Optional accessories for the NZM circuit breaker series offer an extensive portfolio of application options for worldwide use. Installation is flexible and easy thanks to modular function groups. Notes: Type contains parts for one switch side at the top or bottom for 3- or 4-pole switches. Insulation using cover NZM4(-4)-XKSA or phase separator NZM4(-4)-XKP required. Can be used for: NZM4, N(S)4