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SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Single Phase, 22kA at 120/240V AC - QOU Series, Unit-Mount Square D Miniature Circuit Breakers
SQUARE DQOU Series, Unit-Mount Square D Miniature Circuit Breakers

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

The SQUARE D QOU Series Unit-Mount Miniature Circuit Breaker (MPN QOU250VH) is a 50 A, single-phase, 2-pole device rated for 120/240V AC with a maximum AIR rating of 22kA at 120/240V AC. Designed for use with heating…

SKU 3G-OTH-23222

Brand
SQUARE D
Item
Miniature Circuit Breaker: 50 A, 120/240V AC, Single Phase, 22kA at 120/240V AC
Category
QOU Series, Unit-Mount Square D Miniature Circuit Breakers
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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.

Technical Specifications

SQUARE D
Manufacturer Part Number
QOU250VH
Type
Single Phase, 22kA at 120/240V AC
AC
120/240V
Amps
50 A
Phase
Single
Poles
2
For Use With
Heating
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 QOU Series Unit-Mount Miniature Circuit Breaker (MPN QOU250VH) is a 50 A, single-phase, 2-pole device rated for 120/240V AC with a maximum AIR rating of 22kA at 120/240V AC. Designed for use with heating applications, this unit-mount breaker provides overcurrent protection in a compact form factor.

Frequently Asked Questions

What is the SQUARE D QOU250VH miniature circuit breaker used for?

The SQUARE D QOU250VH is a 50 A, 2-pole miniature circuit breaker designed for overcurrent protection in single-phase heating applications. It is rated for 120/240V AC with a 22kA interrupting rating at 120/240V AC, making it suitable for residential and light commercial heating equipment.

What are the specifications of the SQUARE D QOU250VH?

The SQUARE D QOU250VH is a QOU Series unit-mount miniature circuit breaker with 50 A current rating, 2 poles, single-phase, 120/240V AC voltage rating, and a maximum AIR rating of 22kA at 120/240V AC. It is intended for use with heating applications and is manufactured by SQUARE D.

Where to buy the SQUARE D QOU250VH worldwide?

3G Electric supplies the SQUARE D QOU250VH miniature circuit breaker worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this SQUARE D QOU Series breaker.

How to select the right SQUARE D QOU Series breaker for heating?

For heating applications, select a SQUARE D QOU Series breaker matching your system's voltage (120/240V AC), current rating (e.g., 50 A), and phase (single). Ensure the interrupting rating (22kA) exceeds available fault current. The QOU250VH is a 2-pole unit-mount option. Always consult local codes and a qualified electrician.

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 qou series, unit-mount 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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