SQUARE D Miniature Circuit Breaker: 30 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
The SQUARE D QO3301021 is a three-pole, 30 A miniature circuit breaker from the QO Series, designed for plug-in installation in QO Load Centers and NQ Panelboards. It is rated for 120/240V AC with a maximum AIR…
SKU 3G-OTH-21789
Also listed as: QO 3301021 · QO-3301021
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
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Product Description
The SQUARE D QO3301021 is a three-pole, 30 A miniature circuit breaker from the QO Series, designed for plug-in installation in QO Load Centers and NQ Panelboards. It is rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC, supporting three-phase applications.
Frequently Asked Questions
What is the SQUARE D QO3301021 miniature circuit breaker used for?
The SQUARE D QO3301021 is a three-pole, 30 A miniature circuit breaker from the QO Series. It is used for overcurrent protection in three-phase, 120/240V AC applications, typically installed in QO Load Centers and NQ Panelboards in commercial and industrial electrical distribution systems.
What are the specifications of the SQUARE D QO3301021?
The SQUARE D QO3301021 is a 30 A, three-pole miniature circuit breaker rated for 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 manufacturer part number is QO3301021.
Where to buy the SQUARE D QO3301021 worldwide?
3G Electric supplies the SQUARE D QO3301021 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 QO Series breaker to any country.
How to install the SQUARE D QO3301021 circuit breaker?
To install the SQUARE D QO3301021, ensure the panel is de-energized. Align the breaker's plug-in base with the bus bar in a QO Load Center or NQ Panelboard, then press firmly until it snaps into place. Verify the breaker is fully seated and the handle operates freely before restoring power.
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.
