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SQUARE D Molded Case Circuit Breaker: 125 A Amps, 25kA at 277/408V AC, Fixed, ABC - B-Frame Square D Molded Case Circuit Breakers
SQUARE DB-Frame Square D Molded Case Circuit Breakers

SQUARE D Molded Case Circuit Breaker: 125 A Amps, 25kA at 277/408V AC, Fixed, ABC

The Square D BDA34125Y is a 3-pole B-Frame Molded Case Circuit Breaker rated 125 A at 277/480V AC, with a maximum AIR rating of 25kA at 277/408V AC. It features a fixed instantaneous trip, ABC phase connection, and…

SKU 3G-OTH-609811

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 125 A Amps, 25kA at 277/408V AC, Fixed, ABC
Category
B-Frame Square D Molded Case Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
BDA34125Y
Series
BDA
Type
25kA at 277/408V AC, Fixed, ABC, BDA
AC
277/480V
Poles
3
Max. AIR Rating
25kA at 277/408V AC
Phase Connection
ABC
Instantaneous Trip
Fixed
Terminal Connection
Al Mechanical Lug OFF End
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D BDA34125Y is a 3-pole B-Frame Molded Case Circuit Breaker rated 125 A at 277/480V AC, with a maximum AIR rating of 25kA at 277/408V AC. It features a fixed instantaneous trip, ABC phase connection, and aluminum mechanical lug terminal connection on the load end.

Frequently Asked Questions

What is the Square D BDA34125Y molded case circuit breaker used for?

The Square D BDA34125Y is a 3-pole B-Frame molded case circuit breaker rated 125 A at 277/480V AC. It protects industrial electrical circuits from overloads and short circuits, with a 25kA interrupting rating at 277/408V AC. Common in manufacturing plants, HVAC systems, and power distribution panels.

What are the specifications of the Square D BDA34125Y circuit breaker?

The Square D BDA34125Y is a 3-pole B-Frame breaker rated 125 A at 277/480V AC. It has a maximum AIR rating of 25kA at 277/408V AC, fixed instantaneous trip, ABC phase connection, and aluminum mechanical lug terminal connection on the load end. Series BDA, MPN BDA34125Y.

Where to buy the Square D BDA34125Y circuit breaker worldwide?

3G Electric supplies the Square D BDA34125Y 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 BDA series breaker.

How to select the correct Square D BDA series circuit breaker for an application?

To select the correct Square D BDA series breaker like the BDA34125Y, match the voltage (277/480V AC), current rating (125 A), pole count (3), and interrupting capacity (25kA at 277/408V AC) to your system requirements. Verify phase connection (ABC) and terminal type (aluminum mechanical lug). Consult a licensed electrician for code compliance.

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 b-frame square d molded case 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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