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SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Three Phase, 22kA at 120/240V AC - QOB Series, Bolt-On Square D Miniature Circuit Breakers
SQUARE DQOB Series, Bolt-On Square D Miniature Circuit Breakers

SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Three Phase, 22kA at 120/240V AC

The SQUARE D QOB Series Miniature Circuit Breaker (MPN QOB350VH) is a 50 A, three-phase, bolt-on circuit breaker rated for 120/240V AC with a maximum AIR rating of 22kA at 120/240V AC. It is designed for use with…

SKU 3G-OTH-23257

Brand
SQUARE D
Item
Miniature Circuit Breaker: 50 A, 120/240V AC, Three Phase, 22kA at 120/240V AC
Category
QOB Series, Bolt-On Square D Miniature Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QOB350VH
Type
Three Phase, 22kA at 120/240V AC
AC
120/240V
Amps
50 A
Phase
Three
Poles
3
For Use With
Square D NQOD Panelboards
Max. AIR Rating
22kA at 120/240V AC
AC Voltage Rating
120/240V AC
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D QOB Series Miniature Circuit Breaker (MPN QOB350VH) is a 50 A, three-phase, bolt-on circuit breaker rated for 120/240V AC with a maximum AIR rating of 22kA at 120/240V AC. It is designed for use with Square D NQOD Panelboards.

Frequently Asked Questions

What is the SQUARE D QOB350VH miniature circuit breaker used for?

The SQUARE D QOB350VH is a 50 A, three-phase, bolt-on miniature circuit breaker rated for 120/240V AC. It is designed for overcurrent protection in Square D NQOD panelboards, commonly used in commercial and industrial electrical distribution systems.

What are the specifications of the SQUARE D QOB350VH circuit breaker?

The SQUARE D QOB350VH is a 50 A, three-phase, bolt-on miniature circuit breaker with an AC voltage rating of 120/240V AC and a maximum AIR rating of 22kA at 120/240V AC. It is part of the QOB Series and is designed for use with Square D NQOD panelboards.

Where to buy the SQUARE D QOB350VH circuit breaker worldwide?

3G Electric supplies the SQUARE D QOB350VH miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the SQUARE D QOB350VH circuit breaker?

Install the SQUARE D QOB350VH by bolting it securely into a compatible Square D NQOD panelboard. Ensure the circuit is de-energized before installation. Follow standard electrical safety practices and local codes. Torque terminal connections to manufacturer specifications.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE 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.

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