The P9L Dome series low level pushbutton switches feature a contoured dome style pushbutton and share similar size and characteristics to the P7 series. Major differences are plastic housing construction and the availability of a shorting bar contact arrangement. There are two button versions: low button profile and high button profile. The P9L comes with a threaded case for hex nut mounting or with a snap-in case. The switch series features short behind panel depth. They also offer excellent mechanical and electrical performance while operating under severe conditions found in demanding applications. The P9L Dome series is offered in dusttight and moistureproof sealed construction. One million mechanical operations and an electrical life of 500,000 operations at 50mA resistive. Watertight sealing is available simply by adding a “W” suffix to the part number to specify IP68S rating.