... circuit breakers(rccbs,elcbs,mcbs,rcds),Contactors,Relays & other electrical appliance.Supply the best support & service, yield a win-win. TOI7N Isolator ... Construction and feature1,Capable of switch electric circuit with load.2,Provide functionof isolation. ... 230.400V AC4,Rated frequency:50/60Hz5,Rated short-circuit making capacity:3KA.6,Rated withstand current:1500A ...