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: Pulse current sensitive. Rated control supply voltage: Us = 230VAC (50/60 Hz). Auxiliary switch (1 changeover contact) integrated. Through-hole transformer must be ordered separately. Not UL/CSA approved. Can be used for: NZM1, NZM1-4, N1, N1-4, NZM2, NZM2-4, N2, N2-4, NZM3, NZM3-4, N3, N3-4, NZM4, NZM4-4, N4-4