SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
The SQUARE D QO3501021 is a 50 A, three-phase, plug-in miniature circuit breaker from the QO Series, rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with QO Load Centers and…
SKU 3G-OTH-21991
Also listed as: QO 3501021 · QO-3501021
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 QO3501021 is a 50 A, three-phase, plug-in miniature circuit breaker from the QO Series, rated for 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 3-pole breaker provides overcurrent protection in industrial electrical distribution systems.
Frequently Asked Questions
What is the SQUARE D QO3501021 miniature circuit breaker used for?
The SQUARE D QO3501021 provides overcurrent protection in industrial electrical distribution systems. It is a 50 A, three-phase, plug-in breaker rated for 120/240V AC with a 10kA interrupting rating, designed for use with QO Load Centers and NQ Panelboards.
What are the specifications of the SQUARE D QO3501021 circuit breaker?
The SQUARE D QO3501021 is a 50 A, three-phase, 3-pole 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 installation in QO Load Centers and NQ Panelboards.
Where to buy the SQUARE D QO3501021 circuit breaker worldwide?
3G Electric supplies the SQUARE D QO3501021 miniature circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine SQUARE D QO Series breakers for your industrial electrical distribution needs.
How to install the SQUARE D QO3501021 circuit breaker?
Install the SQUARE D QO3501021 by plugging it into a compatible QO Load Center or NQ Panelboard. Ensure the panel is de-energized, align the breaker with the bus bar, and press firmly until it snaps into place. Always follow local electrical codes and manufacturer guidelines.
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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.
