ComPacT NSX 320F DC is a complete fixed 3-pole circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for applications using DC voltages. The breaking capacity (Icu) is 36 kA rms at 750 VDC. The operating voltage is 750 VDC. This product features a thermal-magnetic trip device (TM-DC) rated at 320 A. The TM-DC trip device provides adjustable thermal overload protection and adjustable magnetic protection. This 4-pole version (255 mm x 140 mm x 110 mm) comes with a variety of optional features and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications.