Arc detector OS is an optical sensor used in the arc protection system for optical arc detection. The integrated cable of optical Arc detector is connected directly to the input terminals of Arc Monitor ZELK-2 or ZELK-3. If more than 6 Arc detectors are connected to Arc Monitor ZELK-3, additional terminal-strip should be mounted near the Arc monitor for Arc Detector connection.

• simple connection to Arc Monitor input terminals
• handling without special care
• cable length adjustable according to plants demands
• small dimensions and easy mounting in the switchgear