Leakage central – blocking relay type UKI-24C

Leakage central-blocking relay type UKI-24C, is designed to control the value earth resistance of grid for the single-phase operating voltage 24V or 42V, 50 Hz with isolated neutral point of the transformer. The relay in cooperation with the main contactor, prevents the application of voltage to the controlled section of the grid by lowering value of insulation resistance under the setting level. It is designed for use in mine face pits in non-explosive conditions, in conditions without methane explosion hazard and classified as A coal-dust explosion hazard.