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Square D LAL363008041 Molded Case Circuit Breaker

  • 300A
  • 3 Pole
  • Unit Mount
Square D LAL363008041
Molded Case Circuit Breaker
Brand Square D
SKU LAL363008041
Select Item Condition
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  • 300A
  • 3 Pole
  • Unit Mount

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Square D LAL363008041 - 300A 3 Pole Molded Case Circuit Breaker

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$3,761.88 In Stock

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Description

Built for industrial power distribution, the Square D LAL363008041 is a 3-pole, 300A molded case circuit breaker. The 8041 catalog suffix indicates the inclusion of factory-installed control wire tap lugs for specialized circuit needs. Designed for unit mount configurations, it fits seamlessly into Square D switchboards and motor control centers. For modern upgrades, this legacy L-Frame unit is replaced by the LJL36300 series.

Specifications

Key specifications
Brand Square D
Series LAL
Amperage 300A
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 Industrial Enclosures, Switchboards, 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 Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release
Accessories Control Wire Tap Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features HACR Rated

Product FAQs

6 answers
What does the 8041 suffix mean in the LAL363008041 catalog number?

The 8041 suffix indicates that the circuit breaker comes with factory-installed control wire tapped lugs.

Which Square D enclosures are compatible with the LAL363008041 circuit breaker?

This 300A L-frame breaker can be installed in Square D 400A enclosures, including the LA400S (NEMA 1 surface mount), LA400F (NEMA 1 flush mount), LA400R (NEMA 3R outdoor), LA400AWK (NEMA 12), and LA400DS (NEMA 4/4X/5).

What replacement lug kit is used for the LAL363008041?

The standard mechanical lug kit for this breaker is the AL400LA. It accepts either one 1 AWG to 600 kcmil conductor or two 1 AWG to 250 kcmil aluminum or copper conductors per phase.

How does the trip unit function on the LAL363008041?

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 I use the LAL363008041 to replace an older LA or LH frame breaker?

Yes, the LAL series shares the same physical footprint and mounting dimensions as legacy LA and LH frame breakers. However, if replacing an LH frame, verify that the LAL breaker's 30kA at 480V interrupting rating meets your system requirements, as LH breakers typically have higher AIC ratings.

How is the LAL363008041 mounted in a panel?

This is a unit mount, or feed-thru, circuit breaker. It is secured to the backpan using mounting screws and connects to the circuit using line and load side lugs. It is not compatible with I-Line panelboards.

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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
Rating
Ratings
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

  • 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

  • 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.

  • 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

  • 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.