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SQUARE D Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, AB - Square D Molded Case Circuit Breakers for I-Line Panelboards
SQUARE DSquare D Molded Case Circuit Breakers for I-Line Panelboards

SQUARE D Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, AB

The Square D LA Series Molded Case Circuit Breaker (MPN LA26400AB) is a 400 A unit rated 42kA at 240V AC with an adjustable instantaneous trip and a 2,000 A low amp trip setting. It features lug terminals and an AB…

SKU 3G-OTH-609776

Brand
SQUARE D
Item
Molded Case Circuit Breaker: 400 A Amps, 42kA at 240V AC, Adj, Lug, AB
Category
Square D Molded Case Circuit Breakers for I-Line Panelboards
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Technical Specifications

SQUARE D
Manufacturer Part Number
LA26400AB
Series
LA
Type
42kA at 240V AC, Adj, Lug, AB
Max. AIR Rating
42kA at 240V AC
Phase Connection
AB
Instantaneous Trip
Adjustable
Terminal Connection
Lug
Low Amp Trip Setting
2,000 A
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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Square D LA Series Molded Case Circuit Breaker (MPN LA26400AB) is a 400 A unit rated 42kA at 240V AC with an adjustable instantaneous trip and a 2,000 A low amp trip setting. It features lug terminals and an AB phase connection, designed for I-Line panelboards.

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 LA26400AB molded case circuit breaker used for?

The Square D LA26400AB is a 400 A molded case circuit breaker with a 42kA interrupting rating at 240V AC, used for overcurrent protection in I-Line panelboards. It is suitable for industrial and commercial power distribution systems requiring adjustable instantaneous trip settings.

What are the specifications of the Square D LA26400AB circuit breaker?

The Square D LA26400AB is rated 400 A, 42kA at 240V AC, with an adjustable instantaneous trip and a 2,000 A low amp trip setting. It features lug terminals and an AB phase connection, part of the LA Series for I-Line panelboards.

Where to buy the Square D LA26400AB circuit breaker worldwide?

3G Electric supplies the Square D LA26400AB molded case circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this 400 A, 42kA unit for I-Line panelboards.

How to select the right Square D LA Series circuit breaker for my panelboard?

Select a Square D LA Series breaker like the LA26400AB by matching the amp rating (400 A), interrupting capacity (42kA at 240V AC), and phase connection (AB) to your I-Line panelboard requirements. Ensure the adjustable trip setting (2,000 A low amp) aligns with your load and fault current needs.

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 square d molded case circuit breakers for i-line panelboards. 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: 225 A Amps, 42kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LA (MPN LA36225). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: LA.
Molded Case Circuit Breaker: 175 A Amps, 42kA at 120/240V AC, Adj, Lug, ABC, 3 Poles, 600V AC, LA (MPN LA36175). Key specifications — Terminal Connection: Lug; Phase Connection: ABC; Max. AIR Rating: 42kA at 120/240V AC; Instantaneous Trip: Adjustable; Series: LA.
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Molded Case Circuit Breaker: 200 A Amps, 25kA at 240V AC, Fixed, Lug, BC, 2 Poles, 240V AC, QD (MPN QDA222004). Key specifications — Terminal Connection: Lug; Phase Connection: BC; Max. AIR Rating: 25kA at 240V AC; Instantaneous Trip: Fixed; Series: QD.
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