... % copper wire 3.CE ,ISO9001.CCC YC Series Electric Motor 3.7KW YC explosion proof three phase asynchronous ... explosive mixtures of IIA Class, TI, T2, T3 or T4 are present. ExIIBT4 - safe for use in plants ... explosive mixtures of IIB Class, TI, T2, T3 or T4 are present. ExdIICT4 - safe for use in plants ... mixtures of IIC Class, TI, T2, T3 or T4 are present. 1. Ambinent tempertuer should not be more ...