A-20GQ21-B Omron, A-20GQ21-B Datasheet - Page 3

• Manufacturer Part Number: A-20GQ21-B
• Description: BASIC SWITCH
• Manufacturer: Omron
• Series: Ar

Specifications of A-20GQ21-B

• Circuit: SPDT
• Switch Function: On-Mom
• Contact Rating @ Voltage: 20A @ 125VAC
• Actuator Type: Roller Plunger
• Mounting Type: Panel Mount
• Termination Style: Screw Terminal
• Operating Force: 630gf
• Contact Form: SPDT
• Contact Rating: 20 Amps at 250 Volts
• Actuator: Roller Plunger
• Pole Throw Configuration: SPDT
• Switch Function Configuration: N.O./N.C.
• Actuator Style: Cross Roller Plunger
• Current Rating (max): 20A
• Ac Voltage Rating (max): 500VVAC
• Dc Voltage Rating (max): 250VVDC
• Mechanical Life: 1000000
• Terminal Type: Screw
• Product Depth (mm): 17.45mm
• Product Length (mm): 49.2mm
• Operating Temp Range: -25C to 80C
• Contact Configuration: SPDT
• Microswitch Type: Standard
• Operating Force Max: 6.18N
• Contact Voltage Dc Nom: 250V
• Contact Voltage Ac Nom: 500V
• Contact Current Max: 20A
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: A20GQ21B

Dimensions and Operating Characteristics
The models, illustrations, and graphics are for screw-terminal models. (The dimensions for models that are omitted here are the same as for pin-plunger models.)
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Pin Plunger
A-20G-B
Short Spring Plunger
A-20GD-B
Panel Mount Plunger
A-20GQ-B
Panel Mount Roller Plunger
A-20GQ22-B
Panel Mount Cross Roller Plunger
A-20GQ21-B
Operating Characteristics
Operating force
Release force
Pretravel
Over Travel
Movement differential
Operating Position
OF
RF min.
PT max.
OT min.
MD max.
OP
Model
3.92 to 6.13 N
16.3±0.4 mm
PT
OP
PT
OP
PT
OP
A-20G-B
0.25 mm
1.3 mm
0.2 mm
2.79 N
13.1
15.5
15.5
PT
OP
4.2
+0.075
−0.025
16.3
16.3
16.3
OP
PT
*2
*2
*2
dia.
16 dia.
16 dia.
16 dia.
4.36
3.92 to 6.13 N
19.05±0.25
19.05±0.25
25.4±0.1
19.05±0.25
19.05±0.25
19.05±0.25
26.2±0.5 mm
49.2
A-20GD-B
+0.1
1.3 mm
0.2 mm
−0.05
2.79 N
3 mm
dia.
11.9
4.2
+0.075
−0.025
dia. hole
*1 Stainless-steel plunger
*2 Incomplete screw part with a maximum length of 1.5 mm.
*1 Stainless-steel roller
*2 Incomplete screw part with a maximum length of 1.5 mm.
*1 Stainless-steel roller
*2 Incomplete screw part with a maximum length of 1.5 mm.
3.92 to 6.13 N
21.8±0.8 mm
A-20GQ-B
1.3 mm
5.6 mm
0.2 mm
2.79 N
* Stainless-steel plunger
17.45±0.2
8.35 dia.
11.2 dia.
2.3 dia.
15 dia.
7.15
dia.
2.3SR *
12.7 dia. × 4.8 *1
11.9SR *
11.9SR *1
12.7 dia. × 4.8 *1
M12 × 1 mounting screw
* Stainless-steel plunger
24.2
Two hexagon nuts
(3 t × 17 width across flats)
7.5
M12 × 1 mounting screw
M12 × 1 mounting screw
Two hexagon nuts
(3 t × 17 width across flats)
9.2
Two hexagon nuts
(2 t × 14 width across flats)
Two lock nuts
(2 t × 15.6 width across flats)
24.2
A-20GQ22-B
33.4±1.2 mm
6.18 N max.
3.58 mm
0.35 mm
1.3 mm
2.75 N
Note: Do not use both M12
Note: Do not use both M12
Note: Do not use both M12
mounting screw and
mounting holes at the
same time.
mounting screw and
mounting holes at the
same time.
mounting screw and
mounting holes at the
same time.
A-20GQ21-B
33.4±1.2 mm
6.18 N max.
3.58 mm
0.35 mm
1.3 mm
2.75 N
A
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