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Square D MAL361200 Molded Case Circuit Breaker

  • 1200A
  • 3 Pole
  • Unit Mount
Square D MAL361200
Molded Case Circuit Breaker
Brand Square D
SKU MAL361200
Select Item Condition
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  • 1200A
  • 3 Pole
  • Unit Mount

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Square D MAL361200 - 1200A 3 Pole Molded Case Circuit Breaker

Square D MAL361200 - 1200A 3 Pole Molded Case Circuit Breaker

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$8,526.93 In Stock

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Description

Operating at up to 600VAC, the Square D MAL361200 is a 3-pole, 1200A molded case circuit breaker. It is equipped with a thermal-magnetic trip unit featuring fixed thermal and adjustable magnetic settings for precise LI protection. This unit mount breaker is engineered for installation within Square D switchboards and motor control centers. Delivering a 42kAIC interrupting rating at 240VAC, this legacy M-Frame MCCB provides robust safety. It is officially replaced by the PGL36120.

Specifications

Key specifications
Brand Square D
Part Number MAL361200
Series MAL
Amperage 1200A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 14kA @ 250VDC
Fit and installation
Frame Type MAL
Terminal Type Lugs
For Use With Square D Switchboards, Motor Control Centers
Wire Gauge (4) 1/0 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 1/0 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, Undervoltage Release, Alarm Switch
Accessories Lugs (AL1000MA)
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated

Product FAQs

5 answers
What is the modern replacement for the legacy MAL361200 circuit breaker?

The MAL361200 is a legacy M-Frame breaker. The official Square D replacement is the PowerPact P-Frame PGL36120, which matches the 1200A, 3-pole configuration.

What are the standard lug wire size requirements for the MAL361200?

This breaker uses AL1000MA lugs, which require four 1/0 AWG to 350 kcmil aluminum or copper conductors per phase.

What is the magnetic trip adjustment range for the MAL361200?

The adjustable magnetic trip unit on this breaker can be set between 6000A and 12000A. The thermal overload protection is fixed at 1200A.

Is the MAL361200 compatible with Square D I-Line panelboards?

No. The MAL361200 is a unit-mount, feed-thru circuit breaker designed for Square D switchboards and motor control centers. It does not have the plug-on jaws required for I-Line panelboards.

Does the MAL361200 provide ground fault protection?

No. The MAL361200 features a standard thermal-magnetic trip unit with Long-Time and Instantaneous (LI) protection only. It does not include integrated ground fault protection.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 5 reviews
Rating
Ratings
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

  • 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

  • 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

  • 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

  • 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.