This compact NSX400HB1 is a complete fixed-mounted 4P 4d circuit breaker designed to optimize space requirements and switch-off capabilities. It is an optimum choice for all standard and special applications. The breaking capacity (ICU) is 85 kA eff. At 500 VAC 50/60 Hz and 75 kA eff. At 690 VAC 50/60 Hz. The operating voltage is 690 VAC 50/60 Hz. This product has an electronic trigger MicroLogic 6.3 E with a rated power of 400 A and an adjustable ground-fault protection (with OFF position). The MicroLogic 6.3 E trigger device offers adjustable long-term, short-time and instantaneous protection. MicroLogic 6.3 E has an integrated display for fine-tuning and displaying the energy meter. This 4-pole version (185 mm x 255 mm x 110 mm) comes with various optional functions and accessories. It complies with international standards (IEC 60947), CCC, EAC and Marine specifications. Compact NSX400HB1 is part of Schneider Electric's EcoStruxure power architecture.This text is machine translated.