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SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA 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: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QOB Series Miniature Circuit Breaker (MPN QOB220EPD) is a 20 A, single-phase, bolt-on unit rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. This 2-pole breaker is designed for use…

SKU 3G-OTH-22731

Brand
SQUARE D
Item
Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
Category
QOB Series, Bolt-On 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
QOB220EPD
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
20 A
Phase
Single
Poles
2
For Use With
QO Load Centers and NQ Panelboards
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 QOB Series Miniature Circuit Breaker (MPN QOB220EPD) is a 20 A, single-phase, bolt-on unit rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. This 2-pole breaker is designed for use with QO Load Centers and NQ Panelboards.

Frequently Asked Questions

What is the SQUARE D QOB220EPD miniature circuit breaker used for?

The SQUARE D QOB220EPD is a 20 A, 2-pole bolt-on circuit breaker for single-phase 120/240V AC systems. It protects branch circuits in QO Load Centers and NQ Panelboards, commonly used in commercial and industrial electrical distribution panels.

What are the specifications of the SQUARE D QOB220EPD?

The SQUARE D QOB220EPD is a 20 A, single-phase, 2-pole bolt-on breaker rated 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is designed for use with QO Load Centers and NQ Panelboards.

Where to buy the SQUARE D QOB220EPD worldwide?

3G Electric supplies the SQUARE D QOB220EPD miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the SQUARE D QOB220EPD circuit breaker?

Install the SQUARE D QOB220EPD by bolting it into a compatible QO Load Center or NQ Panelboard. Ensure power is off, verify voltage and amp ratings match the circuit, and torque terminals per manufacturer guidelines. Always follow local electrical codes.

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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Cross-referenced by specification & description
SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC, 2 Poles (MPN QOB2201021)
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