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OMRON Snap Action Switch: Plunger Actuator, 1NO/1NC - Plunger Snap-Action Switches
OMRONPlunger Snap-Action Switches

OMRON Snap Action Switch: Plunger Actuator, 1NO/1NC

The OMRON Snap Action Switch with Plunger Actuator (MPN A-20GQ21) is a plunger snap-action switch from the OMRON Series A. It features a 1NO/1NC contact configuration and an AC contact rating of 20 A @ 480 V, with a…

SKU 3G-OTH-40373

Brand
OMRON
Item
Snap Action Switch: Plunger Actuator, 1NO/1NC
Category
Plunger Snap-Action Switches
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Technical Specifications

OMRON
Manufacturer Part Number
A-20GQ21
Series
A
AC Contact Rating
20 A @ 480 V
Electrical Connection
Solder
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OMRON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OMRON Snap Action Switch with Plunger Actuator (MPN A-20GQ21) is a plunger snap-action switch from the OMRON Series A. It features a 1NO/1NC contact configuration and an AC contact rating of 20 A @ 480 V, with a solder electrical connection.

Frequently Asked Questions

What is the OMRON A-20GQ21 snap action switch used for?

The OMRON A-20GQ21 snap action switch is used for industrial control and automation applications requiring reliable position sensing or limit switching. Its plunger actuator and 1NO/1NC contacts make it suitable for machine tools, conveyors, and packaging equipment where precise actuation and high electrical load handling are needed.

What are the specifications of the OMRON A-20GQ21 switch?

The OMRON A-20GQ21 is a Series A snap action switch with a plunger actuator. It has a 1NO/1NC contact configuration and an AC contact rating of 20 A @ 480 V. The electrical connection is solder type. This OMRON switch is designed for durable, high-current switching in industrial environments.

Where to buy the OMRON A-20GQ21 switch worldwide?

You can source the OMRON A-20GQ21 snap action switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on this OMRON switch.

How to install the OMRON A-20GQ21 plunger switch?

Install the OMRON A-20GQ21 by mounting it securely using the provided holes, ensuring the plunger aligns with the actuating mechanism. Solder wires to the common, normally open, and normally closed terminals per your circuit. Verify the actuator travel and electrical rating (20 A @ 480 V AC) before energizing.

Used in

Common applications for OMRON
Automotive assembly lines — OMRON G2RV-ST500 AC/DC24 slim relays for compact control panel switching
Packaging machinery — OMRON E2E-X5Y1-M1 inductive proximity sensors for position detection of metal parts
HVAC systems — OMRON LY4-DC12 general-purpose relays for fan and compressor control
High-temperature ovens — OMRON E32-D51 fiber-optic cables for non-contact temperature sensing
Material handling — OMRON D4CC3002 limit switches for conveyor belt end-of-travel detection
Machine tool safety — OMRON TZ-1GV22 snap-action switches for interlock and guard monitoring

OMRON Products

3G Electric supplies OMRON plunger snap-action switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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