Westinghouse | NB31200F | Circuit Breaker | 1200A | 3-Pole | 600V | 30kA | Bolt-On

The Westinghouse NB31200F circuit breaker is a purpose-built, high-capacity protection device designed for demanding power distribution applications. With a 1200A rating, 3 poles, and a 600V operating nominal, it delivers reliable overload and short-circuit protection for large feeders, main disconnects, and critical distribution paths. Built for maintenance, retrofit, and replacement projects where exact specs matter, this bolt-on breaker ensures a secure, field-serviceable solution that aligns with your existing panel architecture.

• Amperage: 1200A
• Poles: 3-pole configuration for three-phase systems
• Voltage rating: 600V
• Interrupting capacity: 30kA
• Mounting type: Bolt-On for straightforward installation into compatible panels
• Compatibility reference: Part number NB31200F is the best reference for matching fit and ratings

What sets the NB31200F apart is its robust bolt-on design, which provides a secure mechanical connection ideal for industrial panels and assemblies where vibration and long service life matter. This isn’t a generic breaker—it’s a high-capacity, three-phase protection solution purpose-built to handle substantial load profiles and transient demands without compromising safety or performance. When you need a replacement that mirrors the exact specifications of your existing setup, the NB31200F ensures consistent trip characteristics and electrical coordination with your system.

Ideal use scenarios include:

• Replacing a worn or obsolete three-pole breaker in industrial control panels
• Retrofit projects where a 1200A, 3-pole, 600V bolt-on solution is required
• Main-distribution or feeder protection in large commercial or light industrial facilities
• Maintenance tasks that demand exact spec compatibility to minimize system downtime

Installation and compatibility notes to keep in mind:

• Always confirm fit and ratings before ordering; use the NB31200F part number as the primary reference to ensure compatibility with your panel and bus configuration
• Suitable for bolt-on mounting in panels designed to accept this form factor and installation method
• Best suited for applications requiring high current handling and reliable interrupting performance for three-phase circuits

Choosing the Westinghouse NB31200F means prioritizing precise specifications, dependable protection, and a straightforward replacement pathway when upgrading or maintaining large electrical systems. If your panel design calls for a 1200A, 3-pole, 600V bolt-on breaker with a 30kA interrupting capacity, this part delivers the performance you need with a fit that’s engineered for reliability and long-term service life.