Schneider Electric C40N44V400 ComPacT NSX400N 4-Pole Circuit Breaker 400 A

The Schneider Electric C40N44V400 is a 4-pole ComPacT NSX400N molded-case circuit breaker engineered for high-performance protection in low-voltage electrical distribution systems. Rated at 400 A and designed for fixed mounting, this breaker features a Micrologic Vigi 4.3 electronic trip unit that provides adjustable protection against overloads, short circuits and earth leakage, making it a solid choice for demanding industrial and commercial power installations. With a 50 kA breaking capacity at 415 V AC and compliance to IEC 60947-2 standards, the C40N44V400 ensures dependable fault interruption in hefty circuits. Its compact form factor and ergonomic design help panel builders optimize space and simplify installation in distribution boards. Suitable for power distribution, motor feeds and main service panels where reliable protection and advanced trip functionality are essential, this model balances safety, adaptability and long-term performance.