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Square D LA, LAL36400MB, 400A, 3P, 600V, 22kA, Unit Mount, Lug, Short Handle, Thermal-Magnetic, MCCB

In stock - 2 items available
SKU: LAL36400MB UPC: 785901005513

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SELECT ITEM CONDITION
Regular price $950.00 USD
Regular price Sale $1,989.99 USD Sale price $950.00 USD
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Square D LAL36400MB: 400 Amp, 3-Pole, Type LA Thermal-Magnetic Molded Case Circuit Breaker, 600V, 22kA, Unit Mount, Lug-Lug, Short Handle, UL Listed.

  • Manufacturer: Schneider Electric (Square D)
  • Brand: Square D
  • Product Range: LA Series (Legacy LA/LH Molded Case Circuit Breakers)
  • UPC: 785901005513
  • Model Number: LAL36400MB
  • Breaker Type: Molded Case Circuit Breaker (MCCB), Thermal-Magnetic Trip, LI — Long-Time and Instantaneous Functions
  • Amperage: 400 Amps
  • Poles: 3-Pole
  • Voltage: 600 Volts AC / 250 Volts DC
  • Interrupt Rating: 42 kAIC @ 240V; 30 kAIC @ 480V; 22 kAIC @ 600V AC; 10 kAIC @ 250V DC (UL 489)
  • Frame: LA Frame (400A Frame)
  • Trip Unit: Thermal-Magnetic; Magnetic Trip: 4,000A; Hold Current: 2,000A
  • Mounting Mode: Unit Mount
  • Operator: Short Lever Handle (MB suffix — panel door clearance)
  • Terminals: AL400LA Lugs, Line and Load
  • Wire Size: #1 AWG–600 kcmil
  • Tightening Torque: 115.1 lb-in (#1 AWG–600 kcmil)
  • Dimensions: Height: 11.00 in; Width: 6.00 in; Depth: 5.84 in
  • Certifications: UL Listed, CSA, IEC, HACR Rated

This Square D LAL36400MB Type LA thermal-magnetic MCCB delivers 400 Amp, 3-Pole protection at 600V with 22kA interrupt capacity for commercial and industrial switchboard, panelboard, and motor control center applications. The short handle (MB) design enables installation where panel door clearance is limited, while AL400LA lugs on both line and load ends accommodate heavy feeder conductors up to 600 kcmil.

New Condition

  • Products in new condition are unused and in their original state.
  • Backed by our 24-month warranty, ensuring reliability and peace of mind.

Reconditioned Condition

  • Products in reconditioned condition are previously owned but have been professionally tested and inspected to ensure full functionality.
  • May include minor repairs, such as replacing damaged screws, but are not fully refurbished.
  • Covered by our 12-month warranty, guaranteeing performance.

Free Shipping on Orders Over $250

Enjoy free standard shipping on all orders over $250!

  • Applies to the contiguous United States
  • Excludes Alaska, Hawaii, U.S. territories, and oversized items
  • No promo code needed—free shipping is automatically applied at checkout when your order total is $250 or more.

For full details, please refer to our Shipping Policy.

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