This compact NSX400N is a complete fixed-mount 4P 3d circuit breaker designed to optimize space and breaking capacity. It is an optimum choice for all standard and special applications. The breaking capacity (ICU) is 50 kA eff. At 415 VAC, 50/60 Hz. The operating voltage is 440 VAC 50/60 Hz. This product has an electronic release device MicroLogic 4.3 Vigi with a rated power of 400 A and a built-in adjustable differential current protection. MicroLogic 4.3 Vigi also offers customizable long-term and short-term protection features and fixed instantaneous protection. This 4-pole version (185 mm x 255 mm x 110 mm) comes with various optional functions and accessories. It complies with international standards (IEC 60947), CCC, EAC and Marine specifications. Compact NSX400N is part of Schneider Electric's EcoStruxure power architecture.This text is machine translated.