The G12AV Toggle Switches ON-NONE-ON SPDT manufactured by NKK Switches is a Single Pole Double Throw (SPDT) toggle switch with three connection terminals: on, none, and on. It is typically used to switch between two different functions or controls. It is an insulated-type switch, meaning it is designed to protect against shocks and short circuits, making it suitable for use in a range of home electronics, including appliances and audio systems. The G12AV is rated at up to 3A at 250V. It features a 24mm long x 12mm wide black plastic lever, and is UL and CSA approved.