Start/Stop, I/O Double/Triple Switches Green and red 22mm diameter, spring return double insulated bezel push buttons Stop button fitted with 1 N/C contact block, start button fitted with 1 N/O contact I/O with red LED pilot light available STOP START; version has marking on legend holder and legend below head Double insulated IP65 rated Polycarbonate construction Dimensions 106x68x62mm (incl button) (Double)