Square-D LAP36300 300A 3P MCCB – Panel Mounted – 600V

In stock
SKU: LAP36300-NS GTIN/UPC: 785901423980
Regular price $3,599.00
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FREE & fast shipping on orders over $149
1 year warranty
30 day returns

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The Square-D LAP36300 is a molded case circuit breaker designed to provide reliable protection for industrial and commercial electrical distribution systems. It incorporates a 300A thermal magnetic non-interchangeable trip unit, delivering dependable protection against overload and short-circuit faults. Built on the LAP frame platform, it ensures high interrupting performance and operational stability under fault conditions. Its 3-pole, panel-mounted design allows efficient integration into switchgear and power distribution assemblies.

Product Specification

  • Frame type: LAP Frame (Type L)
  • Rated current: 300 Ampere at 40°C
  • Number of poles: 3 Pole
  • Trip unit type: Thermal Magnetic Non-interchangeable
  • Mounting type: Panel Mounted
  • Terminal configuration: Load End Terminals Only
  • Manufacturer: Square-D
  • Warranty: 1 Year In-house

Technical Specification

  • Trip range: 1500–3000
  • Protection functions: Overload and Short Circuit Protection
  • Operating mechanism: Thermal Magnetic
  • Lug type: Standard Load End Only
  • Application: Industrial and commercial power distribution systems
  • Mechanical strength: Designed for high fault current endurance and durability

Voltage and Ratings

  • Rated operational voltage: 240 / 480 / 600 VAC
  • DC rating: 250 VDC
  • Frequency: 50/60 Hz
  • Interrupting capacity:
    • 42 kA @ 240 VAC
    • 30 kA @ 480 VAC
    • 22 kA @ 600 VAC
    • 10 kA @ 250 VDC
  • Insulation level: Industrial MCCB standard

Product Data

  • Product model: LAP36300
  • Brand: Square-D
  • Frame size: LAP Frame
  • Amperage: 300A
  • Poles: 3 Pole
  • Connection type: Panel Mounted
  • Application type: Power distribution and circuit protection
  • Accessories compatibility: Supported and configurable per order requirements

Important Note

This product is supplied as a base configuration model. Final assembly, accessories, and installation setup may vary depending on application requirements and customer specifications. Accessories can be installed at no additional cost when ordered together with the breaker, provided that installation instructions are clearly specified at the time of purchase. Always verify technical compatibility before installation or system commissionin


  • Type Circuit Breakers
  • Vendor Square D
  • Brand Square D

Returns are easy

You may return items within 30 days of delivery for a refund.

FREE Shipping on orders over $149.

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My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.