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

3G Electric
RFQ CartGet a QuoteSign inSign up
SQUARE D Molded Case Circuit Breaker: 40 A Amps, 100kA at 120/240V AC, Fixed, A - B-Frame Square D Molded Case Circuit Breakers
SQUARE DB-Frame Square D Molded Case Circuit Breakers

SQUARE D Molded Case Circuit Breaker: 40 A Amps, 100kA at 120/240V AC, Fixed, A

The Square D BJA160401 is a B-Frame molded case circuit breaker rated for 40 A at 240V AC, with a maximum AIR rating of 100kA at 120/240V AC. It features 1 pole, a fixed instantaneous trip, and an Al mechanical lug…

SKU 3G-OTH-722217

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 40 A Amps, 100kA at 120/240V AC, Fixed, A
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

Technical Specifications

SQUARE D
Manufacturer Part Number
BJA160401
Series
BJA
Type
100kA at 120/240V AC, Fixed, A, BJA
AC
240V
Poles
1
Max. AIR Rating
100kA at 120/240V AC
Phase Connection
A
Instantaneous Trip
Fixed
Terminal Connection
Al Mechanical Lug OFF End
View Full Spec Sheet

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 BJA160401 is a B-Frame molded case circuit breaker rated for 40 A at 240V AC, with a maximum AIR rating of 100kA at 120/240V AC. It features 1 pole, a fixed instantaneous trip, and an Al mechanical lug OFF end terminal connection. This unit is part of the BJA series and is designed for phase connection A.

Frequently Asked Questions

What is the Square D BJA160401 molded case circuit breaker used for?

The Square D BJA160401 is a B-Frame molded case circuit breaker used for overcurrent protection in industrial and commercial electrical panels. It protects branch circuits rated 40 A at 240V AC, with a high interrupting capacity of 100kA at 120/240V AC, making it suitable for high-fault applications.

What are the specifications of the Square D BJA160401?

The Square D BJA160401 is a 1-pole, 40 A molded case circuit breaker rated for 240V AC. It has a maximum AIR rating of 100kA at 120/240V AC, a fixed instantaneous trip, and an Al mechanical lug OFF end terminal connection. It is part of the BJA series with phase connection A.

Where to buy the Square D BJA160401 worldwide?

3G Electric supplies the Square D BJA160401 molded case circuit breaker 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 BJA series unit.

How to select the Square D BJA160401 for a panel?

To select the Square D BJA160401, verify your system voltage is 240V AC and the continuous load does not exceed 40 A. Ensure the available fault current is below 100kA at 120/240V AC. This 1-pole breaker with fixed trip is ideal for branch circuits requiring phase A connection.

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 →
Molded Case Circuit Breaker: 30 A Amps, 100kA at 120/240V AC, Fixed, Everlink Lug Both Ends, Any (MPN BJL16030). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: Any; Max. AIR Rating: 100kA at 120/240V AC; Instantaneous Trip: Fixed; Series: BJL.
SQUARE D
Molded Case Circuit Breaker: 30 A Amps, 100kA at 120/240V AC, Fixed, Everlink Lug Both Ends, Any (MPN BJL16030). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: Any; Max. AIR Rating: 100kA at 120/240V AC; Instantaneous Trip: Fixed; Series: BJL.
Molded Case Circuit Breaker: 50 A Amps, 25kA at 277/408V AC, Fixed, AB, 2 Poles, 525V AC, BDA (MPN BDA260501). Key specifications — Terminal Connection: I-Line ON End; Phase Connection: AB; Max. AIR Rating: 25kA at 277/408V AC; Instantaneous Trip: Fixed; Series: BDA.
SQUARE D
Molded Case Circuit Breaker: 50 A Amps, 25kA at 277/408V AC, Fixed, AB, 2 Poles, 525V AC, BDA (MPN BDA260501). Key specifications — Terminal Connection: I-Line ON End; Phase Connection: AB; Max. AIR Rating: 25kA at 277/408V AC; Instantaneous Trip: Fixed; Series: BDA.
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.
SQUARE D
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.
SQUARE D
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.
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.
SQUARE D
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.
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.
SQUARE D
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.
Molded Case Circuit Breaker: 70 A Amps, 100kA at 120/240V AC, Fixed, Everlink Lug Both Ends, ABC (MPN BJL36070LU). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: ABC; Max. AIR Rating: 100kA at 120/240V AC; Instantaneous Trip: Fixed; Series: BJL.
SQUARE D
Molded Case Circuit Breaker: 70 A Amps, 100kA at 120/240V AC, Fixed, Everlink Lug Both Ends, ABC (MPN BJL36070LU). Key specifications — Terminal Connection: Everlink Lug Both Ends; Phase Connection: ABC; Max. AIR Rating: 100kA at 120/240V AC; Instantaneous Trip: Fixed; Series: BJL.
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.
SQUARE D
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.