Square D MHF361200 Circuit Breaker, 1200A, 3-Pole, 600V

Meet the Square D MHF361200 circuit breaker—a rugged, high-capacity protective device engineered for demanding industrial environments. With a 1200 A rating, 3 poles (three-pole) and a 600 V maximum, it delivers reliable overcurrent protection for large, three-phase electrical systems.

Designed for industrial service, maintenance, and replacement projects, this breaker quickly interrupts fault currents to minimize downtime and equipment damage. Use the part number MHF361200 to confirm compatibility with your panel and application requirements. If you’re unsure about fit, our team can help verify compatibility—just send us your details and we’ll assist.

• Current rating: 1200 A
• Poles: 3 (three-pole) for true three-phase protection
• Voltage rating: 600 V
• Application: Industrial service, maintenance, and replacement projects
• Compatibility: Verify fit by part number and application requirements; if you need help matching a part number or confirming compatibility, message us and we'll assist

Why this Square D breaker stands out: it’s built for reliability in heavy-duty environments, delivering consistent performance when protecting large motor circuits, processing lines, and other high-load equipment. The three-pole configuration ensures balanced protection across all phases, reducing the risk of unprotected faults and helping maintain system stability in demanding operations.

Practical use cases include replacing a worn-out breaker in a 3-phase, 600 V distribution panel, provisioning new equipment feeds requiring 1200 A protection, or upgrading protection for high-power motors and industrial processes. Always confirm compatibility with your specific panel model and install per electrical codes and safety standards.