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SQUARE D Molded Case Circuit Breaker: 45 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: 45 A Amps, 25kA at 277/408V AC, Fixed, ABC

The Square D BDA34045Y is a 3-pole, 45 A B-Frame Molded Case Circuit Breaker rated 525V AC with a maximum AIR rating of 25kA at 277/408V AC. It features fixed instantaneous trip, ABC phase connection, and I-Line ON…

SKU 3G-OTH-722172

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 45 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
BDA34045Y
Series
BDA
Type
25kA at 277/408V AC, Fixed, ABC, BDA
AC
525V
Poles
3
Max. AIR Rating
25kA at 277/408V AC
Phase Connection
ABC
Instantaneous Trip
Fixed
Terminal Connection
I-Line ON End
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D BDA34045Y is a 3-pole, 45 A B-Frame Molded Case Circuit Breaker rated 525V AC with a maximum AIR rating of 25kA at 277/408V AC. It features fixed instantaneous trip, ABC phase connection, and I-Line ON End terminal connection, part of the BDA 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 BDA34045Y molded case circuit breaker used for?

The Square D BDA34045Y is a 3-pole, 45 A B-Frame molded case circuit breaker used for overcurrent protection in industrial power distribution panels and switchboards. It is rated 525V AC with a 25kA interrupting capacity at 277/408V AC, making it suitable for branch circuit protection in commercial and industrial facilities.

What are the specifications of the Square D BDA34045Y circuit breaker?

The Square D BDA34045Y is a 45 A, 3-pole B-Frame molded case circuit breaker rated 525V AC. It has a maximum AIR rating of 25kA at 277/408V AC, fixed instantaneous trip, ABC phase connection, and I-Line ON End terminal connection. It is part of the BDA series with MPN BDA34045Y.

Where to buy the Square D BDA34045Y circuit breaker worldwide?

3G Electric supplies the Square D BDA34045Y 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 BDA34045Y, verify the system voltage (525V AC max), continuous current (45 A), and available fault current (25kA at 277/408V AC). Confirm the phase connection (ABC), pole count (3), and terminal type (I-Line ON End). Always consult a licensed electrician for proper coordination.

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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Molded Case Circuit Breaker: 50 A Amps, 25kA at 277/408V AC, Fixed, Everlink Lug Both Ends, 2 Poles (MPN BDL26050LU). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: Non-Applicable; Max. AIR Rating: 25kA at 277/408V AC; Instantaneous Trip: Fixed; Series: BDL.
Molded Case Circuit Breaker: 100 A Amps, 25kA at 277/408V AC, Fixed, Everlink Lug Both Ends, ABC (MPN BDL36100). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: ABC; Max. AIR Rating: 25kA at 277/408V AC; Instantaneous Trip: Fixed; Series: BDL.
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Molded Case Circuit Breaker: 70 A Amps, 25kA at 277/408V AC, Fixed, AB, 2 Poles, 525V AC, BDA (MPN BDA260701). Key specifications — Terminal Connection: I-Line ON End; Phase Connection: AB; Max. AIR Rating: 25kA at 277/408V AC; Instantaneous Trip: Fixed; Series: BDA.
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Molded Case Circuit Breaker: 45 A Amps, 100kA at 240V AC, Fixed, ABC, 3 Poles, 525V AC, BGA (MPN BGA34045Y). Key specifications — Terminal Connection: I-Line ON End; Phase Connection: ABC; Max. AIR Rating: 100kA at 240V AC; Instantaneous Trip: Fixed; Series: BGA.
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Molded Case Circuit Breaker: 35 A Amps, 100kA at 240V AC, Fixed, Everlink Lug Both Ends, ABC, BGL (MPN BGL36035). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: ABC; Max. AIR Rating: 100kA at 240V AC; Instantaneous Trip: Fixed; Series: BGL.
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