SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
The SQUARE D QO320 is a three-pole, plug-in miniature circuit breaker from the QO Series, rated for 20 A at 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and NQ…
SKU 3G-OTH-21584
Also listed as: QO 320 · QO-320
Local availability & support
- 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.
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Product Description
The SQUARE D QO320 is a three-pole, plug-in miniature circuit breaker from the QO Series, rated for 20 A at 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and NQ Panelboards, this three-phase breaker provides overcurrent protection in a compact, plug-in format.
Frequently Asked Questions
What is the SQUARE D QO320 miniature circuit breaker used for?
The SQUARE D QO320 provides overcurrent protection in three-phase, 20 A, 120/240V AC electrical systems. It is designed for use with QO Load Centers and NQ Panelboards, making it suitable for commercial and industrial branch circuit protection where a compact, plug-in breaker is required.
What are the specifications of the SQUARE D QO320 circuit breaker?
The SQUARE D QO320 is a three-pole, plug-in miniature circuit breaker rated for 20 A at 120/240V AC. It has a maximum AIR rating of 10kA at 120/240V AC and is part of the QO Series. It is designed for use with QO Load Centers and NQ Panelboards.
Where to buy the SQUARE D QO320 circuit breaker worldwide?
3G Electric supplies the SQUARE D QO320 miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this three-pole, 20 A breaker.
How to install the SQUARE D QO320 circuit breaker?
To install the SQUARE D QO320, ensure the panel is de-energized. Align the plug-in breaker with the bus bar in a QO Load Center or NQ Panelboard and press firmly until it snaps into place. Verify the breaker is fully seated and the handle is in the OFF position before energizing.
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Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D qo series, plug-in square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
