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: including terminal marking for main switch. Included as standard in main switch assembly kit. Marking of the input side of the switch is possible. Can be used for NZM3(-4), PN3(-4), N(N/O)3(-4), NZM4(-4), N(N/O)4(-4)