Square D | MHL365001212 | Circuit Breaker | 500A | 3-Pole | 600V

Meet the Square D MHL365001212 circuit breaker—a robust three‑pole protection device designed for demanding electrical systems. With a 500A rating and a 600V maximum voltage, this unit is built for heavy‑duty service in industrial environments where reliable interruption across all three phases is essential. The part number MHL365001212 serves as the definitive reference for compatibility with Square D panels and accessories.

Why this 3‑pole, 500A, 600V breaker stands out

Three‑pole construction protects all phases in a three‑phase circuit, ensuring coordinated isolation and reducing the risk of unbalanced fault conditions. A 600V rating supports common industrial distributions, enabling safe operation in panels and switchgear designed for higher voltage service. This combination—500A capacity, 3‑pole design, and 600V rating—offers a reliable, ready‑to‑use solution for demanding protection needs.

Ideal use cases

• Maintenance and retrofit projects where exact spec matching is required for existing Square D installations.
• Replacement in aging panels to maintain proper protection while preserving system architecture.
• New builds in factories and facilities that rely on solid three‑phase protection with a high current rating.

Compatibility and installation tips

Always verify fit and ratings against your panel data sheet before ordering. The MHL365001212 part number is the most reliable reference for compatibility with Square D panels and accessories.

What you get

• One Square D circuit breaker, model MHL365001212, 3‑pole, 500A, 600V.

Practical guidance for installation

Before you install, confirm that your conductors and enclosure space accommodate a 3‑pole device. Follow your panel’s guidance on termination torque and wiring practices to ensure a safe, dependable connection and the intended protection for your electrical system.