This ComPacT NSX250HB1 is a complete fixed 4P 4d 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 85 kA rms at 500 VAC 50/60 Hz and 75 kA rms at 690 VAC 50/60 Hz. The operating voltage is 690 VAC 50/60 Hz. This product has a MicroLogic 6.2 E electronic trip unit with a rating of 160 A and adjustable earth fault protection (OFF position). The MicroLogic 6.2 E trip unit offers adjustable long-term, short-term and instantaneous protection. MicroLogic 6.2 E has an integrated display for fine adjustment and display of the energy meter. This 4-pole version (140 mm x 161 mm x 86 mm) comes with a wide range of optional features and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications. ComPacT NSX250HB1 is part of Schneider Electric's EcoStruxure Power architecture.