Square D | MA36450CBA | Circuit Breaker | 450A | 3-Pole | 600V

Meet the Square D MA36450CBA Circuit Breaker — a high-capacity, three-pole protection solution built for demanding electrical systems. With a 450A rating and 600V rating, this breaker is designed to handle substantial three-phase loads, delivering reliable interruption and protection for large industrial circuits.

• Amperage: 450A
• Poles: 3-Pole
• Voltage: 600V
• Part number reference: MA36450CBA

This breaker excels in maintenance, retrofit, and replacement scenarios where exact spec matching is essential. Its three-pole configuration is ideal for three-phase power distribution, helping protect equipment and ensure safe shutdown across all phases in demanding environments.

Who this is for

• Facilities managers upgrading aging panels or expanding three-phase systems in manufacturing facilities, data centers, and processing plants
• Electrical contractors performing retrofit work that requires precise Square D specifications
• Maintenance teams needing a compatible replacement that aligns with existing Square D installations

Why this matters

Using the exact part reference MA36450CBA reduces integration risk and downtime when swapping or upgrading breakers. The 450A, 3-pole, 600V combination supports robust protection for high-current circuits, helping you maintain reliability and safety in demanding applications.

Reliability and compatibility tips

• Always confirm fit and ratings before ordering — the part number is the best reference for compatibility with your panel or switchgear.
• Match the three-phase configuration to your existing wiring and load profile to ensure balanced protection across all phases.
• When installing, follow standard safety practices and consult a licensed electrician to verify proper connection and settings.

For projects requiring a dependable, specification-accurate circuit breaker with a proven track record in industrial settings, the Square D MA36450CBA delivers the performance and compatibility engineers rely on in critical power infrastructure.