The Carling Technologies R135-A-BL rotary switch is designed for controlling lighting functions in appliances, HVAC systems, and other applications requiring a single-pole, single-throw switching action. This switch offers a 3A 125VAC rating and features an OFF-ON repeating action, providing reliable and consistent performance. It is equipped with black wire leads for easy integration and a nylon actuating knob for user-friendly operation. The switch's robust construction and reliable performance make it a suitable choice for a wide range of industrial and commercial applications.