For which application are "T"-rated snap switches primarily intended?

" T"-rated snap switches are primarily intended for incandescent lighting applications. The "T" designation indicates that the switch is suitable for handling the heat generated by incandescent bulbs, which can produce high temperatures as they operate. This rating ensures that the components of the switch can withstand the thermal and electrical demands of such lighting without risk of failure or safety hazards.

In contrast, other applications such as heating systems, outdoor lighting, and commercial signage may involve different requirements for switches, such as higher tolerance to moisture or specific voltage ratings. These factors are crucial in determining the appropriate type of switch for safe and efficient operation in those applications, but they do not align with the specific thermal management needs that "T"-rated snap switches are designed to address. Thus, the focus on incandescent lighting makes this classification essential for ensuring reliable performance.