SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
The SQUARE D QO Series Miniature Circuit Breaker (MPN QO1201021) is a 20 A, single-phase, plug-in type circuit breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is designed for use…
SKU 3G-OTH-21510
Also listed as: QO 1201021 · QO-1201021
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
Need installation or engineering help?
Ask a question
Product Description
The SQUARE D QO Series Miniature Circuit Breaker (MPN QO1201021) is a 20 A, single-phase, plug-in type circuit breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is designed for use with QO Load Centers and NQ Panelboards.
Frequently Asked Questions
What is the SQUARE D QO1201021 miniature circuit breaker used for?
The SQUARE D QO1201021 is a 20 A, single-phase, plug-in miniature circuit breaker rated for 120/240V AC. It protects branch circuits in residential and commercial QO Load Centers and NQ Panelboards from overloads and short circuits, with a 10kA interrupting capacity at 120/240V AC.
What are the specifications of the SQUARE D QO1201021 circuit breaker?
The SQUARE D QO1201021 is a 1-pole, 20 A, single-phase miniature circuit breaker rated 120/240V AC. It has a maximum AIR rating of 10kA at 120/240V AC and is designed for plug-in use with QO Load Centers and NQ Panelboards. The brand is SQUARE D.
Where to buy the SQUARE D QO1201021 circuit breaker worldwide?
3G Electric supplies the SQUARE D QO1201021 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine SQUARE D part.
How to install the SQUARE D QO1201021 circuit breaker?
To install the SQUARE D QO1201021, ensure the load center is de-energized. Align the breaker's plug-in tabs with the bus bar in a QO Load Center or NQ Panelboard, then press firmly until it snaps into place. Verify the 20 A rating matches the circuit requirements before energizing.
Used in
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.
