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SQUARE D Molded Case Circuit Breaker: 125 A Amps, 25kA at 240V AC, Fixed, Lug, AB - Square D Molded Case Circuit Breakers for I-Line Panelboards
SQUARE DSquare D Molded Case Circuit Breakers for I-Line Panelboards

SQUARE D Molded Case Circuit Breaker: 125 A Amps, 25kA at 240V AC, Fixed, Lug, AB

The Square D QDA221251 is a 125 A molded case circuit breaker for I-Line panelboards, with 2 poles, 240V AC, and a max. AIR rating of 25kA at 240V AC. It features a fixed instantaneous trip, lug terminal connection…

SKU 3G-OTH-721935

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 125 A Amps, 25kA at 240V AC, Fixed, Lug, AB
Category
Square D Molded Case Circuit Breakers for I-Line Panelboards
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Technical Specifications

SQUARE D
Manufacturer Part Number
QDA221251
Series
QD
Type
25kA at 240V AC, Fixed, Lug, AB, QD
AC
240V
Poles
2
Max. AIR Rating
25kA at 240V AC
Phase Connection
AB
Instantaneous Trip
Fixed
Terminal Connection
Lug
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D QDA221251 is a 125 A molded case circuit breaker for I-Line panelboards, with 2 poles, 240V AC, and a max. AIR rating of 25kA at 240V AC. It features a fixed instantaneous trip, lug terminal connection, and AB phase connection, part of the QD series.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Square D QDA221251 molded case circuit breaker used for?

The Square D QDA221251 is a 125 A molded case circuit breaker designed for I-Line panelboards in industrial and commercial power distribution systems. It provides overcurrent protection for branch circuits and equipment, with a 25kA interrupting rating at 240V AC and a fixed instantaneous trip.

What are the specifications of the Square D QDA221251 circuit breaker?

The Square D QDA221251 is a 2-pole, 125 A molded case circuit breaker rated at 240V AC with a max. AIR rating of 25kA at 240V AC. It features a fixed instantaneous trip, lug terminal connection, and AB phase connection. It is part of the QD series for I-Line panelboards.

Where to buy the Square D QDA221251 circuit breaker worldwide?

3G Electric supplies the Square D QDA221251 molded case circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this QD series breaker.

How to select the correct Square D QDA221251 circuit breaker for an I-Line panelboard?

To select the Square D QDA221251, verify your panelboard accepts QD series breakers and requires a 2-pole, 125 A, 240V AC device with a 25kA interrupting rating. Ensure the lug terminal connection and AB phase connection match your bus configuration. Consult Square D documentation for compatibility.

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 square d molded case circuit breakers for i-line panelboards. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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