The A0220 Arc Detector is a photo electric sensor. It has a sensitive area of 180˚. Sensor signal is a mA current signal of 0.5 mA / klux. The sensor includes 10 m of shielded two-wire electrical cable which can easily be shortened or extended to a maximum of 50 m. Use Belden 85240 or equivalent cable (2x 0,50 mm2). The sensor is compatible with the D0100, D0900, D0910, D0920, D1000 and PGR-8800 Littelfuse Selco Arc Flash Relays.