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: For DIN rail mounting of the PFR-W-35 transformer and all larger ones. 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