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: Not UL/CSA approved. Incl. screw fastening. Alternatively: fastening clip for DIN rail mounting. Project planning note: The transformer diameter must be selected 1.5 times larger than the sheath diameter of the conductors being passed through. Can be used for: NZM1, NZM1-4, N1, N1-4, NZM2, NZM2-4, N2, N2-4, NZM3, NZM3-4, N3, N3-4, NZM1-NA, NZM2-NA, NZM3-NA