Westinghouse | NB2800S | Circuit Breaker | 800A | 3-Pole | 600V

Westinghouse NB2800S Circuit Breaker — a robust, high-capacity protection device built for demanding electrical systems. With a rating of 800A, three poles, and a 600V operating threshold, this breaker is designed for installations that require reliable, heavy-duty circuit protection and straightforward maintenance, retrofits, or replacements.

Why choose NB2800S? It’s not just a spec sheet item; it’s a precise-fit component that helps keep panels and equipment operating when you need to swap like-for-like. The NB2800S part number is the best reference for compatibility, ensuring you don’t run into mismatched bus bars or mounting footprints during installation.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V
• Part number: NB2800S

Ideal use cases

• Maintenance and service where an exact replacement is required for Westinghouse panels or assemblies configured for 800A, 3-pole, 600V protection.
• Retrofits and modernization projects that need to upgrade or restore a specific circuit protection profile without changing upstream equipment.
• New installations that replicate existing NB2800S specifications to maintain system consistency and protection alignment.

Installation and compatibility tips

• Before ordering, confirm fit and ratings match your panel’s configuration and application. Use the NB2800S part number as the primary compatibility reference.
• Plan for replacement in panels that operate at or near 600V and protect high-current circuits. Verify contact reliability and mounting geometry during installation to minimize downtime.
• Follow all safety protocols and lockout/tagout procedures when replacing breakers in live systems.

With the Westinghouse NB2800S, you’re selecting a purpose-built solution for high-current, three-pole protection that pairs seamlessly with compatible panels and feeders. It’s designed to deliver dependable performance in commercial and industrial environments where uptime matters and replacement parts need to match exact specifications.