The Square D MHL361200 molded case circuit breaker is a heavy-duty electrical protection device engineered for high-capacity commercial and industrial power distribution systems. Designed with an MHL frame style and thermal magnetic non-interchangeable trip unit, this breaker delivers reliable overload and short-circuit protection for demanding electrical applications. Its rugged molded case construction, high interrupting ratings, and bolt-on mounting configuration ensure secure installation, dependable operation, and long-term durability in critical power management environments.

Product Specifications

• Brand: Square D
• Model: MHL361200
• Frame Style: MHL
• Product Type: Molded Case Circuit Breaker
• Breaker Type: Thermal Magnetic
• Trip Unit: Non-Interchangeable
• Amperage Rating: 1200 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 trip settings
• Heavy-duty molded case construction for industrial-grade applications
• High interrupting capacity for enhanced electrical protection
• Bolt-on connection design for secure and reliable installation
• Designed for demanding commercial and industrial power distribution systems
• Reliable switching and interruption performance under high electrical loads
• Durable internal components engineered for extended operational life

Voltage and Ratings

• Rated Current: 1200A
• 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: 5000–10000
• 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 displayed represents a base model and is intended for identification purposes only. Accessories purchased together with the breaker can be professionally installed according to customer configuration requirements at no additional cost when installation details are provided during checkout. Installation and maintenance should only be performed by qualified electrical personnel in accordance with local electrical regulations and manufacturer guidelines. Warranty coverage excludes damage caused by misuse, improper installation, or normal operational 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.