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 the upper switch side for 4-pole switches N..-S1-DC, which are used 2-pole for DC. The bridges each switch 2 current paths in series. Infeed and outfeed freely selectable at the bottom or top. = 1250A: For 65 °C ambient temperature Connection at the bottom via module plates NZM4-4-XKM2S-1600. Bridge kit with cover Can be used for: N3-320(400)-S1-DC