The Square D LAL3640036M molded case circuit breaker is a heavy-duty protection device designed for reliable operation in commercial and industrial electrical distribution systems. Built on the LAL frame style with a thermal magnetic non-interchangeable trip unit, this breaker provides dependable overload and short-circuit protection across demanding load conditions. Its robust molded case construction, bolt-on mounting configuration, and line/load terminal arrangement ensure secure installation, stable performance, and long service life in power distribution applications requiring consistent protection and system reliability.

Product Specifications

• Brand: Square D
• Model: LAL3640036M
• Frame Style: LAL
• Product Type: Molded Case Circuit Breaker
• Breaker Type: Thermal Magnetic
• Trip Unit: Non-Interchangeable
• Amperage Rating: 400 Ampere
• Number of Poles: 3 Pole
• Mounting Type: Bolt On
• Standard Lug Type: Line and Load End
• Operating Temperature Reference: 40°C
• Warranty: One Year

Technical Specifications

• Thermal magnetic trip mechanism for overload and short-circuit protection
• Non-interchangeable trip unit for fixed protection characteristics
• Heavy-duty molded case construction for industrial reliability
• Bolt-on mounting design for secure panel installation
• Line and load end terminals for flexible connection options
• Suitable for commercial and industrial power distribution systems
• Stable interruption performance under varying electrical loads
• Durable internal components for extended service life

Voltage and Ratings

• Rated Current: 400A
• Interrupting Capacity: 42kA @ 240 VAC
• Interrupting Capacity: 30kA @ 480 VAC
• Interrupting Capacity: 22kA @ 600 VAC
• Interrupting Capacity: 10kA @ 250 VDC
• Trip Setting Range: 2000–4000
• Frequency Rating: 50/60Hz
• Maximum Voltage Rating: 600V

Product Data

• Manufacturer: Square D
• Product Category: Molded Case Circuit Breaker
• Series: LAL Frame
• Connection Type: Bolt On
• Frame Type: L
• Pole Configuration: 3 Pole
• Lug Configuration: Line and Load End Terminals Standard
• Protection Type: Thermal Magnetic Protection
• Condition Support: Certified Reconditioned and New Surplus
• Included Warranty Coverage: Shipping, repairs, parts, and labor for recertification
• Application: Commercial and Industrial Electrical Distribution Systems

Important Note

The product image shown represents a base model and is intended for identification purposes only. Accessories purchased together with the breaker can be installed at no additional cost according to customer configuration requirements when installation instructions are provided during checkout. Installation, operation, and maintenance must be performed by qualified electrical personnel in accordance with applicable electrical standards and manufacturer guidelines. Warranty coverage excludes damage caused by misuse, improper installation, or normal wear and tear.

Returns are easy

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

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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.