Schneider Electric | NSX400N | Circuit Breaker | 400A | 3-Pole | 415V

Schneider Electric NSX400N is a robust circuit breaker designed for precise overcurrent protection in 415V, three-phase electrical systems. With a 400A rating and a 3‑pole configuration, this NSX series device is built to integrate smoothly into panels and enclosures that require exact specifications for reliable performance.

Key specifications

• Amperage: 400 A
• Poles: 3-Pole
• Voltage: 415 V

Ideal uses and scenarios

• Maintenance and service work on 415V three-phase distribution systems where a precise spec match is essential.
• Retrofit projects that replace aging or incompatible breakers without altering existing wiring or panel layouts.
• Replacement in legacy equipment where the NSX400N’s exact reference ensures a seamless fit and predictable performance.

Why choose the NSX400N

Unlike generic substitutes, the NSX400N is the precise Schneider Electric reference for 400A, 3‑pole, 415V protection. Its compatibility reduces downtime and eliminates guesswork when upgrading or refreshing critical power distribution. The part-number accuracy—NSX400N—is the best reference for ensuring you’re selecting the right unit for your existing panel, bus layout, and breaker characteristics.

Installation and compatibility notes

• Always confirm fit and ratings before ordering to ensure the breaker matches your panel’s design and voltage class.
• Use the NSX400N part number as the primary reference when cross-checking with schematics, panel labels, and maintenance records.
• Designed for 415V three-phase systems, making it a straightforward replacement in compatible equipment without extensive rewiring.

For ongoing reliability in critical power applications, the Schneider Electric NSX400N delivers a precise, dependable solution that aligns with your maintenance, retrofit, and replacement needs.