Square D MG24137 Circuit Breaker, 40A, 2-Pole, 240V

Square D MG24137 circuit breaker — a 40 A, 2-pole, 240 V protective device built for demanding industrial electrical service, maintenance, and replacement work.

Designed to deliver reliable overcurrent protection for dual-wire 240 V circuits, the MG24137 is a practical swap-in solution for Square D panels and equipment. Its rugged, two-pole design ensures trusted protection for industrial loads while simplifying field replacements during outages or upgrades.

Key features

• 40 A, 2-pole design provides coordinated protection for both conductors on 240 V systems.
• Operates at 240 V aligning with common industrial feeders and motor circuits.
• Industrial-grade reliability suited for frequent service, maintenance, and replacement scenarios.
• Part-number compatibility—verify fit by MG24137 and your specific application requirements to minimize mismatches.
• Clear compatibility guidance ensures you’re selecting the exact device for your Square D installations.

Ideal use cases

Perfect for panel boards and service entrances in manufacturing facilities, warehouses, and industrial plants. It excels as a replacement breaker for legacy Square D systems and as a dependable 2-pole protection solution when upgrading or expanding 240 V circuits. Use it for machine feeds, conveyors, and other heavy equipment that require robust overcurrent protection with straightforward compatibility checks.

Specifications

• Manufacturer: Square D
• Part Number: MG24137
• Product Type: Circuit Breaker
• Amperage: 40 A
• Poles: 2
• Voltage: 240 V
• Notes: Verify fit by part number and application requirements.

If you’re unsure about compatibility, you can rely on our guidance to confirm that MG24137 matches your panel and application. Message us and we’ll help validate the part-number fit and ensure a seamless, reliable installation.