SQUARE D Miniature Circuit Breaker: 20 A, 120V AC, Single Phase, 10kA at 120/240V AC
The SQUARE D QO Series Miniature Circuit Breaker (MPN QO120HM) is a 20 A, single-phase, plug-in breaker rated for 120V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and NQ…
SKU 3G-OTH-21604
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 QO Series Miniature Circuit Breaker (MPN QO120HM) is a 20 A, single-phase, plug-in breaker rated for 120V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and NQ Panelboards, this 1-pole device provides overcurrent protection in industrial electrical distribution systems.
Frequently Asked Questions
What is the SQUARE D QO120HM miniature circuit breaker used for?
The SQUARE D QO120HM is a 20 A, single-phase, 1-pole miniature circuit breaker used for overcurrent protection in industrial electrical distribution systems. It is designed for use with QO Load Centers and NQ Panelboards, providing reliable branch circuit protection in commercial and industrial facilities.
What are the specifications of the SQUARE D QO120HM circuit breaker?
The SQUARE D QO120HM is rated 20 A, 120V AC, single-phase, with a maximum AIR rating of 10kA at 120/240V AC. It is a plug-in type breaker for use with QO Load Centers and NQ Panelboards. The manufacturer part number is QO120HM, and it is part of the QO Series by SQUARE D.
Where to buy the SQUARE D QO120HM circuit breaker worldwide?
3G Electric supplies the SQUARE D QO120HM miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this genuine SQUARE D QO Series breaker to any country.
How to install the SQUARE D QO120HM circuit breaker?
To install the SQUARE D QO120HM, ensure the panel is de-energized. Align the breaker's plug-in tabs 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 operates freely. Always follow local electrical codes and use appropriate personal protective equipment.
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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.
