Skip to main content

- View New Merch Drops. Redeem with SuperPoints. -

Expedited shipping available at checkout

Square D LAL3640036M1021 Motor Circuit Protector

  • 400A
  • 3 Pole
  • Unit Mount
Square D LAL3640036M1021
Motor Circuit Protector
Brand Square D
SKU LAL3640036M1021
Select Item Condition
Earn 7540 SuperPoints
  • 400A
  • 3 Pole
  • Unit Mount

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Request Pricing

Square D LAL3640036M1021 - 400A 3 Pole Motor Circuit Protector

New

$7,540.00 In Stock

Quantity

Description Specifications SuperClub Warranties Shipping Reviews 5.0 (7)

Description

The LAL3640036M1021 is a legacy Mag-Gard motor circuit protector from Square D, designed for motor control centers and starters. It provides instantaneous short-circuit protection for industrial motor applications. As a unit-mount L-Frame device, it installs via standard lug connections. Rated for 400A at 600VAC, it features an adjustable magnetic trip range of 2000A to 4000A to coordinate with motor inrush currents. It includes a factory-installed 120-240VAC shunt trip for remote tripping.

Specifications

Key specifications
Brand Square D
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 Motor Starters, Motor Control Centers
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 Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Shunt Trip
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features Mag-Gard, Adjustable Instantaneous Trip (2000-4000A), Motor Circuit Protector

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Join SuperClub free Sign in

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

See coverage details

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

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
Search
Search Reviews
Rating
Ratings
Write a Review (Opens in a new window)
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?