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

The Square D QDA221252 is a 125 A molded case circuit breaker for I-Line panelboards, with 2 poles, 240V AC, and a 25kA at 240V AC maximum AIR rating. It features fixed instantaneous trip and lug terminal…

SKU 3G-OTH-609664

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

SQUARE D
Manufacturer Part Number
QDA221252
Series
QD
Type
25kA at 240V AC, Fixed, Lug, AC, QD
AC
240V
Poles
2
Max. AIR Rating
25kA at 240V AC
Phase Connection
AC
Instantaneous Trip
Fixed
Terminal Connection
Lug
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D QDA221252 is a 125 A molded case circuit breaker for I-Line panelboards, with 2 poles, 240V AC, and a 25kA at 240V AC maximum AIR rating. It features fixed instantaneous trip and lug terminal connections, part of the QD series.

Frequently Asked Questions

What is the Square D QDA221252 molded case circuit breaker used for?

The Square D QDA221252 is a 125 A molded case circuit breaker designed for I-Line panelboards in commercial and industrial power distribution. It provides overcurrent protection for branch circuits and equipment, with a 25kA at 240V AC interrupting rating and fixed instantaneous trip.

What are the specifications of the Square D QDA221252?

The Square D QDA221252 is a 2-pole, 125 A molded case circuit breaker rated 240V AC with a maximum AIR rating of 25kA at 240V AC. It features fixed instantaneous trip, lug terminal connections, and is part of the QD series. The manufacturer part number is QDA221252.

Where to buy the Square D QDA221252 worldwide?

3G Electric supplies the Square D QDA221252 molded case circuit breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this QD series breaker for I-Line panelboards.

How to select the right Square D QDA221252 for your panelboard?

To select the Square D QDA221252, verify your I-Line panelboard accepts QD series breakers. Confirm the voltage is 240V AC, the load current is 125 A or less, and the available fault current does not exceed 25kA at 240V AC. Use lug terminals for copper or aluminum conductors.

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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