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OMRON A-20GQ21 Plunger Snap-Action Switch - Plunger Snap-Action Switches
OMRONPlunger Snap-Action Switches

OMRON A-20GQ21 Plunger Snap-Action Switch

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

Also listed as: A20GQ21 · A 20GQ21

Brand
OMRON
Item
A-20GQ21 Plunger Snap-Action Switch
Part Number
A-20GQ21
Category
Plunger Snap-Action Switches
Available to Order
Also known as:A-20GQ21OMRON
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OMRON
Manufacturer Part Number
A-20GQ21
Series
A
AC Contact Rating
20 A @ 480 V
Electrical Connection
Solder

Technical Documents

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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
Industrial control panels — Omron G7L series power relays for switching high-current loads up to 30 A
HVAC equipment — Omron MJN series relays with 240 V AC coils for compressor and fan control
Process automation — Omron G3NA solid-state relays for silent, high-cycle switching of heaters
Material handling — Omron photoelectric and proximity sensors for position detection and counting
Machine safety — Omron safety relays and interlock switches for guard door monitoring
Power distribution — Omron surface-mounted relays with finger-safe terminals for branch circuit control
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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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