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OMRON A20GQ21B Industrial Snap Action Switch

This unsealed snap action switch features a panel mount cross roller plunger actuator and SPDT contact configuration for reliable switching in various industrial applications. Rated for 20A at 250 VAC, it is suitable for controlling motors, lamps, and solenoids with large inrush currents. Designed with screw terminal termination, it boasts a mechanical life of at least 1 million cycles and an electrical service life of over 500,000 cycles. Its robust construction ensures durability, vibration resistance, and long-term performance in different environments, making it ideal for automation and control systems.

Authorized Distributors
Source:Newark
Part No:A-20GQ21-B
Stock:99
Inv Date:05-28-2026
Price: Unit price: $45.86
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Source:DigiKey
Part No:A-20GQ21-B
Stock:7
Inv Date:05-28-2026
Price: Unit price: $43.37
Buy/RFQ:
Source:DigiKey
Part No:A20GQ21B
Stock:7
Inv Date:05-28-2026
Price: Unit price: $43.37
Buy/RFQ:
Part No:A-20GQ21-B
Stock:3
Inv Date:05-29-2026
Price: Unit price: $42.04
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Part No:A-20GQ21-B
Stock:0
Inv Date:05-28-2026
Price: Unit price: $38.58
Buy/RFQ:
Part No:A20GQ21B
Stock:0
Inv Date:05-28-2026
Price: Unit price: $28.49
Buy/RFQ:
Part No:A20GQ21B
Stock:0
Inv Date:05-28-2026
Price: Unit price: $28.49
Buy/RFQ:

OMRON A20GQ21B Industrial Snap Action Switch Specifications:

  • Contact configuration: SPDT
  • Rated current: 20A at 250 VAC
  • Mechanical life: 1,000,000 cycles min.
  • Electrical service life: 500,000 cycles min.
  • Operating speed: 0.01 mm to 1 m/sec
  • Contact resistance: 5 mΩ max.
  • Insulation resistance: 100 MΩ min. at 500 VDC
  • Dielectric strength: 1000 VAC between non-continuous terminals, 2000 VAC between each terminal and ground
  • Vibration durability: 10 to 55 Hz, 1.5 mm double amplitude
  • Shock durability: 100 g min.
  • Operating temperature: -25°C to 80°C
  • Humidity: 35% to 85% RH
  • Weight: approximately 70 grams
  • Terminals: screw terminal

Buy the Omron A20GQ21B – Reliable Control Switch for Industrial Applications

Order the Omron A20GQ21B control switch online today and enhance your automation setup with this durable, high-capacity snap action switch. Designed for long-lasting performance with a mechanical life of over 1 million cycles and rated for 20A at 250 VAC. Its robust construction and screw terminal wiring make installation quick and reliable, suitable for motors, lamps, and solenoids with large inrush currents. Improve your system’s stability and safety by choosing this trusted control component available for fast delivery online.

Buy Omron A20GQ21B now and experience unmatched reliability and performance in your control and automation systems.

Frequently Asked Questions

Where can I buy OMRON A20GQ21B?

You can click on the BUY or RFQ button to purchase A20GQ21B from an authorized OMRON distributor.

How do I troubleshoot issues or seek technical support for part A20GQ21B?

You can download the A20GQ21B datasheet or visit the OMRON website for support.

Who is the manufacturer of A20GQ21B?

OMRON

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