Power supply unit type Z-3

Power supply unit type Z-3 is an electrical device designed for use in underground mining pits in non-explosive hazard conditions or on the ground. Power supply unit type Z-3 is designed for connecting and switching on two receivers of protection class II (especially power tools) for the rated voltage of 230 V. The device is equipped with power protection against short-circuits and overloads and provides possibility of control of ground continuity (protection circuit) which is carried out in supply switchgear.