This ComPacT NSX400N is a complete 4P 4d 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 50 kA rms at 415 VAC, 50/60 Hz. The operating voltage is 690 VAC 50/60 Hz. This product features a MicroLogic 2.3 electronic trip unit with a rating of 250 A. The MicroLogic 2.3 trip unit offers adjustable long and short time protection functions as well as fixed instantaneous protection. This 4-pole version (185 mm x 255 mm x 110 mm) is supplied with various optional features and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications. ComPacT NSX400N is part of Schneider Electric’s EcoStruxure Power architecture.