Working Environment： Working Temperature:-30℃?0℃。 Heat Proof: Type 2 (As temperature is 55℃, relative humidity is 95%) Protective Grade:IP20 Environment Protection The insulative material used conform to the EU Standard The metal material used conform to the EU Standard RATED CURRENT:1,2,4,6,10,16,20,25,32,40,50,63 POLE:1,2,3,4 RATED VOLTAGE:230V,400V BREAKING CAPACITY:6000(M),10000(H)