Note: 1.
All drawings show the switches with screw terminals. For solder terminals, remove the “-B” from the end of the part number
2.
Unless otherwise specified, all units are in millimeters and a tolerance of
±
0.4 mm applies to all dimensions.
Pin Plunger
A-20G-B
PT
19.05±0.25
2.3 dia.
4.2
+0.075
dia. hole
−0.025
2.3SR *
OP
24.2
9.2
4.2
+0.075
dia.
−0.025
4.36
+0.1
dia.
−0.05
11.9
25.4±0.1
49.2
17.45±0.2
* Stainless-steel plunger
Short Spring Plunger
A-20GD-B
PT
19.05±0.25
15 dia.
11.2 dia.
7.15
11.9SR *
dia.
7.5
OP
24.2
* Stainless-steel plunger
Panel Mount Plunger
A-20GQ-B
PT
19.05±0.25
8.35 dia.
11.9SR *1
M12
×
1 mounting screw
OP
13.1
*2
Note:
Do not use both M12
mounting screw and
mounting holes at the
Two hexagon nuts
same time.
(2 t
×
14 width across flats)
16.3
16 dia.
Two lock nuts
(2 t
×
15.6 width across flats)
*1
Stainless-steel plunger
*2 Incomplete screw part with a maximum length of 1.5 mm.
Panel Mount Roller Plunger
A-20GQ22-B
PT
19.05±0.25
12.7 dia.
×
4.8 *1
Two hexagon nuts
(3 t
×
17 width across flats)
OP
15.5
*2
M12
×
1 mounting screw
16.3
16 dia.
Note:
Do not use both M12
mounting screw and
mounting holes at the
same time.
*1
Stainless-steel roller
*2 Incomplete screw part with a maximum length of 1.5 mm.
Panel Mount Cross Roller Plunger
A-20GQ21-B
PT
19.05±0.25
12.7 dia.
×
4.8 *1
Two hexagon nuts
(3 t
×
17 width across flats)
OP
15.5
M12
×
1 mounting screw
*2
16.3
16 dia.
Note:
Do not use both M12
mounting screw and
mounting holes at the
same time.
*1
Stainless-steel roller
*2 Incomplete screw part with a maximum length of 1.5 mm.
22
Snap Action Switch
A
OMRON [ OMRON ELECTRONICS LLC ]
