Eaton E34PB1-1X 30mm Corrosion Resistant Pushbutton, Black Assembled, 30.5 mm Corrosion Resistant Pushbutton, Watertight-Oiltight, Non-illuminated, Black Plastic Flush Operator with Momentary Action, No Light Unit, 600V Rated, 1 NO & 1 NC Contacts. NEMA Rating: 3, 3R, 4, 4X, 12, 13.