P7-216122, M8805/110-2162 OTTO pushbutton switch, sealed against dust & moisture The P7 series incorporates OTTO’s patented double break design in a significantly smaller package than the P1 series. These subminiature switches embrace today’s technology requirements by allowing for a large number of switches to fit within a faceplate. The long life snap-action design is protected from the environment by a silicon rubber boot, operating on a patented “rolling sleeve” principle that gives long sealed life. This version is a military grade momentary action, normally open, 2 circuit switch with a black body and button. Solder terminals.