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General-purpose Basic Switch
High-capacity Switch Capable of Handling 20 A Loads with Large Inrush Currents
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Quick links OMRON IA Basic Switches in your country.
Please contact Europe headquarters.
Terminals
Screw Terminals (-B)
Solder Terminal (-A)
("-A" is not included in the model numbers.)
Note:
1. Appropriate terminal screw tightening torque: 0.78 to 1.18 N·m.
2. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Mounting Holes
Use M4 mounting screws with plane washers or spring washers to securely mount the Switch. Tighten the screws to a torque of 1.18 to 1.47 N·m.
The Switch can be panel mounted, provided that the hexagonal nut of the actuator is tightened to a torque of 2.94 to 4.9 N·m.
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.)
Pin Plunger
A-20G-B
Short Spring Plunger
A-20GD-B
Panel Mount Plunger
A-20GQ-B
Note: Do not use both M12 mounting screw and mounting holes at the same time.
Panel Mount Roller Plunger
A-20GQ22-B
Note: Do not use both M12 mounting screw and mounting holes at the same time.
Panel Mount Cross Roller Plunger
A-20GQ21-B
Note: Do not use both M12 mounting screw and mounting holes at the same time.
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Short Hinge Lever
A-20GV21-B
Hinge Lever
A-20GV-B
Short Hinge Roller Lever
A-20GV22-B
Hinge Roller Lever
A-20GV2-B
Note: Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.
Caution: All units are in millimeters unless otherwise indicated.