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SQUARE D Miniature Circuit Breaker: 50 A, 120/240V AC, Three 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: 50 A, 120/240V AC, Three Phase, 10kA at 120/240V AC

The SQUARE D QOU Series Unit-Mount Miniature Circuit Breaker (MPN QOU3501021) is a three-phase, 50 A, 120/240V AC device with a maximum AIR rating of 10kA at 120/240V AC. This 3-pole breaker is designed for use with…

SKU 3G-OTH-23228

Brand
SQUARE D
Item
Miniature Circuit Breaker: 50 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
Category
QOU Series, Unit-Mount Square D Miniature Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QOU3501021
Type
Three Phase, 10kA at 120/240V AC
AC
120/240V
Amps
50 A
Phase
Three
Poles
3
For Use With
Heating
Max. AIR Rating
10kA 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 QOU3501021) is a three-phase, 50 A, 120/240V AC device with a maximum AIR rating of 10kA at 120/240V AC. This 3-pole breaker is designed for use with heating applications.

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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SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 2 Poles (MPN QOU220). Key specifications — Phase: Single; Amps: 20 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 10kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.
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SQUARE D Miniature Circuit Breaker: 100 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 1 Poles (MPN QOU1100). Key specifications — Phase: Single; Amps: 100 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 10kA at 120/240V AC; For Use With: Air Conditioning and Refrigeration Equipment; Brand: SQUARE D.
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SQUARE D Miniature Circuit Breaker: 15 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 1 Poles (MPN QOU115). Key specifications — Phase: Single; Amps: 15 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 10kA at 120/240V AC; For Use With: Air Conditioning and Refrigeration Equipment; Brand: SQUARE D.
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SQUARE D Miniature Circuit Breaker: 40 A, 120/240V AC, Three Phase, 10kA at 120/240V AC, 3 Poles (MPN QOU340). Key specifications — Phase: Three; Amps: 40 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 10kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.
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SQUARE D Miniature Circuit Breaker: 40 A, 120/240V AC, Three Phase, 10kA at 120/240V AC, 3 Poles (MPN QOU340). Key specifications — Phase: Three; Amps: 40 A; AC Voltage Rating: 120/240V AC; Max. AIR Rating: 10kA at 120/240V AC; For Use With: Heating; Brand: SQUARE D.