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SQUARE D Miniature Circuit Breaker: 20 A, 120/208V AC, Three Phase, 10kA at 208/120V 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: 20 A, 120/208V AC, Three Phase, 10kA at 208/120V AC

The SQUARE D QOB Series QOB320GFI is a three-phase, bolt-on miniature circuit breaker rated for 20 A at 120/208V AC. It has a maximum AIR rating of 10kA at 208/120V AC and is designed for use with QO Load Centers and…

SKU 3G-OTH-22718

Brand
SQUARE D
Item
Miniature Circuit Breaker: 20 A, 120/208V AC, Three Phase, 10kA at 208/120V AC
Category
QOB Series, Bolt-On Square D Miniature Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QOB320GFI
Type
Three Phase, 10kA at 208/120V AC
AC
120/208V
Amps
20 A
Phase
Three
Poles
3
For Use With
QO Load Centers and NQ Panelboards
Max. AIR Rating
10kA at 208/120V AC
AC Voltage Rating
120/208V AC
View Full Spec Sheet

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

Product Description

The SQUARE D QOB Series QOB320GFI is a three-phase, bolt-on miniature circuit breaker rated for 20 A at 120/208V AC. It has a maximum AIR rating of 10kA at 208/120V AC and is designed for use with QO Load Centers and NQ Panelboards.

Frequently Asked Questions

What is the SQUARE D QOB320GFI miniature circuit breaker used for?

The SQUARE D QOB320GFI is a three-phase, bolt-on miniature circuit breaker used for overcurrent protection in QO Load Centers and NQ Panelboards. It is rated 20 A at 120/208V AC with a 10kA interrupting rating, making it suitable for commercial and industrial electrical distribution systems.

What are the specifications of the SQUARE D QOB320GFI?

The SQUARE D QOB320GFI is a 3-pole, three-phase miniature circuit breaker rated 20 A at 120/208V AC. It has a maximum AIR rating of 10kA at 208/120V AC and is designed for use with QO Load Centers and NQ Panelboards. The manufacturer part number is QOB320GFI.

Where to buy the SQUARE D QOB320GFI worldwide?

3G Electric supplies the SQUARE D QOB320GFI miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this SQUARE D breaker to any country.

How to install the SQUARE D QOB320GFI circuit breaker?

To install the SQUARE D QOB320GFI, ensure the panel is de-energized. Bolt the breaker securely into a QO Load Center or NQ Panelboard, connect line and load conductors to the appropriate terminals, and torque to manufacturer specifications. Always follow local electrical codes and use qualified personnel.

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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