The Square D MH36800 molded case circuit breaker is a high-capacity electrical protection solution designed for demanding commercial and industrial power distribution systems. Built with the dependable MH (I-Line) frame style and a thermal magnetic non-interchangeable trip unit, this breaker delivers efficient overload and short-circuit protection while ensuring safe and stable electrical operation. Its durable molded case construction, superior interrupting capacity, and plug-in mounting configuration make it ideal for heavy-duty applications requiring reliable circuit protection and long-term operational performance.

Product Specifications

• Brand: Square D
• Model: MH36800
• Frame Style: MH (I-Line)
• Product Type: Molded Case Circuit Breaker
• Breaker Type: Thermal Magnetic
• Trip Unit: Non-Interchangeable
• Amperage Rating: 800 Ampere
• Number of Poles: 3 Pole
• Mounting Type: Plug In
• Maximum Voltage Rating: 600V
• Standard Lug Type: 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 durability
• High interrupting capacity for enhanced electrical safety
• Plug-in mounting configuration for secure and efficient installation
• Designed for I-Line electrical distribution systems
• Reliable interruption and switching performance under high load conditions
• Long operational life with minimal maintenance requirements

Voltage and Ratings

• Rated Current: 800A
• 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: 4000–8000
• Frequency Rating: 50/60Hz

Product Data

• Manufacturer: Square D
• Product Category: Molded Case Circuit Breaker
• Series: I-Line / M Frame
• Connection Type: Plug In
• Frame Type: M
• Pole Configuration: 3 Pole
• Lug Configuration: 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 ordered together with the breaker can be professionally installed to match specific configuration requirements at no additional cost when installation details are provided during checkout. Installation, operation, and servicing should only be performed by qualified electrical professionals in accordance with applicable electrical standards and manufacturer instructions. 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.