JBK5 series machine tool control transformers are the latest transformer series introduced by our company from Germany in themid-1990s. On the basis of domestic JBK3 series machine tool control transformers, we have further absorbed foreign similarproducts over the years, optimized foreign advanced methods and terminal structures, combined terminals and frameworks, so asto improve the protection level to lP2LX and prevent accidental contact with the circuit. Using domestic IT cold pressed wiringterminals, the wiring method can increase the density of wiring.The connection between the silicon steel sheet and the silicon steesheet of the transformer, as well as the connection between the silicon steel sheet and the botom plate, are all welded using argonarc welding technology, forming a whole, concise and clear. Especialy for the one-ime forming of the base plate, the installationdimensions are more accurate than the JBK3 series. The use of high-quality anti-corrosion aloy materials greatly improves thereliablity of grounding performance and comprehensively improves product quality. This product meets relevant intemational andnational standards such as VDE0550, IEC204-1, IEC439, JB/T9446-1999, GB5226, and has been awarded the "CE" certificationby the European Community. interchangeable with foreign products.