Square D | KC11128 | Circuit Breaker | 125A | 3-Pole | 480V

Meet the Square D KC11128 circuit breaker—a precise, 125A, 3-pole protection device designed for 480V systems. Engineered for maintenance, retrofit, and replacement projects, it helps keep industrial electrical panels operating reliably while maintaining exacting compatibility with the original protection scheme.

• Amperage: 125A
• Poles: 3-Pole
• Voltage rating: 480V

Why this KC11128 matters for your project:

• Optimized for three-phase, 480V distribution, delivering dependable overload and short-circuit protection for heavy-duty equipment and critical processes.
• Ideal for replacement, retrofit, or maintenance where exact specifications are required to preserve panel coordination and safe operation.
• The KC11128 part number serves as the strongest reference for achieving compatible fit and performance with your existing gear.

Practical applications and use cases:

• Maintenance: Swap in a ready-to-install breaker that matches your panel’s original protection scheme to minimize downtime.
• Retrofit: Upgrade older installations with a modern 125A, 3-pole unit that aligns with your panel’s 480V three-phase design.
• Replacement: Quick, precise replacement for failed or degraded breakers in industrial environments without compromising safety margins.

Important installation notes:

• Before ordering, confirm that KC11128 fits your panel’s ratings, mounting footprint, and trip characteristics. The part number is the most reliable compatibility reference.
• Follow standard electrical safety practices during handling and installation to ensure a safe, effective replacement.

Designed for professionals who demand exacting protection in 480V, three-phase systems, the Square D KC11128 delivers dependable performance, streamlined compatibility, and peace of mind for critical electrical infrastructure.