The adapter enables the easy exchange of current and AC voltage measurement devices with an attached power cord. The adapters are simply inserted between the device and power outlet. It can be an individual current of the Phase L, the Neutral N and leakage currents in the protection conductor PE can be measured without contact. The symmetrical loading of the three phases is so quick and easy to control. The isolated measurement webs are suitable for most of the AC current clamps. In addition, safety test sockets for direct measurement of the individual conductors, for example Voltage measurement.This text is machine translated.