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Square D MAL36700 Molded Case Circuit Breaker

  • 700A
  • 3 Pole
  • Unit Mount
Square D MAL36700
Molded Case Circuit Breaker
Brand Square D
SKU MAL36700
Select Item Condition
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  • 700A
  • 3 Pole
  • Unit Mount

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Square D MAL36700 3 Pole Circuit Breaker

Square D MAL36700 - 700A 3 Pole Molded Case Circuit Breaker

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$1,726.31 In Stock

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Description

Built for heavy-duty power distribution, the Square D MAL36700 delivers 700A of thermal-magnetic protection. This 3-pole breaker features an adjustable magnetic trip for precise coordination and carries a 42kAIC rating at 240VAC. Designed with a unit-mount configuration and lug terminals, it integrates easily into Square D switchboards and motor control centers. For facility upgrades or maintenance, this legacy M-Frame component transitions to the modern MGL36700 equivalent when upgrading.

Specifications

Key specifications
Brand Square D
Part Number MAL36700
Series MAL
Amperage 700A
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, Enclosures
Wire Gauge (3) 3/0 AWG - 500 kcmil (Al/Cu)
Max Wire 500 kcmil
Min Wire 3/0 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, Undervoltage Release, Auxiliary Switch, Alarm Switch
Accessories Lugs (AL900MA)
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Non-Interchangeable Trip

Product FAQs

5 answers
Is the MAL36700 still manufactured, or is there a modern replacement?

The MAL36700 is a legacy M-Frame circuit breaker. For new installations or facility upgrades, it transitions to the modern Square D PowerPact M-Frame series, such as the MGL36700, which offers updated electronic trip units while covering the same 700A footprint.

Can I install the MAL36700 in an I-Line panelboard?

No, the MAL36700 is a unit mount, or feed-thru, breaker designed for bolt-on installations. It uses cable lugs on both the line and load sides and lacks the required jaw connections to plug into an I-Line bussing system. You must use an I-Line specific breaker for those panelboards.

How is the magnetic trip adjusted on this breaker?

The MAL36700 features a thermal magnetic trip unit with a fixed thermal element and an adjustable magnetic element. The instantaneous magnetic trip threshold can be dialed in using the adjustment switch on the face of the breaker, allowing for precise coordination with downstream devices.

What wire sizes are compatible with the standard lugs on the MAL36700?

The factory lug configuration accepts three conductors per phase. It is compatible with both aluminum and copper wiring, accommodating wire gauges from 3/0 AWG up to 500 kcmil.

Where is the MAL36700 typically installed?

This 700A breaker is designed for heavy-duty power distribution and is commonly installed in Square D switchboards, motor control centers, and standalone industrial enclosures.

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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.