These relays are tested for EMC/EMI noise in accordance with international IEC specifications. We design all these relays using the advanced technology digital outputs and inputs which are programmed as per the electricity requirements to ensure the safety. Through M.C.B power on/off system is in built to control relay testing. Current limiter and auto transfer are the continuous variables for the safety of phantom fault. Built in Trip status indicator and power on indicator. To perform the experiments the necessary patch chords and terminals are required for the relay. Digital voltmeter and ammeter. Electromechanical type. Built in time interval meter Stop/Start Timer(digital).