Westinghouse | NC3900 | Circuit Breaker | 3-Pole | 600V

Introducing the Westinghouse NC3900, a purpose-built 3-pole circuit breaker engineered for reliability in demanding electrical environments. With a 600V rating, it provides solid protection for three-phase power systems while fitting retrofit and replacement projects that require exact specifications.

• Poles: 3-Pole
• Voltage: 600V
• Part number: NC3900 — the clearest reference for compatibility

Key benefits and what it means in practice:

• Simple maintenance and seamless replacement for panels designed around NC3900-style breakers, reducing downtime.
• Retrofit-friendly form factor that aligns with existing wiring and mounting footprints, helping you upgrade without major panel alterations.
• Clear compatibility signals: always confirm fit and ratings before ordering to ensure you’re selecting the exact part your system requires.

Ideal use scenarios:

• Industrial control panels and commercial distribution boards that specify a 3-pole, 600V breaker
• Project work involving upgrade cycles or equipment refreshes where maintaining spec parity is critical
• Repair or spare-parts procurement where the NC3900 part number is your best reference

How it stands apart:

• Authentic Westinghouse design trusted in many electrical installations, prioritizing compatibility and predictable performance in three-phase networks.
• Explicit part-number alignment (NC3900) to minimize guesswork during procurement and reduce risk of mismatched breakers.
• Versatile for both ongoing operations and planning future upgrades, thanks to its standard 3-pole, 600V rating that matches common industrial and commercial systems.

Practical tips:

• Before ordering, verify your panel specification sheet or existing NC3900-part-number breakers to confirm the exact fit.
• Keep a spare NC3900 on hand for planned maintenance windows to minimize system downtime.
• Document the part number NC3900 in your asset register to speed future replacements and retrofits.