A rocker switch is a type that rocks (rather than trips) when pressed, which means one side of the button is lifted while the other side is depressed. The ROCKER SWITCH ON-OFF-ON RK19540 is a standard switch ON-Off-On Double Pole Double Throw DPDT. Rocker switches are the spring-loaded switches commonly used in both households, professional, and recreational equipment. The rocker switch is a non-corrosive plastic construction that can use for a longer time. These switches have demountable actuators if you need to replace them with a new one. The brass construction terminals resist corrosion and are good electrical conductors. Key Features The non-corrosive plastic construction can withstand the marine environment Switch Positions: On-Off-On DPDT Secure against dirt and prolonged spray to IP66 and IP68 standards Removable actuators, easy to install Brass blade terminals, silver contacts Rated: 20 amps @12 VDC Specifications BRAND: SEASTAR SOLUTIONS SKU: RK19540 UPC:808282305970 Weight:0.11 LBS Switch Positions: On-Off-On DPDT, Rating: 20amps@12VDC. Brass blade terminals, silver contacts, Non-corrosive plastic construction.