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Square D LAL3640028M 3 Pole Circuit Breaker
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Square D LAL3640028M Motor Circuit Protector

  • 400A
  • 3 Pole
  • Unit Mount
Square D LAL3640028M
Motor Circuit Protector
Brand Square D
SKU LAL3640028M
Select Item Condition
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  • 400A
  • 3 Pole
  • Unit Mount

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Square D LAL3640028M 3 Pole Circuit Breaker

Square D LAL3640028M - 400A 3 Pole Motor Circuit Protector

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$4,514.26 In Stock

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Description Specifications SuperClub Warranties Shipping Reviews 5.0 (7)

Description

Built for industrial motor control applications, the Square D LAL3640028M is a 400A, 3-pole Mag-Gard motor circuit protector. It features an instantaneous-only magnetic trip unit adjustable from 750A to 1600A, allowing precise coordination with motor starters and overload relays. This unit-mount breaker installs into motor control centers and control panels. Rated for 30kAIC at 480VAC, it provides reliable short-circuit protection. It is replaced by the newer PowerPacT LJL36400U33X.

Specifications

Key specifications
Brand Square D
Part Number LAL3640028M
Series LAL
Amperage 400A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type LAL
Terminal Type Lugs
For Use With Square D Motor Control Centers, Motor Starters
Wire Gauge (1) 1 AWG-600 kcmil (Al/Cu) or (2) 1 AWG-250 kcmil (Al/Cu)
Max Wire 600 kcmil
Min Wire 1 AWG
Protection and operation
Trip Technology Magnetic Only
Trip Function Code I
Trip Function Instantaneous Only
Trip Adjustability Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Lugs (Line and Load)
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, IEC, UL
Temp Rating 40C
Construction Features Motor Circuit Protector, Visual Trip Indicator

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 7 reviews
Total 5 star reviews: 7 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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7 reviews
  • MB
    mike b.
    Verified Buyer
    Reviewing
    Square D LAL36350 - 350A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/15/26
    LAL36350MB

    OLINE ORDERING WAS EASY AND I RECEIVED THE BREAKER QUICKLY

    Was this helpful?
  • GC
    Glenn C.
    Verified Buyer
    Reviewing
    Square D LAL36400 - 400A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/27/26
    Breaker

    I like the great price. Great service

    Was this helpful?
  • MI
    Marietta I.
    Verified Buyer
    Reviewing
    Square D LAL36400 - 400A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/27/26
    Great service

    Received the breakers in time. My account mgr Mike is awesome.

    Was this helpful?
  • TB
    Terry B.
    Verified Buyer
    Reviewing
    Square D LAL36400 - 400A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/5/26
    RECERTIFIED BREAKER

    Breaker was received in good condition and seems to work correctly

    Was this helpful?
  • LB
    LISA B.
    Verified Buyer
    Reviewing
    Square D LAL36400 - 400A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/28/25
    good [product

    Expeditious delivery, great product and amazing customer service.

    Was this helpful?