The Eaton M22S-DDL-GR is a heavy-duty, NEMA 4 rated, watertight, illuminated selector switch. It utilizes a 30mm diameter knob to enable a user to select between the ON and OFF positions. This selector switch is made from a highly chemical and temperature resistant plastic, making it ideal for use in harsh environments and chemical process areas. The illuminated knob allows for enhanced visibility in dark locations, making it easier to detect and confirm the current switch position. The M22S-DDL-GR is also IP66 rated, meaning it is designed to keep out dirt, dust, and moisture, protecting the internal components from damage.