ABB circuit breaker

(This text is machine translated) The selective main circuit breakers of the S750 series from ABB are certified according to DIN VDE 0641-21 as voltage-independent selective main circuit breakers (SHU) and are designed for the highest overvoltage category. Their area of ​​application is diverse: as a disconnecting device at the meter station in accordance with the TAB of the network operators or VDE-AR-N 4101 as well as in all low-voltage main distribution boards to protect distribution circuits and as an isolating device with a disconnecting function. The special selectivity properties to ensure high system availability should be emphasized. The S750 series is intended for direct mounting on a 4-pole or 5-pole busbar system 40mm (12mm x 5/10mm). Regardless of the rated current of the S750, up to 50mm² and max. 100A can be fed directly to the busbar system via the lower terminal. Devices of the S 750 family include an integrated blocking option that enables the 3 poles of a three-phase supply to be blocked...