Westinghouse | NB3800PF | Circuit Breaker | 800A | 3-Pole | 600V | 200kA

Meet the Westinghouse NB3800PF—an industrial-grade circuit breaker engineered to protect high-demand 600V distribution networks. With an 800A rating and a 3-pole design, this breaker delivers coordinated three-phase protection, helping to prevent unbalanced faults and minimize equipment stress across panels, switchgear, and feeders. Its robust 200kA interrupting capacity means it can halt severe short circuits quickly, shielding your critical infrastructure from costly damage.

Built for maintenance, retrofit, and replacement projects, the NB3800PF fits into established systems where matching specifications matter. When you’re upgrading or replacing a breaker, the part number NB3800PF is your strongest reference for compatibility—confirm fit and ratings before ordering to ensure a seamless installation.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V
• Interrupting rating: 200kA
• Part number: NB3800PF

Why this Westinghouse breaker stands out

Reliability you can trust from a legacy brand, paired with a design that prioritizes safe, fast interruption in demanding environments. The 3-pole configuration ensures synchronized protection across all phases, reducing the risk of uneven loads and equipment damage. The high 200kA interrupting rating provides a strong safety margin for serious faults, helping protect downstream equipment, wiring insulation, and personnel.

Ideal use cases

• Maintenance: Quick, like-for-like replacement to minimize downtime while preserving established protection profiles.
• Retrofit: Upgrade older systems to modern 800A, 3-pole protection for improved reliability in 600V networks.
• Replacement: When an existing breaker reaches end-of-life, install NB3800PF to maintain compatibility with your existing panel and wiring footprint.

Important compatibility note: Always verify fit and ratings before purchasing. The NB3800PF part number is the most reliable reference to ensure your equipment aligns with this breaker’s form factor and electrical specifications.