Optional accessories for the circuit-breaker series NZM offers a comprehensive portfolio of application options for use world wide. The mounting is always flexible and easy thanks to the modular function groups. Notes: AC/DC current sensitivity according to the core-balance principle (in range 0 … 100 kHz). Observe response threshold dependence on frequency! See “Frequency response” characteristic curve. Adjusting buttons can be sealed. Can be used for NZM2-4, N2-4