Square D | MHL364501287 | Circuit Breaker | 450A | 3-Pole | 600V

Meet the Square D MHL364501287 circuit breaker—a robust 3-pole unit engineered for demanding electrical systems. Rated at 450A and designed for 600V environments, this breaker is a trusted choice for maintenance, retrofit, and replacement projects where exact specifications matter. With the MHL364501287, you’re choosing a proven solution built to protect high‑current, three‑phase circuits with dependable performance.

Key specifications

• Amperage: 450A
• Poles: 3‑Pole (three‑phase protection)
• Voltage rating: 600V
• Part reference: MHL364501287
• Recommended use: Maintenance, retrofit, and replacement where matching specs are required

Ideal use cases

• Upgrading large feeders in commercial or light industrial panels that require a 450A, three‑phase protection solution
• Replacing aging or worn breakers to restore reliable three‑phase protection for motors, pumps, and conveyors
• Retrofit projects where exact part numbers ensure compatibility with existing Square D installations

What makes this model stand out

The Square D MHL series embodies precise compatibility and consistent protection characteristics. By selecting the MHL364501287, you’re aligning with a dedicated design that fits systems intended for MHL‑family breakers, helping minimize downtime and ensure predictable trip behavior under heavy load. This is a purpose‑built choice for those who need a high‑current, three‑phase solution without compromising mounting fit or electrical performance.

Important compatibility note

Important: Confirm fit and ratings before ordering. The part number MHL364501287 is the best reference for compatibility with your panel. If your equipment or panel label specifies this exact reference, you’re positioned for a straightforward replacement that preserves original protection and performance characteristics.

Whether you’re stocking a spare for preventive maintenance or executing a retrofit to support a heavier motor load, this Square D 450A, 3‑Pole, 600V circuit breaker is designed to deliver reliable, three‑phase protection when it matters most.