MasterPact NW-DC is the proven generation of air circuit breakers up to 4000 A, which are designed for direct current networks and incorporate the latest technologies. The MasterPact NW-DC is available for operating currents of 1000A, 2000A and 4000A at an operating voltage of 500VDC (type N) up to max. 900VDC (type H). It can be configured as a fixed installation or withdrawable device. The integrable protection device MicroLogic 1.0 can be equipped with a variety of functions and accessories Masterpact NW40NDC-C 4000A 4P Icu 85kA at 500VDC Version C Basic switch fixed installation without Micrologic