... , high performance for heavy industry where very high short-circuits may occur. Draw-out/Fixed, 3 and 4-pole versions2. Benefits ... functions, JEW1-2000A/800A Smart circuit breaker, is used : 0) in power stations, factories, mines (for 690V) and modern high buildings ... , especially for the distribution system of intelligentized buildings.1) in the circuit of AC 50Hz, rated voltage 400V, or 690V ...