Optional accessories for the NZM circuit breaker series offer an extensive portfolio of application options for worldwide use. Assembly is flexible and easy thanks to modular function groups. Notes: Type contains parts for one switch side at the top or bottom for 3- or 4-pole switches. Increased contact protection to IP2X. When mounted on NZM3..-(C)NA or N3..-NA, the following applies: For 2 conductors, the maximum cross-section is 70 sqmm. Can be used for: NZM3(-4), PN3(-4), N(S)3(-4)