Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SQUARE D BDA34100Y B-Frame Molded Case Circuit Breaker - B-Frame Square D Molded Case Circuit Breakers
SQUARE DB-Frame Square D Molded Case Circuit Breakers

SQUARE D BDA34100Y B-Frame Molded Case Circuit Breaker

The Square D BDA34100Y is a 3-pole B-Frame Molded Case Circuit Breaker rated for 100 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…

SKU 3G-OTH-722019

Brand
SQUARE D
Item
BDA34100Y B-Frame Molded Case Circuit Breaker
Category
B-Frame Square D Molded Case Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SQUARE D
Manufacturer Part Number
BDA34100Y
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

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D BDA34100Y is a 3-pole B-Frame Molded Case Circuit Breaker rated for 100 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. This unit is part of the BDA series and is designed for fixed mounting in industrial power distribution applications.

Frequently Asked Questions

What is the Square D BDA34100Y molded case circuit breaker used for?

The Square D BDA34100Y is a 3-pole B-Frame molded case circuit breaker rated for 100 A at 277/480V AC. It protects industrial power distribution circuits from overloads and short circuits, with a fixed instantaneous trip and ABC phase connection for reliable branch-circuit protection.

What are the specifications of the Square D BDA34100Y?

The Square D BDA34100Y is a 3-pole B-Frame breaker rated 100 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.

Where to buy the Square D BDA34100Y worldwide?

3G Electric supplies the Square D BDA34100Y worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this BDA-series breaker to your facility. Contact us for availability and lead time on your order.

How to install the Square D BDA34100Y circuit breaker?

Install the Square D BDA34100Y in a fixed-mount panelboard or switchboard rated for 277/480V AC. Ensure the breaker is off, torque aluminum mechanical lugs to manufacturer specs, and verify ABC phase alignment. Follow NEC guidelines and consult a qualified electrician for safe installation.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SQUARE D

View all SQUARE D parts
This B-Frame molded case circuit breaker is rated for 100 A with a maximum interrupting rating of 25 kA at 277/408 V AC. It features a fixed instantaneous trip, Everlink lug connections on both ends, and ABC phase connection. Suitable for overcurrent protection in industrial electrical panels, branch circuits, and power distribution systems
SQUARE D
This B-Frame molded case circuit breaker is rated for 100 A with a maximum interrupting rating of 25 kA at 277/408 V AC. It features a fixed instantaneous trip, Everlink lug connections on both ends, and ABC phase connection. Suitable for overcurrent protection in industrial electrical panels, branch circuits, and power distribution systems
70 A, 2-pole B-Frame molded case circuit breaker from the BDA series. Rated 25kA at 277/408V AC and 525V AC, with fixed instantaneous trip, AB phase connection, and I-Line ON End terminal connection. Used for overcurrent protection in industrial power distribution panels and switchboards
SQUARE D
70 A, 2-pole B-Frame molded case circuit breaker from the BDA series. Rated 25kA at 277/408V AC and 525V AC, with fixed instantaneous trip, AB phase connection, and I-Line ON End terminal connection. Used for overcurrent protection in industrial power distribution panels and switchboards
3-pole molded case circuit breaker rated 45 A, 525V AC, with a maximum interrupting rating of 100kA at 240V AC. Features fixed instantaneous trip, ABC phase connection, and I-Line ON End terminal connection. Suitable for overload and short-circuit protection in industrial power distribution and motor control applications
SQUARE D
3-pole molded case circuit breaker rated 45 A, 525V AC, with a maximum interrupting rating of 100kA at 240V AC. Features fixed instantaneous trip, ABC phase connection, and I-Line ON End terminal connection. Suitable for overload and short-circuit protection in industrial power distribution and motor control applications
70 A molded case circuit breaker with 100kA interrupting rating at 120/240V AC. Fixed instantaneous trip, ABC phase connection, and Everlink lug terminals on both ends. Suitable for overcurrent protection in commercial and industrial electrical distribution panels where high fault currents are present
SQUARE D
70 A molded case circuit breaker with 100kA interrupting rating at 120/240V AC. Fixed instantaneous trip, ABC phase connection, and Everlink lug terminals on both ends. Suitable for overcurrent protection in commercial and industrial electrical distribution panels where high fault currents are present
Molded case circuit breaker for overcurrent protection in electrical distribution systems. Rated 35 A with 100kA interrupting capacity at 240V AC. Fixed instantaneous trip, Everlink lug terminals on both ends, ABC phase connection. Part of the BGL series
SQUARE D
Molded case circuit breaker for overcurrent protection in electrical distribution systems. Rated 35 A with 100kA interrupting capacity at 240V AC. Fixed instantaneous trip, Everlink lug terminals on both ends, ABC phase connection. Part of the BGL series
3-pole B-Frame molded case circuit breaker rated 70 A at 525V AC with a maximum interrupting rating of 100kA at 240V AC. Features fixed instantaneous trip, ABC phase connection, and aluminum mechanical lug terminals on the load end. Provides overcurrent protection in electrical distribution systems
SQUARE D
3-pole B-Frame molded case circuit breaker rated 70 A at 525V AC with a maximum interrupting rating of 100kA at 240V AC. Features fixed instantaneous trip, ABC phase connection, and aluminum mechanical lug terminals on the load end. Provides overcurrent protection in electrical distribution systems
1-pole, 100 A molded case circuit breaker from the BDA series. Rated 240V AC with a maximum AIR rating of 25kA at 277/408V AC. Features fixed instantaneous trip, I-Line ON End terminal connection, and Phase Connection A. Used for overcurrent protection in electrical panels
SQUARE D
1-pole, 100 A molded case circuit breaker from the BDA series. Rated 240V AC with a maximum AIR rating of 25kA at 277/408V AC. Features fixed instantaneous trip, I-Line ON End terminal connection, and Phase Connection A. Used for overcurrent protection in electrical panels
This 2-pole B-Frame molded case circuit breaker is rated 125 A with a maximum interrupting rating of 25kA at 277/408V AC. It features a fixed instantaneous trip and Everlink Lug terminations on both line and load ends. Suitable for use in electrical distribution systems to provide overcurrent and short-circuit protection
SQUARE D
This 2-pole B-Frame molded case circuit breaker is rated 125 A with a maximum interrupting rating of 25kA at 277/408V AC. It features a fixed instantaneous trip and Everlink Lug terminations on both line and load ends. Suitable for use in electrical distribution systems to provide overcurrent and short-circuit protection