BK series machine tool control transformer is a kind of new product by reference to sample of SlMENS Company,it accords withstandards ike VDE0550,IEC204-1.EC439,GB5226,etc.t is suitable for Ac circuit of 50-60Hz,ouput rated voltage less than220Vinput ratedvoltage less than 500V,worked as control power supply for mechanical equipment and general electrical appliance and as powersupply for worklighting and signal lamp.