. Certified Amps.
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Midget Electronic Fuses
Electronic Fuses
Indicating Types 229/230 Series
SLO-BLO® Indicating Fuse
indicating fuses instantly identify themselves upon opening showing discoloration their glass bodies. Guesswork time consuming circuit testing eliminated. This unique design offers same quality performance characteristics standard fuse design.
Ampere Ratings: .350
Midget Electronic Fuses
Voltage Rating: 250V: 125V: Dimensions: .177" .57" (4.5 14.5mm) fuses with axial leads, request 230_S series. Order 229_S series without leads. Example part number (series amperage): 22902.5S
Approvals: Standard 248-14, Listed Certified Amps. Recognized under Components Program Recognized under Component Acceptance Program Amps.
Series
SLO-BLO Indicating Fuse
indicating fuses instantly identify themselves upon opening showing discoloration their glass bodies. Guesswork time consuming circuit testing eliminated. This unique design offers same quality performance characteristics standard fuse design.
Ampere Ratings:
11/2
Voltage Rating: 250V: 32V: 10A. 11/4": (6.4 31.8mm) Dimensions: Example part number (series plus amperage, followed "ID"): 313007ID
Approvals: Standard 248-14, Listed Certified Amps. Recognized under Components Program Recognized under Component Acceptance Program.
Series (Type
20mm SLO-BLO® Fuse
Time-delay protection electronic equipment appliances when fuses International Standards required. Replacement fuses foreign equipment.
Ampere Ratings: .200 .250 .315 .400 .500 .630 .800 1.25 3.15
Voltage Rating: 250V Design Standards: Meets 60127-2, Sheet Specification Time fuses. Dimensions: 20mm in.) Example part number (series amperage): 215.315 Note: fuses with axial leads "XE" extension part number. Example 215.630XE
*Available included International Standards. Interrupting Capacity: 1500A Approvals: Recognized under Components Program Recognized under Component Acceptance Program. SEMKO, VDE, approved Amps. MITI approved Amps.
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Midget Electronic Fuses
Electronic Fuses
20mm Type Series (Type
20mm Fast-Acting Fuse
Fast acting protection electronic equipment appliances when fuses International Standards required. Replacement fuse foreign equipment.
Ampere Ratings: .050 .063 .080 .100 .125 .160 .200 .250 .315 .400 .500 .630 .800 1.25 3.15
Voltage Rating: 250V Design Standards: Meets 60127-2, Sheet Specification Fast-Acting Fuses. Dimensions: 20mm in.) Example part number (series amperage): 216.200 Note: fuses with axial leads "XE" extension part number. Example 216.630XE
*Available included International Standards. Interrupting Capacity: 1500A Approvals: Recognized under Components Program Recognized under Component Acceptance Program. SEMKO approved through Amps. approved Amps.
Midget Electronic Fuses
Series (Type
20mm Fast-Acting Fuse
Fast-acting protection electronic equipment appliances when fuses International Standards required. Replacement fuse foreign equipment.
Ampere Ratings: .032 .080 .200 .500 1.25 3.15 .040 .100 .250 .630 .050 .125 .315 .800 .063 .160 .400 *Available included International Standards. Interrupting Capacity: rated current, whichever greater. Approvals: Recognized under Components Program Recognized under Component Acceptance Program. SEMKO approved through Amps. approved Amps.
Voltage Rating: 250V Dimensions: 20mm in.) Example part number (series amperage): 217.050 Design Standards: Meets 60127-2, Sheet Specification Fast Acting Fuses. Note: fuses with axial leads "XE" extension part number. Example 217.630XE
Series (Type
20mm SLO-BLO® Fuse
Time-delay protection electronic equipment appliances when fuses International Standards required. Replacement fuses foreign equipment.
Ampere Ratings: .032 .080 .200 .500 1.25 3.15 .040 .100 .250 .630 .050 .125 .315 .800 .063 .160 .400 *Available included International Standards. Interrupting Capacity: rated current, whichever greater. Approvals: Recognized under Components Program Recognized under Component Acceptance Program. SEMKO approved through Amps. approved Amps.
Voltage Rating: 250V Dimensions: 20mm in.) Example part number (series amperage): 218.630 Design Standards: Meets 60127-2, Sheet Specification Time Fuses. Note: fuses with axial leads "XE" extension part number. Example 218.630XE
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Midget Electronic Fuses
Electronic Fuses
20mm Type Series
20mm Fast-Acting fuse
20mm fuses designed standards. Fast Acting protection electronic equipment appliances.
Ampere Ratings:
Voltage Rating: 250V: 1/10 125V: Dimensions: 20mm in.) Example part number (series amperage): 235.600 Note: fuses with axial leads "XE" extension part number. Example 235.600XE
Midget Electronic Fuses
11/4
Approvals: Standard 248-14, Listed Certified. MITI approved Amps.
Series
20mm SLO-BLO® fuse
20mm fuses designed standards. protection electronic equipment appliances.
Ampere Ratings:
Voltage Rating: 250V: 125V: Dimensions: 20mm in.) Example part number (series amperage): 239.400 Note: fuses with axial leads "XE" extension part number. Example 239.600XE
11/4
Approvals: Standard 248-14, Listed Certified. MITI approved Amps.
225/224 Series
Fast-Acting fuse
Fast acting performance 312, fuses less than one-third space. protection electronic equipment appliances.
Ampere Ratings:
Voltage Rating: 250V: 1/10 125V: Dimensions: Fuse .177" .57" (4.5 14.5mm) Example part number (series amperage): 224.500 Note: fuses with axial leads, request series number 224. Order series without leads.
11/2
Approvals: Standard 248-14, Listed Certified. series approved MITI Amps.
229/230 Series
SLO-BLO® fuse
series fuses have time-delay series fuses less than one-third space. They provide superior protection inductive loads such motors, transformers, solenoids. whenever time-delay fuses indicated.
Ampere Ratings:
Voltage Rating: 250V: 31/2 125V: Dimensions: Fuse .177" .57" (4.5 14.5mm) Example part number (series amperage): 229.375 Note: fuses with axial leads, request series number 230. Order series without leads.
Approvals: Standard 248-14, Listed Certified Amps. Recognized under Components Program Recognized under Component Acceptance Program Amps.
www.littelfuse.com
2005 Littelfuse POWR-GARDProducts Catalog
Midget Electronic Fuses
Electronic Fuses
Subminiature Type 272/278 Series
Fast-Acting Microfuse Fast acting Microfuses protection printed circuit boards similar equipment. Voltage Rating: 125V Example part number (series amperage): 27201.5 Note: series leads Ampere Ratings:
/100
.235"
.29"
.17" .10"
Approvals: Recognized under Components Program Recognized under Component Acceptance Program. data series High Reliability (Hi-Rel) microfuses, request Electronic Catalog.
Midget Electronic Fuses
273/279 Series
Fast-Acting Microfuse
Similar series, except transparent visual indication fuse status. Voltage Rating: 125V Example part number (series amperage): 273002 Note: series leads
.25" .35" .17" .10"
Ampere Ratings:
/100
11/2
Approvals: Recognized under Components Program Recognized under Component Acceptance Program.
251/252 Series
Fast-Acting Pico®II Fuse
Subminiature fuse soldered mounting printed circuit boards. Available tape reel automatic insertion.
Ampere Ratings:
Approvals: Recognized under Components Program Recognized under Component Acceptance Program. Order series radial leads. order PICO fuses with ampere ratings color-coded, order series axial leads radial leads. data series High Reliability (Hi-Rel) Picofuses, request Electronic Catalog. information PICO 250V fast-acting fuses, contact factory.
Voltage Rating: 125V: 10A; 32V: 15A. Example part number (series amperage): 251.125
1.47"
.28"
1.47"
EPOXY COATING
.095" DIA.
Series
SLO-BLO® Pico®II Fuse
Subminiature time-delay fuse soldered mounting printed circuit boards. Available tape reel automatic insertion. Request bulletin PB-1027 further information.
Ampere Ratings:
11/2
Voltage Rating: 125V Example part number (series amperage): 473005
1.47" .28" 1.47"
Approvals: Recognized under Components Program Recognized under Component Acceptance Program. MITI approved Amp.
EPOXY COATING
.095" DIA.
2005 Littelfuse POWR-GARDProducts Catalog
www.littelfuse.com
Midget Electronic Fuses
Automotive Fuses
Blade Type Series
Fast-Acting Fuse
voltage fuse automotive electronic applications.
Ampere Ratings/Dimensions:
Ampere Rating Length Diameter
Voltage Rating: AC/DC Approvals: Listed under Standard #275. Society Automotive Engineers (SAE) J554. Example part number (series amperage): SFE006
11/16" 11/4"
Midget Electronic Fuses
ATO® /257 Series
Fast-Acting Fuse
series fuse voltage blade type fu
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