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: Off position can be locked with up to 3 padlocks (shackle thickness 4-8mm). Cannot be combined with cover frame. Can be used for: NZM1(-4), NZM1(-1), PN1(-4), N(S)1(-4)