This ComPacT NSX400R 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 200 kA rms at 415 VAC 50/60 Hz and 45 kA rms at 690 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 400 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 NSX400R is part of Schneider Electric's EcoStruxure Power architecture.