A22@ Install 22-dia. 25-dia. Panel Cutout Lever easily mount
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Knob-type Selector Switch (Cylindrical 22/25-dia.)
A22@
Install 22-dia. 25-dia. Panel Cutout
Lever easily mounting removing Switch Unit Increase wiring efficiency with three-row mounting Switch Blocks. Finger protection mechanism Switch Unit provided standard feature. 25-dia. ring install 25-dia. panel cutouts. Mounted using either open-type (fork-type) closed-type (round-type) crimp terminals. IP65 resistance (non-lighted models) IP65 (lighted models)
sure read Safety Precautions Pushbutton Switches Safety Precautions A22.
Model Number Structure
Model Number Legend. Shipped which includes Selector, Lamp (lighted models only), Switch.
information combinations, refer Ordering Information pages
Lighted/Non-lighted
Code Description Non-lighted Lighted
Illumination Color
Code None Color Green Yellow Blue Black*
Light Source Contacts Without Voltage Reduction Unit Code Description
Code None Operating Voltage Non-lighted VAC/VDC VAC/VDC VAC/VDC Incandescent VAC/VDC lamp VAC/VDC Type SPST-NO SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC
non-lighted models only
Number Notches/Reset Method
Code Number Notches notches notches Reset Method Manual Automatic Manual Automatic
With Voltage Reduction Unit Code Type Operating Voltage
models with notches Note: contacts rated standard loads. microloads, refer Accessories section A22.
incorporates 24-VAC/VDC models.
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A22@
Ordering Information
Completely Assembled Shipped which includes Selector, Lamp (lighted models only), Switch.
Non-lighted Knob-type Selector Switch
Appearance Knob-type Selector Switch A22S Manual Number notches Resetting method Output SPST-NO SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC SPST-NO SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC Model A22S-2M-10 A22S-2M-01 A22S-2M-11 A22S-2M-20 A22S-2M-02 A22S-2A-10 A22S-2A-01 A22S-2A-11 A22S-2A-20 A22S-2A-02 A22S-3M-11 A22S-3M-20 A22S-3M-02 A22S-3A-11 A22S-3A-20 A22S-3A-02 Color Selector
notches
Automatic
Black
Manual notches Automatic
Note: contact ratings standard loads.
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A22@
Ordering Information
Completely Assembled. Shipped which includes Selector, Lamp (lighted models only), Switch.
Lighted Knob-type Selector Switch
Appearance Number notches Resetting method Output Operating voltage VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC VAC/VDC Model A22W-2M@-6D-10 A22W-2M@-6A-10 A22W-2M@-12A-10 A22W-2M@-24A-10 A22W-2M@-6D-01 A22W-2M@-6A-01 A22W-2M@-12A-01 A22W-2M@-24A-01 A22W-2M@-6D-11 A22W-2M@-6A-11 A22W-2M@-12A-11 A22W-2M@-24A-11 A22W-2M@-6D-20 A22W-2M@-6A-20 A22W-2M@-12A-20 A22W-2M@-24A-20 A22W-2M@-6D-02 A22W-2M@-6A-02 A22W-2M@-12A-02 A22W-2M@-24A-02 A22W-2A@-6D-10 A22W-2A@-6A-10 A22W-2A@-12A-10 A22W-2A@-24A-10 A22W-2A@-6D-01 A22W-2A@-6A-01 A22W-2A@-12A-01 A22W-2A@-24A-01 A22W-2A@-6D-11 A22W-2A@-6A-11 A22W-2A@-12A-11 A22W-2A@-24A-11 A22W-2A@-6D-20 A22W-2A@-6A-20 A22W-2A@-12A-20 A22W-2A@-24A-20 A22W-2A@-6D-02 A22W-2A@-6A-02 A22W-2A@-12A-02 A22W-2A@-24A-02 A22W-3M@-6D-11 A22W-3M@-6A-11 A22W-3M@-12A-11 A22W-3M@-24A-11 A22W-3M@-6D-20 A22W-3M@-6A-20 A22W-3M@-12A-20 A22W-3M@-24A-20 A22W-3M@-6D-02 A22W-3M@-6A-02 A22W-3M@-12A-02 A22W-3M@-24A-02 A22W-3A@-6D-11 A22W-3A@-6A-11 A22W-3A@-12A-11 A22W-3A@-24A-11 A22W-3A@-6D-20 A22W-3A@-6A-20 A22W-3A@-12A-20 A22W-3A@-24A-20 A22W-3A@-6D-02 A22W-3A@-6A-02 A22W-3A@-12A-02 A22W-3A@-24A-02 Illumination color
Knob-type Selector Switch A22W lighting (without Voltage Reduction Unit)
SPST-NO
SPST-NC
Manual
SPST-NO SPST-NC
SPST-NO SPST-NO
SPST-NC SPST-NC notches SPST-NO
SPST-NC
Automatic
SPST-NO SPST-NC
SPST-NO SPST-NO
(red) (yellow) (green) (blue)
SPST-NC SPST-NC
SPST-NO SPST-NC
Manual
SPST-NO SPST-NO
SPST-NC SPST-NC notches SPST-NO SPST-NC
Automatic
SPST-NO SPST-NO
SPST-NC SPST-NC
Note: When ordering, specify symbol that indicates color Selector model number. contact ratings standard loads.
Individual models: Refer pages (The Selector, Lamp, Switch ordered separately.)
Ratings characteristics: Refer A22. Dimensions: Refer page Accessories tools: Refer A22.
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A22@
Ordering Information
Completely Assembled Shipped which includes Selector, Lamp (lighted models only), Switch.
Lighted Knob-type Selector Switch
Appearance Knob-type Selector Switch A22W voltage-reduction lighting (with Voltage Reduction Unit) Manual Number notches Resetting method Output SPST-NO SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC SPST-NO SPST-NC Automatic SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC SPST-NO SPST-NC Manual SPST-NO SPST-NO SPST-NC SPST-NC SPST-NO SPST-NC Automatic SPST-NO SPST-NO SPST-NC SPST-NC Operating voltage Model A22W-2M@-T1-10 A22W-2M@-T2-10 A22W-2M@-T1-01 A22W-2M@-T2-01 A22W-2M@-T1-11 A22W-2M@-T2-11 A22W-2M@-T1-20 A22W-2M@-T2-20 A22W-2M@-T1-02 A22W-2M@-T2-02 A22W-2A@-T1-10 A22W-2A@-T2-10 A22W-2A@-T1-01 A22W-2A@-T2-01 A22W-2A@-T1-11 A22W-2A@-T2-11 A22W-2A@-T1-20 A22W-2A@-T2-20 A22W-2A@-T1-02 A22W-2A@-T2-02 A22W-3M@-T1-11 A22W-3M@-T2-11 A22W-3M@-T1-20 A22W-3M@-T2-20 A22W-3M@-T1-02 A22W-3M@-T2-02 A22W-3A@-T1-11 A22W-3A@-T2-11 A22W-3A@-T1-20 A22W-3A@-T2-20 A22W-3A@-T1-02 A22W-3A@-T2-02 Selector symbol(color)
notches
(red) (yellow) (green) (blue)
notches
Note: When ordering, specify symbol that indicates color Selector model number. contact ratings standard loads.
Individual models: Refer pages (The Selector, Lamp, Switch ordered separately.)
Ratings performance: Refer A22. Dimensions: Refer page Accessories tools: Refer A22.
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A22@
Ordering Information
Completely Assembled. Selector, Lamp, Switch ordered separately. them combination models that
available assembled Units. These also used inventory maintenance parts.
Ordering: Specify model from listing starting page
Non-lighted Models Selector Lighted Models (without Voltage Reduction Unit) Selector Lighted Models (with Voltage Reduction Unit) Selector
Lamp Incandescent lamp
Lamp
Switch
Switch (without Voltage Reduction Unit)
Switch (with Voltage Reduction Unit)
models: Refer pages
Ratings characteristics: Refer A22. Dimensions: Refer page Accessories tools: Refer A22.
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A22@
Ordering Information
Subassembled Selector, Lamp, Switch ordered separately. them combination models that
available assembled Units. These also used inventory maintenance parts.
Selectors Non-lighted (Color: Only Black Available)
Sealing IP65 (oil-resistant) Standard lever
Lighted
Sealing Standard lever Appearance IP65
Appearance
Notches
Reset method Manual Automatic Manual
Model A22S-2M A22S-2A A22S-3M A22S-3A Selector color Manual Green Yellow Blue notches Automatic Green Yellow Blue Manual Green Yellow Blue notches Automatic Green Yellow Blue Notches Reset method Model A22W-2MR A22W-2MG A22W-2MY A22W-2MA A22W-2AR A22W-2AG A22W-2AY A22W-2AA A22W-3MR A22W-3MG A22W-3MY A22W-3MA A22W-3AR A22W-3AG A22W-3AY A22W-3AA
notches
notches
Automatic
Sealing Long lever Appearance
IP65 (oil-resistant)
Notches
Reset method Manual Automatic Manual
Model A22S-C2M A22S-C2A A22S-C3M A22S-C3A
notches
Note: Either incandescent lamps lamps used with theabove models.
notches
Automatic
models: Refer pages
Ratings characteristics: Refer A22. Dimensions: Refer page Accessories tools: Refer A22.
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A22@
Ordering Information
Subassembled Selector, Lamp, Switch ordered separately. them combination models that
available assembled Units. These also used inventory maintenance parts.
Switches (Standard Load)
Non-lighted Without Voltage Reduction Unit Lighted With Voltage Reduction Unit With Voltage Reduction Unit
Appearance
Contacts SPST-NO SPST-NC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC A22-10M A22-01M A22-11M A22-20M A22-02M A22L-10M A22L-01M A22L-11M A22L-20M A22L-02M
Model A22L-10M-T1 A22L-01M-T1 A22L-11M-T1 A22L-20M-T1 A22L-02M-T1 A22L-10M-T2 A22L-01M-T2 A22L-11M-T2 A22L-20M-T2 A22L-02M-T2
Note: voltage-reduction lighting, A22-24A@. Only 24-V lamps used.
Lamps Lamp
Operating voltage Appearance light Green Yellow* Blue Green Yellow* Blue Green Yellow* Blue A22-6DR A22-6DG A22-6DY A22-6DA A22-6AR A22-6AG A22-6AY A22-6AA Model -A22-12AR A22-12AG A22-12AY A22-12AA -A22-24AR A22-24AG A22-24AY A22-24AA -A22-24ASR A22-24ASG A22-24ASY A22-24ASA Super-bright
Note: voltage-reduction lighting, A22-24A@. Only 24-V lamps used. Used when Selector color yellow white.
Incandescent Lamp
Appearance Operating voltage VAC/VDC A22-5 VAC/VDC A22-12 VAC/VDC A22-24
models: Refer pages
Ratings performance: Refer A22. Dimensions: Refer page Accessories tools: Refer A22.
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A22@
Nomenclature
Model Structure
Selector
Number Notches notches/3 notches Applicable Colors Non-lighted: Black Lighted: Red, Green Yellow, Blue Lock Ring
Lamp
Light Source lamp Incandescent lamp
Switch
Contacts SPST-NO, SPST-NC, SPST-NO SPST-NC, SPST-NO SPST-NO, SPST-NC SPST-NC (Minimum applicable load: VDC) Lighting Method Non-lighted Lighted (without Voltage Reduction Unit) Lighted (with Voltage Reduction Unit)
Ratings characteristics: Refer A22. Dimensions: Refer page
Precautions correct use: Refer A22. Accessories tools: Refer A22.
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A22@
Nomenclature
Contacts
2-notch Type
Knob position SPSTNO SPSTNC SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC
3-notch Type
Knob position SPST-NO SPST-NC SPST-NO SPST-NO SPST-NC SPST-NC
Operation Angle
notches
(75°)
Three notches
(45°) (45°)
Note: angle used automatic reset shown parentheses. Free Position
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A22@
Dimensions
Knob-type Selector Switch (Lighted/Non-lighted) Knob-type Selector Switch A22S/A22W A22S-C
dia.
dia.
26.2 54.7
26.2
54.7
Terminal Arrangement (Bottom View)
Non-lighted
20.7 Switch Blocks
Lighted
Switch Blocks
Panel Cutouts
16.7
22.3
M3.5 screw Switch Blocks
dia.
dia.
Lamp socket
Terminal Connection
Type Connection diagram
When applying coating such paint panel, dimensions should those after application coating. Recommended panel thickness: A22Z-R25 Ring when mounting panel with 25-mm holes.
Bottom view
Non-lighted
Bottom view
Lighted without Voltage Reduction Unit
Bottom view
Lighted with Voltage Reduction Unit
Note: above terminal connection diagrams examples SPST-NO SPST-NC.
Accessories
Refer relevant information corresponding section A22.
Safety Precautions
Refer Safety Precautions Pushbutton Switches Safety Precautions A22.
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Safety Precautions Pushbutton Switches
individual precautions Switch, refer Safety Precautions section that Switch.
WARNING
perform wiring with power supplied Switch. touch terminals other charged parts Switch while power being supplied. Doing result electric shock.
Caution
apply voltage between incandescent lamp terminal that greater than rated voltage. Doing damage lamp cause Operation Unit out. Always turn power wait minutes before replacing incandescent lamp. lamp replaced immediately after power turned OFF, remaining heat cause burns.
Precautions Correct
details, refer Precautions Correct Technical Guide Pushbutton Switches.
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Safety Precautions
Refer Safety Precautions Pushbutton Switches.
WARNING
apply voltage between incandescent lamp terminal that greater than rated voltage. incandescent lamp broken, Operation Units out. Always turn power wait minutes before replacing incandescent lamp. lamp replaced immediately after power turned OFF, remaining heat cause burns.
current-limiting resistor built-in, internal resistance required. commercially available LEDs used, select ones that meet following conditions: Base: BA9S/13 Overall length: max. Power consumption: max.
Others
Precoutions Correct
Mounting
perform wiring with power supplied Switch. touch terminals other charged parts Switch while power being supplied. Doing result electric shock. Always make sure that power turned before mounting, removing, wiring Switch, performing maintenance. tighten mounting ring more than necessary using tools such pointed-nose pliers. Doing will damage mounting ring. tightening torque 0.98 1.96 Recommended panel thickness:
panel finished with coating, etc., make sure that panel meets specified dimensions after coating. subject Switch extreme shock vibration. Doing will cause malfunctions damage Switch.
Using Microload
Insert contact protection circuit, necessary, prevent reduction life expectancy extreme wear contacts caused loads where inrush current occurs when contact opened closed. minimum applicable load N-level reference value. This value indicates malfunction reference level reliability level (conforming C5003). equation, 6/operations indicates that estimated malfunction rate less than 1/2,000,000 operations with reliability level 60%.
Voltage
Wiring
When DC-specific LEDs used, wire Switch that terminal positive. Terminal screws must Phillips slotted M3.5 screws with square washer. tightening torque 1.08 1.27 Solid wires, stranded wires, crimp terminals connected Switch.
0.16
Applicable Wire Size
Stranded wire: max. Solid wire: dia. max. Bare Crimp Terminals
max. max.
Microload area Standard load area
Invalid area
16.0 max.
16.0 max.
1,000 Current (mA)
Crimp Terminals with Insulating Sheath
max. max.
20.2 max.
20.2 max.
After wiring Switch, maintain appropriate clearance creepage distance.
Operating Environment
IP65 model designed with degree protection that will sustain damage subjected water from direction front panel. This switch intended indoor only. Using Switch outdoors will result failure.
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Technical Guide Pushbutton Switches
Precautions Correct Pushbutton Switches
individual precautions Switch, refer precautions section that Switch.
Electrical Characteristics
Operating Load
switching load capacity Switch greatly varies between Always sure apply rated load. control capacity will drastically drop load. This because load current zero-cross point, unlike load. Therefore, generated, continue comparatively long time. Furthermore, current direction always same, which results contact relocation phenomena whereby contacts easily stick each other separate when surfaces contacts uneven. Some types load have great difference between normal current inrush current. Make sure that inrush current within permissible value. greater inrush current closed circuit greater contact abrasion shift will Consequently, contact weld, contact separation failures, insulation failures result. Furthermore, Switch broken damaged. load inductive, counter-electromotive voltage will generated. higher voltage higher generated energy will which will increase abrasion contacts contact relocation phenomena. sure Switch within rated conditions. performance ratings given operation under following conditions unless otherwise specified. Inductive load: minimum power factor (AC) maximum time constant (DC) Lamp load: inrush current times higher than steady-state current Motor load: inrush current times higher than steady-state current
Note: Inductive loads cause problems especially circuitry. Therefore, essential know time constants (L/R) load.
Load Connections
contact single Switch power supplies that different polarity type.
Connection Different Polarities
power supply short-circuit loads connected shown "incorrect" example below.
Incorrect
Load
Inrush Current
Load
correct
(Inrush current) Load
Load
Connect load same polarity. Even "correct" example, note that insulation performance switch deteriorate switch life shortened because loads connected both contacts.
(Steadystate current)
Approximate control capacities given ratings tables, these alone insufficient guarantee correct operation. special types load, with unusual switching voltage current waveforms, test whether correct operation possible with actual load before application. When switching microloads (voltage current), Switch with microload specifications. reliability silver-plated contacts, which used Switches standard loads, will insufficient microloads. When switching microloads very high loads that beyond switching capacity Switch, connect relay suitable load.
Connection Different Power Supplies
power mixed circuit shown below.
Incorrect
Load
Type Load Inrush Current
Solenoid (Approximately times higher) Load
Incandescent lamp (Approximately times higher) Motor (Approximately times Relay higher) (Approximately times higher)
design circuit where voltage imposed between contacts, otherwise contact weld result.
Incorrect
Load
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Technical Guide Pushbutton Switches
Contact Protective Circuit
Apply contact protective circuit extend contact life, prevent noise, suppress generation carbide nitric acid. sure apply contact protective circuit correctly, otherwise adverse effect occur. following provides typical examples contact protective circuits. Limit Switch used excessively humid location switching load that easily generates arcs, such inductive load, arcs generate NOx, which will change into HNO3 reacts with moisture. Consequently, internal metal parts corrode Limit Switch fail. sure select ideal contact preventive circuit from following.
Typical Examples Contact Protective Circuits
Circuit example Applicable current Feature details Element selection
Power supply
Inductive load
circuit
Inductive load
Power supply
switching current switching voltage *When switched, load impedance values change according must lower than impedance. characteristics load. capacitor suppresses spark discharge current when contacts open. resistor limits inrush current when contacts operating time will greater load closed again. Consider roles capacitor resistor determine ideal relay solenoid. Connecting circuit parallel load effective when capacitance resistance values through power supply voltage testing. Basically, capacitor with dielectric strength between parallel contacts when power When switched, make sure that supply voltage capacitor polarity. Energy stored coil changed into current diode connected parallel load. Then current flowing coil consumed Joule heat generated resistance inductive load. reset time delay with this method longer than that method. diode must withstand peak inverse voltage times higher than circuit voltage forward current high higher than load current.
Diode method
Power supply
Inductive load
Diode Zener diode method
Power supply
Inductive load
Zener diode with Zener voltage that This method will effective reset time approximately power supply voltage delay caused diode method depending environment, load long. operate.
Varistor method
Power supply
Inductive load
This method makes constant-voltage characteristic varistor that high-voltage imposed contacts. This method causes reset time delay. Connecting varistor parallel load effective when supply voltage parallel contacts when supply voltage
apply contact protective circuits shown below.
This circuit effectively suppresses arcs when contacts OFF. capacitor will charged, however, when contacts OFF. Consequently, when contacts again, short-circuited current from capacitance cause contact weld. This circuit effectively suppresses arcs when contacts OFF. When contacts again, however, charge current will flow capacitor, which result contact weld.
Power supply
Load
Power supply
Load
Switching inductive load usually more difficult than switching resistive load. using appropriate contact protective circuit, however, switching inductive load will easy switching resistive load.
Switching
Switch loads that exceed rated switching capacity other contact ratings. Doing result contact weld, contact separation failures, insulation failures. Furthermore, Switch broken damaged. touch charged switch terminals while power supplied, otherwise electric shock received. life Switch varies greatly with switching conditions. Before using Switch, sure test Switch under actual conditions. Make sure that number switching operations within permissible range. deteriorated Switch used continuously, insulation failures, contact weld, contact failures, switch damage, switch burnout result. apply excessive incorrect voltages Switch incorrectly wire terminals. Otherwise, Switch function properly have adverse effect external circuitry. Furthermore, Switch itself become damaged burnt. Switch locations where flammable explosive gases present. Otherwise switching arcs heat radiation cause fire explosion. drop disassemble Switch, otherwise capable full performance. Furthermore, broken burnt.
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Technical Guide Pushbutton Switches
Mechanical Conditions
Operating Force Operating Method
Fingertip operation important feature Pushbutton Switches. terms Switch operation, Pushbutton Switches differ greatly from detection switches such Microswitches. Operating Switch using hard object (e.g., metal), with large sudden force, deform damage Switch, resulting faulty rough operation, shortening Switch life. strength varies with size construction Switch. appropriate Switch application after confirming operating method operating force with this catalog.
Hammer
Mounting
Switches broadly divided into categories according mounting method: panel-mounting models PCB-mounting models. appropriate model mounting method required. Basically, panel-mounting Switches withstand greater operating force than PCB-mounting Switches. however, panel thickness panel-cutout dimensions suitable Switch, able withstand normal operating force. With continuous mounting particular, select panel thickness that easily sufficient withstand total operating force. Panel-mounting Switches divided into categories according mounting method: snap-in mounting models screw-mounting models. Snap-in mounting Switches held place with elasticity resin metal leaf spring. attempt modify spring after mounting. Doing result faulty operation damage mounting structure. Mount screwmounting models using screws nuts provided individually specified). Tighten screws specified torque. Mounting with different screws nuts, tightening beyond specified torque result distortion inside case damage screw section.
Snap-in Mounting Screw Mounting
apply excessive sudden force.
pushbutton surface composed resin. Therefore, attempt operate pushbutton using sharp object, such screwdriver pair tweezers. Doing damage deform pushbutton surface result faulty operation.
sharp objects.
attempt modify spring after mounting.
Screwdriver
screws nuts provided specified).
Tweezers
Subjecting Switch severe vibrations shock result faulty operation damage. Also, many Switches composed resin contact with sharp objects result damage surface. This kind damage spoil appearance Switch result faulty operation. throw drop Switch.
drop knock Switch.
drop objects place heavy objects Switch.
operate Switch with heavy sharp objects.
Hammer
Screwdriver
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Technical Guide Pushbutton Switches
Mounting Precautions
Wiring
Perform wiring that lead wires will caught other objects this will cause stress Switch terminals. Wire Switch that there slack lead wires lead wires intermediate points. panel which Switch mounted needs opened closed maintenance purposes, perform wiring that opening closing panel will interfere with wiring. Perform hand soldering using appropriate soldering iron.
Terminal Large-capacity soldering iron Lead wire
Small-capacity soldering iron used long time
Perform soldering between with suitable soldering iron.
With exception PCB-mounting Switches, when performing hand soldering, hold Switch that terminals point downwards that flux does inside Switch.
Leave least between soldered parts surface case that flux does inside Switch.
Case
Terminal
With miniature Switches, between terminals very narrow. protective heat-absorbing tubes prevent burning wire sheath shorting.
Solder
min.
Lead wire
When applying flux using brush, sponge soaked flux shown below. apply more than necessary. Also, apply flux with inclined angle less than that flux does flow onto mounting surface Switch.
Brush
Protective tube
Soldering
There methods soldering Switch: hand soldering automatic soldering. addition, automatic soldering itself divided into types soldering reflow soldering. soldering method appropriate mounting method.
Sponge soaked flux
max.
Typical Soldering Example
Method Hand soldering Soldering device Soldering iron Application Small quantities Different materials Lead wire terminals Large quantities discrete terminals
Flux
Brush
soldering bath soldering soldering bath Automatic soldering Infrared reflow (IR) Reflow soldering bath soldering Vapor-phase (VPS) reflow soldering bath
Large quantities miniature terminals
soldering flux that contains chlorine. Doing result metal corrosion.
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Technical Guide Pushbutton Switches
place PCBs that have flux applied have been soldered each other. Otherwise, flux PCBs solder surface stain upper part Switch even permeate inside Switch cause contact failure. sure insert special stocker.
Storage
When Switch left unused stored long periods, ambient conditions have great effect condition Switch. certain environments, leaving Switch exposed result deterioration (i.e., oxidation, creation oxide film) contacts terminals, causing contact resistance increase, making difficult solder lead wires. Therefore, store well-ventilated room, inside, example, non-hygroscopic case, location where corrosive gases present.
Flux
place PCBs with solder flux each other.
When performing soldering with soldering bath, ensure that flux does reach higher level than PCB.
Switch stored location where will exposed direct light, colored resin colored plate fade. Therefore, store Switch locations where will exposed direct light.
Flux especially likely rise edges PCB. Switch mounted near edge PCB, create between edge using split PCB, insert soldering bath that edge that farthest from Switch enters bath first.
Create distance
Create distance
Split Flux more likely rise edges.
Insert soldering bath from this edge.
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Read Understand This Catalog
Please read understand this catalog before purchasing products. Please consult your OMRON representative have questions comments.
Warranty Limitations Liability
WARRANTY
OMRON's exclusive warranty that products free from defects materials workmanship period year other period specified) from date sale OMRON. OMRON MAKES WARRANTY REPRESENTATION, EXPRESS IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, FITNESS PARTICULAR PURPOSE PRODUCTS. BUYER USER ACKNOWLEDGES THAT BUYER USER ALONE DETERMINED THAT PRODUCTS WILL SUITABLY MEET REQUIREMENTS THEIR INTENDED USE. OMRON DISCLAIMS OTHER WARRANTIES, EXPRESS IMPLIED.
LIMITATIONS LIABILITY
OMRON SHALL RESPONSIBLE SPECIAL, INDIRECT, CONSEQUENTIAL DAMAGES, LOSS PROFITS, COMMERCIAL LOSS CONNECTED WITH PRODUCTS, WHETHER SUCH CLAIM BASED CONTRACT, WARRANTY, NEGLIGENCE, STRICT LIABILITY. event shall responsibility OMRON exceed individual price product which liability asserted. EVENT SHALL OMRON RESPONSIBLE WARRANTY, REPAIR, OTHER CLAIMS REGARDING PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, MAINTAINED SUBJECT CONTAMINATION, ABUSE, MISUSE, INAPPROPRIATE MODIFICATION REPAIR.
Application Considerations
SUITABILITY
OMRON shall responsible conformity with standards, codes, regulations that apply combination products customer's application product. customer's request, OMRON will provide applicable third party certification documents identifying ratings limitations that apply products. This information itself sufficient complete determination suitability products combination with product, machine, system, other application use. following some examples applications which particular attention must given. This intended exhaustive list possible uses products, intended imply that uses listed suitable products: Outdoor use, uses involving potential chemical contamination electrical interference, conditions uses described this catalog. Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, installations subject separate industry government regulations. Systems, machines, equipment that could present risk life property. Please know observe prohibitions applicable products. NEVER PRODUCTS APPLICATION INVOLVING SERIOUS RISK LIFE PROPERTY WITHOUT ENSURING THAT SYSTEM WHOLE BEEN DESIGNED ADDRESS RISKS, THAT OMRON PRODUCT PROPERLY RATED INSTALLED INTENDED WITHIN OVERALL EQUIPMENT SYSTEM.
Disclaimers
CHANGE SPECIFICATIONS
Product specifications accessories changed time based improvements other reasons. practice change model numbers when published ratings features changed, when significant construction changes made. However, some specifications product changed without notice. When doubt, special model numbers assigned establish specifications your application your request. Please consult with your OMRON representative time confirm actual specifications purchased product.
DIMENSIONS WEIGHTS
Dimensions weights nominal used manufacturing purposes, even when tolerances shown.
ERRORS OMISSIONS
information this catalog been carefully checked believed accurate; however, responsibility assumed clerical, typographical, proofreading errors, omissions.
PERFORMANCE DATA
Performance data given this catalog provided guide user determining suitability does constitute warranty. represent result OMRON's test conditions, users must correlate actual application requirements. Actual performance subject OMRON Warranty Limitations Liability.
PROGRAMMABLE PRODUCTS
OMRON shall responsible user's programming programmable product, consequence thereof.
COPYRIGHT COPY PERMISSION
This catalog shall copied sales promotions without permission. This catalog protected copyright intended solely conjunction with product. Please notify before copying reproducing this catalog manner, other purpose. copying transmitting this catalog another, please copy transmit entirety.
2007.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
interest product improvement, specifications subject change without notice.
(c)Copyright OMRON Corporation 2007 Rights Reserved.
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