Optional accessories for the circuit-breaker series NZM offers a comprehensive portfolio of application options for use world wide. The mounting is always flexible and easy thanks to the modular function groups. Notes: part no. contains parts for a terminal located at top or bottom for 3 or 4 pole switches. Enhancement of the busbar tag shroud to IP2X. Can be used for: NZM1(-4), PN1(-4), N1(-4)