Westinghouse NB21200F Circuit Breaker, 1200A, 2-Pole, 600V

Westinghouse NB21200F Circuit Breaker — a rugged, industrial-grade two-pole protection device designed for heavy-duty electrical service, maintenance, and replacement projects. With a 1200 A rating and a 600 V maximum, it delivers reliable overcurrent protection for demanding panels and feeders.

In real-world installations, this NB21200F protects critical equipment and wiring from overloads and short circuits, helping minimize downtime and equipment damage in industrial settings. The two-pole design ensures that both live conductors are opened simultaneously for safer, more predictable fault isolation.

• Two-pole design provides synchronized disconnection of both conductors for safer fault clearing
• Amperage rating: 1200 A, suitable for main feeders and high-load circuits
• Voltage rating: 600 V for a wide range of industrial applications
• Trusted Westinghouse reliability and performance in demanding environments
• Clear compatibility check: verify fit using the NB21200F part number for your specific application

Ideal applications

• Industrial electrical service panels, switchgear, and distribution feeders
• Maintenance or replacement projects in manufacturing environments
• Machinery and heavy-load circuits requiring robust, reliable protection

Compatibility and purchase guidance

To ensure a correct fit, verify your application requirements against the NB21200F part number. If you’re unsure about compatibility or how the part number matches your equipment, send us a message — we’re ready to help confirm fit and recommend the right configuration for your system.

• Manufacturer: Westinghouse
• Part Number: NB21200F
• Product Type: Circuit Breaker
• Amperage: 1200 A
• Poles: 2
• Voltage: 600 V