Square D | MHB36350 | Circuit Breaker | 350A | 3-Pole | 600V

Square D MHB36350 Circuit Breaker is a rugged, three‑pole protection device designed for demanding electrical distributions. Built for maintenance, retrofit, and replacement projects, this 350A, 600V breaker fits where exact specifications matter and compatibility is critical.

Key specifications

• Amperage: 350 A
• Poles: 3-Pole
• Voltage: 600 V

Why this matters in real-world use

In three-phase systems, a 3-pole breaker protects all conductors simultaneously, reducing risk during faults. A 350 A rating is well-suited for hefty feeders and motor-start applications, while a 600 V rating aligns with typical industrial equipment and panel requirements. The MHB36350 is the precise reference you need when retrofitting or replacing a unit in existing Square D panels or assemblies that call for this exact part.

Ideal use cases

• Maintenance shutdowns in industrial facilities where downtime must be minimized
• Retrofit projects upgrading legacy panels to current protection standards
• Replacement in systems that specify the MHB36350 part number for compatibility

Fitment and verification
Before ordering, confirm fit and ratings. The part number MHB36350 is your best reference for compatibility with Square D panels and assemblies.

When you choose Square D, you’re selecting a legacy of reliability for critical electrical infrastructure. This 350A, 3‑pole, 600V circuit breaker is ready to help you safeguard equipment, reduce electrical faults, and simplify maintenance planning in demanding environments. For electricians and facilities managers aiming for a straightforward upgrade path, this component provides a precise, dependable option without guesswork.