Optional accessories for the NZM circuit breaker series offer an extensive portfolio of application options for worldwide use. Installation is flexible and simple thanks to modular function groups. Notes: Not UL/CSA approved according to IEC/EN 60947-2. Suitable for use in three- and single-phase systems. Pulse current sensitive according to the total current principle. For 4-pole circuit breakers NZM2-4 and load-break switches N2-4. Mains voltage independent Ue = 280 .. 690V 50/60 Hz. Auxiliary switches (1s, 1 NC integrated) are reset using the reset button. Not in combination with plug-in technology, insulating housing or main switch kit for side wall installation with mounting bracket. Rated ultimate short-circuit breaking capacity is determined by the NZM2 fitted. When using a load-break switch N2, by the backup fuse to be used. See technical data. Can be used for: NZM2-4, N2-4