Rule 3-Way Rocker Panel Bilge Pump Switch 43 The Rule 3-Way Rocker Panel Bilge Pump Switch is a 12V switch with a black plastic panel. It features a fail-safe spring return that prevents the pump from being left on when used manually. With 3 positions automatic, off, or manual, a built-in fuse holder, and a red light that indicates when the pump is running, this bilge pump switch provides great satisfaction and long lasting use. This switch controls any bilge pump with an automatic float switch.