ComPacT NSX 320S DC is a complete fixed 4-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 100 kA rms at 750 VDC. The operating voltage is 750 VDC. This product has a thermal-magnetic trip device (TM-DC) with a rating of 320 A. The TM-DC trip device provides adjustable thermal overload protection and adjustable magnetic protection. The dimensions are 255 mm x 185 mm x 110 mm (H x W x D). It complies with the international standard EN/IEC 60947.