Arc Detecting Relay 24-220 V A0300.0010 - Sensor H-Type 5 m cable DC for station battery.

The D0100 is a detecting relay which can monitor up to 16 arc detectors in parallel through junction boxes D0400 or D0500. In case of an arcing fault, the relay generates a fast tripping pulse, less than 1 m sec., to the circuit breaker(s) supplying the installation. The arcing time is thus reduced to the mechanical opening time of the circuit breaker. The relay is solid state with complete isolation between input and output. Thus the relay and the circuit breaker may have different pilot voltages.