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 in fixed installation or withdrawable design. The integrable protection device MicroLogic 1.0 can be equipped with a variety of functions and accessories. Masterpact NW40HDC-C 4000A 4P Icu is 100kA at 500VDC Basic switch fixed installation without Micrologic