ABB S751/3-E35 – Selective main circuit breaker (measuring voltage: 230 V / 400 V, insulation test voltage: 50 Hz / 60 Hz. Ambient temperature: Operation: -25°C to +55°C, Storage: -40°C to +70°C

The selective main circuit breakers of the S750 series are certified according to DIN VDE 0641-21 as a voltage-independent selective main line circuit breaker (SHU) and designed for a layable and designed for the highest overvoltage category. Their field of application is varied: as a separator at the counteret according to the tab of the network operators or VDE-AR-N 4101 as well as in all low-voltage main distributions for the protection of distribution circuits and as an unlocking device with separation function. To be highlighted are the special selectivity properties for ensuring high system availability. The S750 series is provided for direct mounting on a 4-or 5-pin collecting rail system 40mm (12mm x 5 / 10mm). Regardless of the rated current thickness of the S750 can be fed via the lower terminal directly with up to 50mm² and max. 63a to the busbar system. Devices of the S 750 family include an integrated blocking capacity that allows simultaneous blocking of the 3 poles of a three-phase supply. The integrated locking slide locks in one or out position and can additionally be secured with padlock, wire clamp or cable ties.