Item no. 789-665 Ground resistance signaling module; Ground fault alarm via digital output; Supply voltage: 24 VDC; Module width: 18 mm Item no. 789-665 Ground resistance signaling module Please wait ... List price per piece* On request Price and availability after Your price per piece* On request PU (SPU): 1 Piece Item no. 789-665 Ground resistance signaling module Please wait ... List price per piece* On request Price and availability after Your price per piece* On request PU (SPU): 1 Piece