Optional accessories for the NZM circuit breaker series offer an extensive portfolio of application options for worldwide use. Assembly is flexible and simple thanks to modular function groups. Notes: Type suffix and type contain parts for a switch side at the top or bottom for 3- or 4-pole switches. Conversion kit for switches with screw connection. Installation inside the switch housing. O = mounted at the top. U = mounted at the bottom. U e 525 VAC. Use cover NZM2 (-4) -XSKA. Use wire end sleeves for fine-stranded and highly flexible conductors. The maximum specified cross-section can only be connected with multiple wires and without wire end sleeves. Can be used for: NZM2 (-4), PN2 (-4), N (S) 2 (-4)