The Square D MHL36600 molded case circuit breaker is a high-capacity protection device designed for demanding commercial and industrial electrical distribution systems. Featuring an MHL frame style with a thermal magnetic non-interchangeable trip unit, this breaker delivers reliable overload and short-circuit protection while maintaining stable system performance under heavy electrical loads. Its rugged molded case construction, high interrupting capacity, and bolt-on mounting configuration ensure secure installation, long-term durability, and dependable operation in critical power applications.

Product Specifications

• Brand: Square D
• Model: MHL36600
• Frame Style: MHL
• Product Type: Molded Case Circuit Breaker
• Breaker Type: Thermal Magnetic
• Trip Unit: Non-Interchangeable
• Amperage Rating: 600 Ampere
• Number of Poles: 3 Pole
• Mounting Type: Bolt On
• Maximum Voltage Rating: 600V
• 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 settings
• Heavy-duty molded case construction for industrial-grade reliability
• High interrupting capacity for enhanced electrical safety
• Bolt-on mounting design for secure and stable installation
• Designed for commercial and industrial power distribution systems
• Reliable interruption performance under varying load conditions
• Durable internal components for long operational life

Voltage and Ratings

• Rated Current: 600A
• Rated Maximum Voltage: 600V
• Interrupting Capacity: 65kA @ 240 VAC
• Interrupting Capacity: 65kA @ 480 VAC
• Interrupting Capacity: 25kA @ 600 VAC
• Interrupting Capacity: 14kA @ 250 VDC
• Trip Setting Range: 3000–6000
• Frequency Rating: 50/60Hz

Product Data

• Manufacturer: Square D
• Product Category: Molded Case Circuit Breaker
• Series: MHL Frame
• Connection Type: Bolt On
• Frame Type: M
• Pole Configuration: 3 Pole
• Lug Configuration: Line and Load End Terminals Standard
• 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 details 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.