What must be included when installing different voltage switches in the same box?

When installing different voltage switches in the same box, it is essential to include a separation plate to ensure safety and prevent electrical hazards. The separation plate acts as a barrier that keeps the circuits for each voltage level isolated from one another. This isolation is crucial because mixing different voltage levels without adequate separation can lead to unintended short circuits, potential equipment damage, or electric shock hazards.

By using a separation plate, it allows each switch to operate independently, minimizing the risk of electrical interference or accidental contact between circuits of different voltage levels. This practice adheres to safety codes and regulations, which emphasize the importance of maintaining proper separation in electrical installations to protect both users and equipment.

While grounding wires, fuses, and resistors may play important roles in various electrical systems, they do not specifically address the requirement of physical separation needed when handling multiple voltages within the same enclosure. Thus, the inclusion of a separation plate is the correct and necessary requirement for this particular scenario.