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Square D MAL36450 - 450A 3 Pole Molded Case Circuit Breaker

Brand Square D
SKU MAL36450
5.0
Rated 5.0 out of 5 stars
5 Reviews
Square D MAL36450 3 Pole Circuit Breaker
Free Shipping Over $99

Square D MAL36450 - 450A 3 Pole Molded Case Circuit Breaker

Brand Square D
SKU MAL36450
5.0
Rated 5.0 out of 5 stars
5 Reviews
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Square D MAL36450 3 Pole Circuit Breaker

Square D MAL36450 - 450A 3 Pole Molded Case Circuit Breaker

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$1295.00 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Engineered for heavy-duty industrial applications, the Square D MAL36450 is a 3-pole, 450A molded case circuit breaker from the legacy M-Frame family. It provides reliable overcurrent protection for commercial facilities. This unit mount MCCB installs into Square D switchboards and motor control centers. For modern upgrades, this frame has been replaced by the PowerPact MGA36450. Equipped with a thermal-magnetic trip unit, it features an adjustable magnetic trip and a 42kAIC rating at 240V.

Specifications

Brand Square D
Series MAL
Part Number MAL36450-R
Amperage 450A
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Poles 3
Phase 3
AIC Rating 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 14kA @ 250VDC
Mounting Style Unit Mount
Terminal Type Lugs
For Use With Square D Switchboards, Motor Control Centers
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Wire Gauge (3) 3/0 AWG - 500 kcmil (Al/Cu)
Max Wire 500 kcmil
Min Wire 3/0 AWG
Available Options Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch
Accessories Line and Load Lugs (AL900MA)
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features Non-Interchangeable Trip

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Warranties

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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.

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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.

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Same Day Shipping

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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.

5.0
Rated 5.0 out of 5 stars
Based on 5 reviews
Total 5 star reviews: 5 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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5 reviews
  • JM
    JAY M.
    Verified Buyer
    Reviewing
    Square D MAL36600 - 600A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/29/25
    POLE CIRCUIT BREAKER

    SQUARE D CIRCUIT BREAKER DELIVERED REAL FAST AND AT A GREAT PRICE

    Was this helpful?
  • DF
    David F.
    Flag of United States
    Verified Buyer
    Reviewing
    Square D MAL36800 - 800A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/14/25
    thank you for all your

    thank you for all your help

    Was this helpful?
  • R
    Ryan
    Reviewing
    Square D MAL361000 - 1000A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/27/24
    5 Stars

    Amazing costumer service

    Was this helpful?
  • MC
    MARCUS C.
    Flag of United States
    Reviewing
    Square D MAL36600 - 600A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/4/23
    Great supplier /saves the Bacon every time

    I did not know it shipped - I will check - you guys are great

    Was this helpful?
  • JM
    John M.
    Flag of United States
    Reviewing
    Square D MAL36600 - 600A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/13/21
    Clean and very well packaged

    Breaker arrived as advertised. Very clean, wrapped and packed with alot of care to ensure it arrived safely.

    Was this helpful?

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