This ComPacT NSX400H is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all standard and special applications. The breaking capacity (Icu) is 70 kA rms at 415 VAC 50/60 Hz. The operating voltage is 440 VAC 50/60 Hz. This product features a MicroLogic 4.3 Vigi electronic trip unit rated at 400 A and integrated adjustable residual current protection. MicroLogic 4.3 Vigi also offers customizable long-term and short-term protection functions as well as fixed instantaneous protection. This 3-pole version (140 mm x 255 mm x 110 mm) is supplied with a wide range of optional features and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications. ComPacT NSX400H is part of Schneider Electric's EcoStruxure Power architecture.