MasterPact NT and NW is the proven generation of open circuit breakers up to 6300 A, incorporating the latest technologies. The MasterPact NT and NW consists of three sizes: NT from 630 to 1600 A, NW from 800 to 4000 A, and NWb from 4000 to 6300 A. It can be configured as fixed installation or plug-in technology, as a power or load disconnect switch. The integrated protection and tripping device MicroLogic can be equipped with a variety of functions and accessories. Open load disconnect switch MasterPact NW 1000 A with short-circuit making capacity Icm 187 kA at 690 V, rated short-time current Icw 85 kA (1 s), 3-pole, basic switch, plug-in technology without MicroLogic. The MasterPact can be ordered through the online configurator.