the TWND series of 30mm switches is a complete line of non-illuminated and illuminated pushbuttons, non-illuminated and illuminated selector switches, key selector switches, pilot lights and E-stops. This heavy-duty switch is designed to be used in harsh industrial environments including automotive, food and beverage, metal working, textile machinery, papermill, packaging machinery, farm and agriculture equipment, transportation and more. Users can rely on TWND switches to endure and last even in the toughest and most extreme environments, as these switches meet the highest standards for UL, TUV, CSA, CCC, and are also CE marked