JBK series machine tool control transformer for AC 50~60 Hz, input voltage less than660V circuit, is used as the control power supply in all kinds of machine tools,machinery and equipment, locaI lighting and light power.With imported materials and advanced technology of manufacturing, this series oftransformers can be a replacement of other controller for a working, reliable, lowprwer consumption, small size, wiring safety, wide applicability and so on.