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SQUARE D Miniature Circuit Breaker: 70 A, 120/240V AC, Single Phase, 10kA 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: 70 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QOU170 is a 70 A, single-phase miniature circuit breaker from the QOU Series, rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with heating applications, this…

SKU 3G-OTH-23283

Also listed as: QOU 170 · QOU-170

Brand
SQUARE D
Item
Miniature Circuit Breaker: 70 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
Category
QOU Series, Unit-Mount Square D Miniature Circuit Breakers
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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.

Technical Specifications

SQUARE D
Manufacturer Part Number
QOU170
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
70 A
Phase
Single
Poles
1
For Use With
Heating
Max. AIR Rating
10kA at 120/240V AC
AC Voltage Rating
120/240V AC

Technical Documents

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D QOU170 is a 70 A, single-phase miniature circuit breaker from the QOU Series, rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with heating applications, this unit-mount breaker features 1 pole and is manufactured by SQUARE D.

Frequently Asked Questions

What is the SQUARE D QOU170 miniature circuit breaker used for?

The SQUARE D QOU170 is a 70 A, single-phase miniature circuit breaker designed for heating applications. It provides overcurrent protection in residential and light commercial electrical panels, rated at 120/240V AC with a 10kA interrupting capacity.

What are the specifications of the SQUARE D QOU170?

The SQUARE D QOU170 is a 1-pole, 70 A miniature circuit breaker rated for 120/240V AC, single-phase. It has a maximum AIR rating of 10kA at 120/240V AC and is part of the QOU Series. It is intended for use with heating equipment.

Where to buy the SQUARE D QOU170 worldwide?

3G Electric supplies the SQUARE D QOU170 miniature circuit breaker worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the SQUARE D QOU170 miniature circuit breaker?

Install the SQUARE D QOU170 by ensuring the panel is de-energized, then snap the unit-mount breaker onto the DIN rail or panel bus. Connect line and load conductors to the terminals, torque to manufacturer specifications, and verify proper operation before restoring power.

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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