These circuit breakers are known to have superb quality. It has a nominal current of 630 to 1600 A which makes them world class. What makes this unique is it has 1 single physical size from 630 to 1600 A and a single pole pitch of 70 mm. Another great feature of this remarkable switcher is it has 4 micrologic control units enriched by measurement, energy management and network analysis functions. With its earth leakage protection built into electronic protection and 3 and 4-pole versions makes this switcher one of the best. It has a voltage rating up to 690V.