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Sensing Control
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Sensing Control Honeywell Inc. West Spring Street Freeport, 61032 www.honeywell.com/sensing
Limit Enclosed Switches Explosion-Proof Switches
MICRO SWITCH explosion-proof switches contain cool escaping gases that otherwise could cause explosion outside switch. Most them UL-CSA listed. Appropriate file reference numbers copies card file available from your local Branch Office MICRO SWITCH, Freeport, Illinois. NEMA TYPE CLASS FLAMMABLE GASES VAPORS Type enclosures indoors locations classified Class Groups National Electrical Code. Group (only switches noted order guides include this listing). Atmospheres containing hydrogen manufactured gas. Group atmospheres containing diethyl ether, ethylene, cyclopropane. Group Atmospheres containing gasoline, hexane, butane, naptha, propane, acetone, toluene, isoprene. DIVISION Locations which hazardous agents present under normal operating conditions. DIVISION Locations which hazardous agents present only case accidental rupture breakdown. MICRO SWITCH listings covered Division also covered same groups Division
Switches described following pages, except noted below, listed follows:
NEMA TYPE CLASS COMBUSTIBLE DUSTS Type enclosures indoor locations classified Class Groups defined National Electrical Code. Group Atmospheres containing metal dust. Group Atmospheres containing carbon black, coal dust coke dust. Group Atmospheres containing flour, starch, grain dust.
A112
Honeywell
Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
Limit Enclosed Switches Weather-Sealed Explosion-Proof Switches
Series
FEATURES Sealing applicable portions NEMA Tracking interchangeability with MICRO SWITCH ML-E1 HDLS. Variety heads non-sparking actuators. Field adjustability matches switch application. Momentary, maintained, random sequence, center neutral action. amps continuous carry electrical rating. Choice silver gold contacts. inch conduit opening. Listed, file #E61730 Certified, file #LR57327 Internal grounding screw. NEMA standards: listed certified: Class Div. Groups Class Div. Groups
Limit/Enclosed
switches either indoors outdoors hazardous atmospheres they completely sealed explosion-proof device. Mounting hole location tracking same long established MICRO SWITCH ML-E1 explosion-proof switch. optional mounting plate provides same tracking mounting standard HDLS. majority HDLS operating heads circuitry options available LSX. Standard HDLS levers used, because explosion-proof requirements, only nylon rollers other non-sparking material selected. Plunger whisker types listed order guide non-sparking material.
SEALS Application proven HDLS head seals retained seal LSX. circular cover front easily unscrewed expose switching elements wiring replacement. screwdriver used wrenching lugs extending from front cover allows easy removal tightening. O-ring seal located between housing cover. withstands pressure internal explosion cools exploding gases below kindling temperature explosive atmosphere. Flame paths provided cover-housing threads extended plunger between switch cavity head.
Honeywell
Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
A113
Limit Enclosed Switches Weather-Sealed Explosion-Proof Switches
ORDER
Series
operation, with actuator shaft facing front (label side) switch. actuator (-1A) lever with nylon roller open side. There list price adders double-pole circuitry actuators. (Levers also ordered separately specifying listings shown actuator code description.)
order guide shows option codes which added prefix specify operating head, body circuitry, assembly modifications desired) actuator type. example given below LSXA3K-1A. This explosion-proof switch with standard side rotary momentary-action head (A), single-pole circuitry conduit opening (3K). Since modification codes listed, adjusted both clockwise (CW) counterclockwise (CCW) ORDER GUIDE standard weather-sealed explosion-proof switch. Typical Catalog Listing: Head Code
Body Contacts Circuitry Code Silver Gold plated
Side rotary. Momentary.
Side rotary. differential travel torque. Momentary.
plunger. Momentary.
Side roller plunger. Momentary.
Single-pole, N.O., N.C., conduit.
conduit
Silver Gold plated
Side rotary. differential travel. Momentary.
Side rotary. Maintained contact.
roller plunger. Momentary.
Wobble stick. Momentary. Double-pole, N.O., N.C., conduit. Silver conduit Gold plated SPNC Direct Acting whisker. Momentary. Sequential. Pole operates before Pole (CW, both). conduit. Only Gold plated conduit. Silver Gold plated Only Side rotary. Center neutral. Silver Gold plated
Side rotary. torque. Momentary.
rotary. Momentary.
Side plunger. Momentary.
Side rotary. Sequence operation. Adjustable plunger. Momentary. Adjustable side plunger. Momentary.
Available with Single Pole N.C. Direct Acting contact. Electrical Rating order, body circuitry code.
Center neutral. Pole operates CCW, Pole operates conduit. Gold contacts conduit
A114
Honeywell
Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
Limit Enclosed Switches Weather-Sealed Explosion-Proof Switches
ELECTRICAL RATINGS Same HDLS, page A34. OPERATING CHARACTERISTICS next page. TEMPERATURE RATINGS Same HDLS, page A56.
Series
ENVIRONMENTAL SEAL PERFORMANCE Same HDLS, page A56. TEMPERATURE HIGH TEMPERATURE SEALED next page.
Actuation Direction Modification Code additional cost.) Code. Head/Actuator Orientation Modification Code additional cost.) Code. Side rotary heads assembled with actuator shaft facing front. Roller roller plungers assembled parallel mounting surface. Head assembled with actuator shaft right side. (Optional with head types Head assembled with actuator shaft left side. (Optional with head types Head assembled with actuator shaft back switch. (Optional with head types Roller roller plungers assembled perpendicular mounting surface. (Optional with head type Roller side plunger assembled vertical position. Actuator Code LSZ51 lever roller). LSZ51A lever with nylon roller front side. LSZ51C lever with nylon roller back side. LSZ52C adjustable lever (1.5-3.5 in.) with nylon roller. LSZ52J adjustable lever (1.5-3.5 in.) with nylon roller. LSZ52K adjustable lever (1.5-3.5 in.) with nylon roller. Wobble stick actuator. (Use with head type only.) LSZ54M aluminum actuator. LSZ54 actuator. LSZ55 offset lever roller). LSZ55A offset lever with nylon roller back side. LSZ55C offset lever with nylon roller front side.
Limit/Enclosed
CCW. (Head types
operation. (Optional with head types
operation. (Optional with head types
whisker actuator. (Use with head type only.) long levers, except where noted.
LSZ53S yoke lever with nylon rollers (same side).
LSZ53E yoke lever with nylon roller (one side).
Honeywell
Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
A115
Limit Enclosed Switches Weather-Sealed Explosion-Proof Switches
OPERATING CHARACTERISTICS Rotary actuated switches
Side Rotary Momentary LSXA Standard Pretravel max. LSXP Diff. Travel LSXR Torque LSXH Diff. Torque Maintained Sequence LSXL (Double Pole Only) step step additional 0,45 lbs. 250°F 121°C Center Neutral
Series
Rotary Momentary
LSXN
LSXM (Double Pole Only)
LSXB
Overtravel min. Differential Travel max. Operating Torque max. Operating Temp. Range
Newton meters
SPDT DPDT
SPDT DPDT
SPDT DPDT
SPDT DPDT
SPDT DPDT
0,45 lbs.
100° SPDT DPDT
0,45 lbs.
0,45 lbs.
0,19 lbs.
0,19 lbs. 250°F 121°C
0,45 lbs.
0,28 lbs.
250°F 121°C
250°F 121°C
Plunger actuated switches
Momentary LSXC Plunger Pretravel max. Differential Travel max. 1,78mm .070 SPDT 0,38mm .015 DPDT 0,51mm .020 LSXD Roller Plunger 1,78mm .070 SPDT 0,38mm .015 DPDT 0,51mm .020 LSXE Side Plunger 2,54mm .100 1,14mm .045 4,83mm .190 26,7 lbs. 33,0 0,76mm 1.300 .030 LSXF Side Roller Plunger 2,54mm .100 1,14mm .045 4,83mm .190 26,7 lbs. 44,1 1.735 .040
Overtravel min. Operating Force max. Operating Point Operating Temperature Range
4,83mm .190 17,8 lbs. 58,5 0,76mm 2.305 .030
4,83mm .190 17,8 lbs. 68,6 2.700 .040
93°C 200°F
Wobble Actuated Switches
Momentary LSXJ Delrin Pretravel max. Operating Force max. Operating Temperature Range
Newtons
LSXK Whisker (Wire) Radius approx. 50,8mm 1,39 93°C 200°F
COMPLETELY FLUOROCARBONSEALED TEMPERATURE SWITCHES Completely fluorocarbon-sealed temperature construction switches available. page full description both these options. order fluorocarbon-sealed switches, insert additional letters appropriate places standard catalog listing; temperature versions insert additional letters Examples follow: LSXA3K-standard side rotary switch LSXYAC3K-completely fluorocarbonsealed version LSXA3K LSXA3K-standard side rotary switch LSXYAB3K-low temperature version LSXA3K
25,4mm 2,78
A116
Honeywell
Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
REPLACEMENT PARTS Operating Heads
Limit Enclosed Switches Weather-Sealed Explosion-Proof Switches
Switch Type LSXA LSXB LSXC LSXD LSXE LSXF LSXH LSXJ LSXK LSXL LSXM LSXN LSXP LSXR Catalog Listing Operating Head Only LSZ1A LSZ1B LSXZ1C LSXZ1D LSXZ1E LSXZ1F LSZ1H LSZ1JGA LSXZ1KHA LSZ1L LSZ1M LSZ1N LSZ1P LSZ1R
Series
ADAPTER PLATE
Catalog Listing LSXZ4022 adapter plate enables explosion-proof mounted existing HDLS mounting holes. recessed back into which adapter plate fits mounts, using screws (furnished).
Limit/Enclosed
Contact Blocks
Circuitry Single Pole Double Pole Sequence Center Neutral Contact Block LSXZ3K LSXZ3L LSXZ3M
MOUNTING DIMENSIONS (For reference only)
ROTARY SIDE ROTARY
Conduit Openings (LSXA3, LSXB3, LSXH3, LSXN3, LSXP3 LSXR3 have 1/2-14 NPT. LSXA4, LSXB4, LSXH4, LSXLR, LSXM4, LSXN4, LSXP4, LSXR4 have 3/4-14 NPT.
Honeywell
Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
A117
Limit Enclosed Switches Weather-Sealed Explosion-Proof Switches
MOUNTING DIMENSIONS (For reference only)
PLUNGER ROLLER PLUNGER
Series
Conduit Openings (LSXJ3, LSXK3 have 1/2-14 NPT.) (LSXJ4 LSXK4 have 3/4-14 NPT.)
WHISKER
WOBBLE STICK Conduit Openings (LSXE3 LSXF3 have 1/2-14 NPT. LSXE4 LSXF4 have 3/4-14 NPT).
PLUNGER
ROLLER PLUNGER
Conduit Openings (LSXC3 LSXD3 have 1/2-14 NPT. LSXC4 LSXD4 have 3/4-14 NPT).
A118
Honeywell Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada

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