We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
SQUARE D Molded Case Circuit Breaker: 400 A Amps, 25kA at 600V AC, Adj, Box Lug - M-Frame Square D Molded Case Circuit Breakers
SQUARE DM-Frame Square D Molded Case Circuit Breakers

SQUARE D Molded Case Circuit Breaker: 400 A Amps, 25kA at 600V AC, Adj, Box Lug

The Square D MJA36400 is a 3-pole, 400 A M-Frame Molded Case Circuit Breaker rated 600V AC with a maximum AIR rating of 25kA at 600V AC. It features an adjustable instantaneous trip, box lug terminals, and ABC phase…

SKU 3G-OTH-609495

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 400 A Amps, 25kA at 600V AC, Adj, Box Lug
Category
M-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
MJA36400
Series
MJ
Type
25kA at 600V AC, Adj, Box Lug, ABC, MJ
AC
600V
Poles
3
Max. AIR Rating
25kA at 600V AC
Phase Connection
ABC
Instantaneous Trip
Adjustable
Terminal Connection
Box Lug
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 MJA36400 is a 3-pole, 400 A M-Frame Molded Case Circuit Breaker rated 600V AC with a maximum AIR rating of 25kA at 600V AC. It features an adjustable instantaneous trip, box lug terminals, and ABC phase connection, part of the MJ 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 MJA36400 molded case circuit breaker used for?

The Square D MJA36400 is a 3-pole, 400 A M-Frame molded case circuit breaker used for overcurrent protection in industrial power distribution systems. It is rated 600V AC with a 25kA interrupting capacity and an adjustable instantaneous trip, making it suitable for motor and feeder circuits.

What are the specifications of the Square D MJA36400?

The Square D MJA36400 is a 3-pole, 400 A molded case circuit breaker rated 600V AC with a maximum AIR rating of 25kA at 600V AC. It features an adjustable instantaneous trip, box lug terminals, and ABC phase connection. It is part of the MJ series and has MPN MJA36400.

Where to buy the Square D MJA36400 worldwide?

3G Electric supplies the Square D MJA36400 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 M-Frame molded case circuit breaker.

How to select the right Square D MJA36400 for my application?

To select the Square D MJA36400, verify your system voltage (600V AC max), continuous load (400 A), and available fault current (up to 25kA). Ensure the adjustable instantaneous trip range covers your motor or feeder inrush. Confirm box lug terminal size matches your conductor. 3G Electric can help with application guidance.

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 m-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: 600 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MJ (MPN MJA36600). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
SQUARE D
Molded Case Circuit Breaker: 600 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MJ (MPN MJA36600). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
Molded Case Circuit Breaker: 800 A Amps, 18kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MG (MPN MGL36800). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
SQUARE D
Molded Case Circuit Breaker: 800 A Amps, 18kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MG (MPN MGL36800). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
Molded Case Circuit Breaker: 800 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJL36800). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
SQUARE D
Molded Case Circuit Breaker: 800 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJL36800). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
Molded Case Circuit Breaker: 300 A Amps, 18kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MG (MPN MGL36300). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
SQUARE D
Molded Case Circuit Breaker: 300 A Amps, 18kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MG (MPN MGL36300). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
Molded Case Circuit Breaker: 350 A Amps, 18kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MG (MPN MGL36350). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
SQUARE D
Molded Case Circuit Breaker: 350 A Amps, 18kA at 600V AC, Adj, Box Lug, CBA, 3 Poles, 600V AC, MG (MPN MGL36350). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 18kA at 600V AC; Instantaneous Trip: Adjustable; Series: MG.
Molded Case Circuit Breaker: 600 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 2 Poles, 600V AC, MJ (MPN MJL26600). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
SQUARE D
Molded Case Circuit Breaker: 600 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 2 Poles, 600V AC, MJ (MPN MJL26600). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
Molded Case Circuit Breaker: 350 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 2 Poles, 600V AC, MJ (MPN MJL26350). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
SQUARE D
Molded Case Circuit Breaker: 350 A Amps, 25kA at 600V AC, Adj, Box Lug, CBA, 2 Poles, 600V AC, MJ (MPN MJL26350). Key specifications — Terminal Connection: Box Lug; Phase Connection: CBA; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
Molded Case Circuit Breaker: 700 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJL36700). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.
SQUARE D
Molded Case Circuit Breaker: 700 A Amps, 25kA at 600V AC, Adj, Box Lug, ABC, 3 Poles, 600V AC, MJ (MPN MJL36700). Key specifications — Terminal Connection: Box Lug; Phase Connection: ABC; Max. AIR Rating: 25kA at 600V AC; Instantaneous Trip: Adjustable; Series: MJ.