Westinghouse | HNB31000 | Circuit Breaker | 3-Pole | 600V | Bolt-On

Meet the Westinghouse HNB31000 — a purpose-built 3-pole circuit breaker engineered for dependable three-phase protection in industrial and commercial panels. With a bolt-on mounting design, this breaker integrates securely into compatible enclosures, delivering reliable overcurrent protection where uptime matters most.

Designed for maintenance, retrofit, and replacement projects, the HNB31000 helps you preserve system safety and continuity without overhauling your existing setup. Its 3-pole configuration ensures balanced protection across all three phases, making it an excellent choice for systems that demand consistent fault isolation.

Key specifications and capabilities

• Poles: 3-Pole — ideal for three-phase circuits
• Voltage rating: up to 600V — suited for industrial distribution and commercial power panels
• Mounting style: Bolt-On — provides a secure, rugged installation
• Part number: HNB31000 — best reference for compatibility
• Brand: Westinghouse

Who this is for

electricians and panel technicians working on legacy or upgraded electrical systems who need a reliable, compatible 3-pole solution. It’s particularly well-suited for retrofit projects where matching the exact part number is critical for panel compatibility and continued protection standards.

Why it stands out

Unlike generic, one-size-fits-all breakers, the Westinghouse HNB31000 is purpose-matched for 3-phase installations with a bolt-on design that minimizes vibration-related wear and simplifies field mounting. Its 600V rating aligns with a wide range of commercial and industrial applications, delivering predictable protection performance across your distribution network.

Practical use cases and tips

• Use in maintenance or replacement of aging panels where a direct HNB31000 (3-pole, 600V, bolt-on) fits the existing footprint and rating
• Ideal for retrofits that require the exact part reference to preserve warranty coverage and panel documentation
• Before ordering, verify fit and ratings against your panel’s manufacturer specifications and the part number reference to ensure seamless compatibility

To ensure optimal protection and panel compatibility, always confirm the fit with your specific electrical distribution setup and follow applicable installation guidelines. The HNB31000 is the right choice when you need a durable, three-phase bolt-on circuit breaker backed by Westinghouse quality and a clear reference for compatibility.