WP28A Waterproof On-Off Toggle Switch Waterproof, Single Pole, Single Throw On-Off Toggle Switch. The switch body and contacts are imbedded in urethane to make them waterproof. There are wire leads for the connections. A rubber boot protects the toggle and front surface of the switch from dirt and moisture. This heavy duty switch mounts in a .48” diameter hole and has 6 inch long wire leads. Note: When installing the switch, we recommend a bead of silicone around the base of the boot to ensure a watertight seal between the switch boot and your mounting surface. Extra Toggle Boots are available. Specifications SPST On-Off 30A 12VDC, 15A 125VAC, 10A 250VAC, Mounts in a .48” diameter hole and has 6 inch long wire leads Dimensions are 1.5” L x 1” W x 1.5” D. UL & CSA Approved.