NEW Summer 2026 SuperGear! SuperPoints Accepted »

Square D LAF3640028M - 400A 3 Pole Motor Circuit Protector

Brand Square D
SKU LAF3640028M

Square D LAF3640028M - 400A 3 Pole Motor Circuit Protector

Brand Square D
SKU LAF3640028M
Select Item Condition
Earn 5266 SuperPoints

Quantity
Planning a Big Order?
Bulk pricing available—let us know your needs for a quote.
Get a quote
Shop with Confidence
Enjoy a free 60-day warranty, extendable to 1 year at checkout.
Learn more

Square D LAF3640028M - 400A 3 Pole Motor Circuit Protector

New

$5266.63 In stock

Quantity

DescriptionSpecificationsSuperClubWarranties
Description
Part of the legacy L-Frame family, this 400-amp Mag-Gard motor circuit protector offers robust instantaneous protection for industrial environments. It fastens securely into compatible Square D motor control centers via a bolt-on configuration, ensuring a stable connection under high electrical stress. Facility managers looking to upgrade often transition to the newer PowerPacT LGL36400U31X model. This unit provides an adjustable magnetic trip to fine-tune coordination with motor overloads.

Specifications

Brand Square D
Series LAF
Amperage 400A
Amperage Range 750-1600A
Voltage 240VAC, 480VAC, 600VAC
Poles 3
Phase 3
AIC Rating 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Square D Motor Control Centers, Combination Starters
Trip Technology Magnetic Only
Trip Function Code I
Trip Function Instantaneous Only
Trip Adjustability Adjustable Magnetic
Wire Gauge 1 AWG-600 kcmil (Al/Cu) or (2) 1 AWG-250 kcmil (Al/Cu)
Max Wire 600 kcmil
Min Wire 1 AWG
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Lug Kits
Accessories Lugs Not Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features Motor Circuit Protector, Adjustable Instantaneous Trip

SuperClub

Get rewarded every time you shop! Join SuperClub for free and start earning points on every purchase, unlocking exclusive discounts, special promos, and VIP perks. Already a member? Keep shopping to level up your rewards and enjoy even more benefits, including faster shipping, extended returns, and premium offers.

Learn more about SuperClub

Warranties

We’ve got you covered!

When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

Click here to read our full warranty details

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.

Click here to 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.

Related Products

Recently Viewed