Square D | KC34250CBA | Circuit Breaker | 250A | 3-Pole | 480V

Square D KC34250CBA Circuit Breaker is the robust 250A, 3-Pole solution you need for 480V industrial power distribution. It’s designed for maintenance, retrofit, and replacement projects where exact compatibility matters — not a generic substitute. When your system runs on three‑phase 480V, this breaker delivers reliable overcurrent protection across all three poles, ensuring simultaneous isolation and safe shutoffs during faults.

Key specifications

• Amperage: 250A
• Poles: 3-Pole
• Voltage: 480V
• Reference compatibility: KC34250CBA is the best reference for compatibility

Why this Square D KC34250CBA stands out

Unique to Square D’s lineup, this breaker is built to endure industrial duty cycles with dependable trip performance and durable construction. The 3-Pole design ensures simultaneous disconnection of all phases, reducing arc flash risk and protecting downstream equipment during faults. The 250A rating supports heavy, continuous loads typical of manufacturing facilities, large HVAC plants, or data-center infrastructure that rely on 480V systems.

Ideal use cases

Use this KC34250CBA in retrofit projects where an exact 250A, 3-Pole, 480V replacement is required, or in new installations within industrial facilities that run on 480V three-phase power. It’s particularly well-suited for electrical panels and distribution gear that demand Square D compatibility and standardized part numbers for straightforward maintenance and service records.

Compatibility & installation notes

• Always confirm fit and ratings before ordering to avoid compatibility issues with your panel or bus configuration.
• Part number KC34250CBA serves as the best compatibility reference when sourcing replacements or spares.
• Review your panel’s voltage class and available space to ensure proper integration with your protection scheme.