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: Approved according to IEC/EN 60947-2, not UL/CSA. Suitable for use in three- and single-phase systems. Pulse current sensitive according to the summation current principle. For 3- and 4-pole circuit breakers NZM1(-4) and switch disconnectors N1(-4). Mains voltage dependent Ue = 200 .. 415 V 50/60 Hz. At I ¿n = 0.03 A: Delay time tv always set to 10ms. Warning message > 30 % I ¿n via yellow LED. Trip message can be retrofitted with a maximum of 2 auxiliary switches (HIAFI): N/O = M22-K01, N/C = M22-K10 are reset via reset toggle lever. When using the tripping auxiliary switch in the residual current block, the break contact works as a make contact and the make contact as a break contact. Double contact not permitted. Not in combination with an insulating housing or main switch kit for side wall installation with mounting bracket. NZM1-XFI..R cannot be used in combination with the lower cover NZM1-XUSA. NZM1-XFI..U cannot be used in combination with a shunt or undervoltage release, leading auxiliary switch. The rated short-circuit breaking capacity is determined by the attached NZM1, NS1. When using a load-break switch N1, by the backup fuse to be used. See technical data. Can be used for: NZM1-4, N1-4