Digital Protection Relay MELPRO- D Series detects shorting and ground fault failures in electric power system equipment in office buildings, factories, etc. They also aim to prevent those failures from impacting other locations, by sending control signals to every circuit breaker in order to isolate the affected section from the electric power system. These products embody design for ease of use—featuring grips that allow easy dismounting of the main unit, a functional display that is easy to read even in dimly lit locations and more.