This ComPacT NSX250HB2 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 100 kA rms at 500 VAC 50/60 Hz and 100 kA rms at 690 VAC 50/60 Hz. The operating voltage is 690 VAC 50/60 Hz. This product features a MicroLogic 2.2 electronic trip unit with a rating of 160 A. The MicroLogic 2.2 trip unit offers customizable long and short time protection functions as well as fixed instantaneous protection. This 4-pole version (140 mm x 161 mm x 86 mm) comes with a variety of optional features and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications. ComPacT NSX250HB2 is part of Schneider Electric's EcoStruxure Power architecture.