This kit consists of an ELMEASURE make earth leakage relay. The connections are brought to front panel through terminals. A three phase AC voltage supply of 415V has to be given externally. Indicators are provided on each phase to ensure there is input. The three phase supply is given to the relay through an externally provided core balance current transformer (CBCT). A time interval meter is provided to measure the time taken for the relay to trip. A switch is provided to switch between setting the relay and testing the relay along with indicators.