How many separate electric lines must be wired to lighted rocker switches?

Lighted rocker switches require two separate electric lines to function properly. One line serves as the power supply to the switch itself, while the other line is used to complete the circuit, allowing the switch to illuminate when activated. The internal circuitry of a lighted rocker switch utilizes these two lines to manage both the electrical load for the connected device and the power needed for the light indicator.

By having two lines, the switch can indicate its status (on or off) not only through its physical position, but also via the light that illuminates. This dual-line setup is essential for ensuring that the switch operates effectively and safely in a commercial kitchen or other environments where food equipment is utilized.