SQUARE D QOB3501021 Miniature Circuit Breaker
The SQUARE D QOB Series Miniature Circuit Breaker (MPN QOB3501021) is a 50 A, three-phase, bolt-on circuit breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with Square…
SKU 3G-OTH-23249
Also listed as: QOB 3501021 · QOB-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 QOB Series Miniature Circuit Breaker (MPN QOB3501021) is a 50 A, three-phase, bolt-on circuit breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with Square D NQOD panelboards, this 3-pole breaker provides overcurrent protection in industrial electrical distribution systems.
Frequently Asked Questions
What is the SQUARE D QOB3501021 miniature circuit breaker used for?
The SQUARE D QOB3501021 is a 50 A, three-phase, bolt-on miniature circuit breaker used for overcurrent protection in industrial electrical distribution systems. It is designed for use with Square D NQOD panelboards and is rated for 120/240V AC with a 10kA interrupting capacity.
What are the specifications of the SQUARE D QOB3501021 circuit breaker?
The SQUARE D QOB3501021 is a 50 A, three-phase, 3-pole miniature circuit breaker rated for 120/240V AC. It has a maximum AIR rating of 10kA at 120/240V AC and is a bolt-on type designed for use with Square D NQOD panelboards. The brand is SQUARE D.
Where to buy the SQUARE D QOB3501021 circuit breaker worldwide?
3G Electric supplies the SQUARE D QOB3501021 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this 50 A, three-phase breaker for your electrical distribution needs.
How to install the SQUARE D QOB3501021 circuit breaker?
Install the SQUARE D QOB3501021 by turning off power, then bolting the 3-pole breaker into a compatible Square D NQOD panelboard. Ensure the 50 A rating matches your circuit load and that the 120/240V AC supply is disconnected. Follow local electrical codes and use proper personal protective equipment.
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Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D qob series, bolt-on square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
