Sci a3 20 series pull switches 30a sci a3 20a sq a 3 position pull switch with fuse protection ideal for automotive applications with 1 off position pushed fully in and 2 on positions out 1 notch and fully out the switch is ideal for dipped beam main beam headlights and 2 speed windscreen wipers sci a3 20a sq pull switch with fuse protection 30a 4p off on on