Three-phase socket adapter 16 A for PAT (4P, switchable)

The adapter enables safety tests of devices (or extension cords) supplied from 16 A three-phase sockets. The switchable versions are equipped with a rotary switch shorting L of the measuring socket on the face of the meter with adapter phases - individually or collectively. The use of a set of adapters allows testing of 3-phase extension cords, including polarization test. It is 4-pole adapter.