What is the requirement for the mounting strap of a snap switch when part of a listed kit?

The requirement for the mounting strap of a snap switch, when it is part of a listed kit, is that it does not need to be grounded. This is primarily because the snap switch is designed to be a complete assembly with its own grounding provisions already included in the kit. The components of a listed kit are designed to work together and achieve the necessary safety standards, ensuring that proper grounding is already addressed within the kit’s specific design.

In this context, while grounding is essential for safety in electrical installations, the listed kit's design ensures that the necessary grounding features are integrated effectively without the need for additional grounding of the mounting strap itself. This makes it less complex for installation and helps reduce the risk of improper grounding connections that could occur if additional requirements were imposed on components like the mounting strap.