Square D LAL364008041 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Square D
LAL364008041
Molded Case Circuit Breaker
Brand
Square D
SKU
LAL364008041
Quantity
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Square D LAL364008041 - 400A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial environments, the Square D LAL364008041 is a 3-pole, 400A molded case circuit breaker offering proven long-time and instantaneous (LI) trip functions. It mounts into Square D switchboards, motor control centers, and industrial enclosures. This specific configuration includes factory-installed control wire taps on the lugs, allowing for convenient control circuit connections. Rated for 30kAIC at 480VAC, this L-Frame unit is replaced by the newer LJL36400.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 |
| Frame Type | LAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures, Control Panels |
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Control Wire Taps |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
8 answersWhat does the 8041 suffix mean on the LAL364008041 circuit breaker?
The 8041 suffix indicates that the breaker comes with factory-installed control wire tapped lugs. This allows for easy connection of control circuits directly at the breaker terminals on both the line and load sides.
What types of equipment is the LAL364008041 compatible with?
This L-frame breaker is designed for use in Square D switchboards, motor control centers, industrial enclosures, and control panels. It is a unit-mount breaker, meaning it bolts directly to the mounting surface rather than plugging onto a busbar.
What wire sizes do the lugs on the LAL364008041 accept?
The standard feed-thru lugs accept either one 1 AWG to 600 kcmil aluminum or copper wire, or two 1 AWG to 250 kcmil aluminum or copper wires per phase.
Is the trip unit on the LAL364008041 adjustable?
Yes, it features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Can the LAL364008041 be used in DC applications?
Yes, this breaker is rated for use on DC systems up to 250VDC, with an interrupting capacity of 10kAIC at 250VDC.
How is the LAL364008041 mounted in a panel?
It is a unit-mount, or individually mounted, circuit breaker. It secures to the backpan or mounting plate with screws and connects to the power source via cables to the line-side lugs, rather than using an I-Line plug-on connection.
What is the difference between the LAL364008041 and the LHL364008041?
Both are 400A, 3-pole, unit-mount L-frame breakers, but they have different interrupting ratings. The LAL series is standard interrupting with 30kAIC at 480VAC, while the LHL series is high interrupting with 65kAIC at 480VAC.
What safety checks should be performed before installing the LAL364008041?
Before installation, verify that the available fault current at the installation point does not exceed the breaker's interrupting rating of 30kAIC at 480VAC. Ensure all power is de-energized and confirm the adjustable magnetic trip dial is set according to your facility's coordination study.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
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Rating
7 reviews
- MBmike b.Verified BuyerReviewingSquare D LAL36350 - 350A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/15/26LAL36350MB
OLINE ORDERING WAS EASY AND I RECEIVED THE BREAKER QUICKLY
- GCGlenn C.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/27/26Breaker
I like the great price. Great service
- MIMarietta I.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/27/26Great service
Received the breakers in time. My account mgr Mike is awesome.
- TBTerry B.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/5/26RECERTIFIED BREAKER
Breaker was received in good condition and seems to work correctly
- LBLISA B.Verified BuyerReviewingSquare D LAL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/28/25good [product
Expeditious delivery, great product and amazing customer service.