Lighted Pushbutton Switch (Square)
A3S
Pushbutton Switch Series with Square 40-mm Body
Model Number Structure
Model Number Legend
The model numbers used to order sets are illustrated below. One set comprises the Operation Unit, Lamp, and Socket Unit. For more information, refer to Ordering Information. Some forms may not be available for order depending on the combination of functions and specifications described below. Contact your OMRON sales representative for more detailed information.
Ordering Information
Ordering as a Set
The model numbers used to order sets of Units are given in the following tables. One set comprises the Operation Unit, Lamp, and Socket Unit. Not all combinations are possible. Ask your OMRON representative for details.
Standard Loads
Single screen
Contact type |
Standard load (250 VAC, 2 A; 125 VDC 0.4 A) |
Operation Unit color symbol |
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Operation |
Momentary operation |
Alternate operation |
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Output |
Lighting |
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SPDT |
LED |
5 VDC |
A3SJ-90A1-05E[] |
A3SJ-90B1-05E[] |
Enter the desired color symbol |
12 VDC |
A3SJ-90A1-12E[] |
A3SJ-90B1-12E[] |
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24 VDC |
A3SJ-90A1-24E[] |
A3SJ-90B1-24E[] |
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DPDT |
LED |
5 VDC |
A3SJ-90C1-05E[] |
A3SJ-90D1-05E[] |
|
12 VDC |
A3SJ-90C1-12E[] |
A3SJ-90D1-12E[] |
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24 VDC |
A3SJ-90C1-24E[] |
A3SJ-90D1-24E[] |
Vertical 2-split screen
Contact type |
Standard load (250 VAC, 2 A; 125 VDC 0.4 A) |
Operation Unit color symbol |
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Operation |
Momentary operation |
Alternate operation |
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Output |
Lighting |
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SPDT |
LED |
24 VDC |
A3SJ-90A3-24E[][] |
A3SJ-90B3-24E[][] |
Enter the desired color symbol for |
DPDT |
LED |
24 VDC |
A3SJ-90C3-24E[][] |
A3SJ-90D3-24E[][] |
Microloads
Single screen
Contact type |
Microload |
Operation Unit color symbol |
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Operation |
Momentary operation |
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Output |
Lighting |
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SPDT |
LED |
12 VDC |
A3SJ-90E1-12E[] |
Enter the desired color symbol for the |
24 VDC |
A3SJ-90E1-24E[] |
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DPDT |
LED |
5 VDC |
A3SJ-90G1-05E[] |
|
12 VDC |
A3SJ-90G1-12E[] |
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24 VDC |
A3SJ-90G1-24E[] |
Vertical 2-split screen
Contact type |
Microload |
Operation Unit color symbol |
||
Operation |
Momentary operation |
|||
Output |
Lighting |
|||
SPDT |
LED |
24 VDC |
A3SJ-90E3-24E[][] |
Enter the desired color symbol for the |
DPDT |
LED |
24 VDC |
A3SJ-90G3-24E[][] |
Standard Loads
Single screen
Contact type |
Standard load (250 VAC, 2 A; 125 VDC 0.4 A) |
Operation Unit |
|||
Operation |
Momentary operation |
Alternate operation |
|||
Output |
Lighting |
||||
SPDT |
LED |
5 VDC |
A3SA-90A1-05E[] |
A3SA-90B1-05E[] |
Enter the desired color symbol |
12 VDC |
A3SA-90A1-12E[] |
A3SA-90B1-12E[] |
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24 VDC |
A3SA-90A1-24E[] |
A3SA-90B1-24E[] |
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DPDT |
LED |
5 VDC |
A3SA-90C1-05E[] |
A3SA-90D1-05E[] |
|
12 VDC |
A3SA-90C1-12E[] |
A3SA-90D1-12E[] |
|||
24 VDC |
A3SA-90C1-24E[] |
A3SA-90D1-24E[] |
Microloads
Single screen
Contact type |
Microload |
Operation Unit color symbol |
||
Operation |
Momentary operation |
|||
Output |
Lighting |
|||
SPDT |
LED |
5 VDC |
A3SA-90E1-05E[] |
Enter the desired color symbol for the |
12 VDC |
A3SA-90E1-12E[] |
|||
24 VDC |
A3SA-90E1-24E[] |
|||
DPDT |
LED |
5 VDC |
A3SA-90G1-05E[] |
|
12 VDC |
A3SA-90G1-12E[] |
|||
24 VDC |
A3SA-90G1-24E[] |
Ordering Individually
Operation Units, Lamps, and Socket Units can be ordered separately. Combinations that are not available as sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs.
Operation Unit
LED-lighted Models (LED is not built in.)
Appearance |
Rectangular Models (2 LEDs)
|
Square Models (1 LED)
|
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Screen pattern |
Display color |
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Single screen |
|
White |
A3SJ-5801 |
A3SA-5801 |
|
Red |
A3SJ-5802 |
A3SA-5802 |
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Green |
A3SJ-5803 |
A3SA-5803 |
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Yellow |
A3SJ-5805 |
A3SA-5805 |
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2-split |
Standard |
|
White/red |
A3SJ-5901 |
--- |
White/green |
A3SJ-5902 |
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White/yellow |
A3SJ-5904 |
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Red/green |
A3SJ-5905 |
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Red/yellow |
A3SJ-5907 |
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Green/yellow |
A3SJ-5909 |
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Reverse |
Red/white |
A3SJ-5911 |
--- |
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Green/white |
A3SJ-5912 |
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Green/red |
A3SJ-5915 |
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Yellow/red |
A3SJ-5917 |
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Yellow/green |
A3SJ-5919 |
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One-color |
White/white |
A3SJ-5921 |
--- |
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Red/red |
A3SJ-5922 |
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Green/green |
A3SJ-5923 |
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Yellow/yellow |
A3SJ-5925 |
Note: The color cap is transparent when the display color is white.
* Two-split screen configurations are given with the OMRON surface of the case downward.
Lamp
LED Lamp
Operating voltage |
5 VDC |
12 VDC |
24 VDC |
Color |
Model (DC only) |
Model (DC only) |
Model (DC only) |
Red |
SLL-05ER |
SLL-12ER |
SLL-24ER |
Yellow |
SLL-05EY |
SLL-12EY |
SLL-24EY |
Green |
SLL-05EG |
SLL-12EG |
SLL-24EG |
White |
SLL-05EW |
SLL-12EW |
SLL-24EW |
Note: The A3SJ (M2SJ) requires two LEDs for each Switch. The A3SA (M2SA) requires one LED.
Switch (LED models)
Appearance |
Rectangular
|
Square
|
Selection precautions |
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Contact type |
Number of |
Operation |
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Standard |
Silver |
1 |
Momentary operation |
A3SJ-8010 |
A3SA-7010 |
Use the Socket Unit in combination |
Alternate operation |
A3SJ-8020 |
A3SA-7020 |
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2 |
Momentary operation |
A3SJ-8030 |
A3SA-7030 |
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Alternate operation |
A3SJ-8040 |
A3SA-7040 |
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Microload |
Gold |
1 |
Momentary operation |
A3SJ-8050 |
A3SA-7050 |
|
Alternate operation |
A3SJ-8060 |
A3SA-7060 |
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2 |
Momentary operation |
A3SJ-8070 |
A3SA-7070 |
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Alternate operation |
A3SJ-8080 |
A3SA-7080 |
Accessories, Replacements, and Tools
Accessories for Rectangular Models
Name |
Appearance |
Classification |
Model |
Application precautions |
Barrier |
|
Short edge Barriers (1 pair) |
A3SA-4001 |
The purpose of a Barrier is to prevent malfunctioning |
Short intermediate Barriers |
A3SA-4002 |
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Long edge Barriers (1 pair) |
A3SJ-4003 |
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Long intermediate Barriers |
A3SJ-4004 |
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Switch Guard |
|
- |
A3SJ-5050 |
Cannot be used with Barrier or Seal Cover. |
Seal Cover |
|
- |
A3SJ-5060 |
Cannot be used with Barrier or Switch Guard. |
Long |
|
1 pair |
A3SJ-3002 |
Use when vertically mounting individual (with Barrier) or |
Name |
Appearance |
Classification |
Model |
Application precautions |
|
Socket |
|
Wire-wrap terminals |
A3SJ-4104 |
Sockets cannot be used for multiple |
|
PCB terminals |
A3SJ-4105 |
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Solder terminals |
A3SJ-4106 |
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Dispersion |
|
Milk-white |
Single |
A3SJ-5107 |
- |
Color cap |
|
Transparent |
Single |
A3SJ-5600 |
• Contact your OMRON representative for |
White |
A3SJ-5601 |
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Red |
A3SJ-5602 |
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Green |
A3SJ-5603 |
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Yellow |
A3SJ-5605 |
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|
Transparent |
2-split |
A3SJ-5630 |
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Green |
A3SJ-5633 |
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Yellow |
A3SJ-5635 |
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Legend |
|
Transparent |
A3SJ-4204 |
A transparent legend plate is mounted on |
|
Milk-white |
A3SJ-4203 |
Accessories for Square Models
Name |
Appearance |
Classification |
Model |
Application precautions |
Barrier |
|
Short Edge Barriers (1 pair) |
A3SA-4001 |
The purpose of the Barrier is to prevent malfunctioning |
Short Intermediate Barrier |
A3SA-4002 |
|||
Switch Guard |
|
- |
A3SA-5050 |
Cannot be used with Barrier or Seal Cover. |
Seal Cover |
|
- |
A3SA-5060 |
Cannot be used with Barrier or Switch Guard. |
Replacements for Rectangular Models
Replacements for Square Models
Name |
Appearance |
Classification |
Model |
Application precautions |
Socket |
|
Wire-wrap terminals |
A3SA-4101 |
Sockets cannot be used for multiple |
PCB terminals |
A3SA-4102 |
|||
Solder terminals |
A3SA-4103 |
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Dispersion |
|
Milk-white |
A3SA-5107 |
- |
Color cap |
|
Transparent |
A3SA-5600 |
• Contact your OMRON representative for |
White |
A3SA-5601 |
|||
Red |
A3SA-5602 |
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Green |
A3SA-5603 |
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Blue |
A3SA-5604 |
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Yellow |
A3SA-5605 |
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Legend |
|
Transparent |
A3SA-4204 |
A transparent color cap is mounted to a |
Milk-white |
A3SA-4203 |
Tools
Name |
Appearance |
Classification |
Model |
Application precautions |
Extractor |
|
- |
A3PJ-5080 |
Convenient for extracting the Operation Unit. |