F series Toggle switches with S800, S826 or S870 Series snap-action switches are equipped with switching elements meant exclusively for switching low currents. The snap-action switches are three-position switches, while with switching elements type S870 3 and 5, you have to do switch settings. The Series F Toggle switches have a strong, rugged design. Several switching combinations and several lever types are possible with this switch. There is sufficient protection against negligent operation. Users can lead tab seal the switches for security.