Legrand S 301 D2 DX is a light switch from the company's S301 range of product lines. It is a triple pole switch that provides power to three circuits, allowing for the independent or simultaneous control of lighting and power circuits in commercial and industrial settings. The S301 D2 DX is UL and CSA listed, has a maximum current capacity of 20A, and requires a rectangular distribution box. It is also equipped with a waterproof switch cover and corrosion-resistant contacts, making it suitable for damp, humid, and wet environments.