Westinghouse | KA3100 | Circuit Breaker | 100A | 3-Pole | 600V

Westinghouse KA3100 Circuit Breaker delivers reliable three‑phase protection for demanding electrical environments. With a 100A rating and a 3-Pole design, this breaker safeguards all three hot legs in 3‑phase circuits, helping prevent damage from overloads and short circuits. Built for maintenance, retrofit, and replacement projects, it’s a practical choice for upgrading panels that require the KA3100 specification.

• Amperage and configuration: 100 A, 3‑pole design to protect every phase of a 3‑phase system
• Voltage rating: Up to 600V, suitable for a wide range of commercial and industrial distributions
• Application fit: Ideal for panel retrofits, component replacements, and new installations that need the KA3100 form factor
• Compatibility reference: The KA3100 part number is your best guide to ensure proper fit and operation with compatible panels
• Installation mindset: Designed for straightforward replacement with minimal downtime, helping you maintain service continuity

This breaker is well-suited for applications like motors, pumps, HVAC systems, and other critical loads on 3‑phase power up to 600V. It’s an excellent choice for facilities engineers, maintenance technicians, and electricians who need a dependable, like‑for‑like replacement that matches the exact KA3100 specifications.

Key considerations for purchasing

• Always confirm the panel’s required amp rating and the KA3100 form factor before ordering
• Use the KA3100 part number as the primary compatibility reference to avoid mismatches
• Plan for a smooth replacement by noting existing wiring configurations and ensuring proper isolation procedures