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: Complete including rotary drive and coupling parts. External warning sign/designation plate can be clipped in. Standard, black/grey. Can be locked in the 0 position on the handle with a maximum of 3 padlocks. With door lock. Can be used for: NZM4(-4), N(S)4(-4)