The Eaton M22WRS3MS1A1 is a genuine Eaton M22 series 3-position key-operated selector switch, designed for robust industrial control applications. This switch features a 1 Normally Open (N/O) contact configuration and offers both momentary and maintained action. The key is removable in all three positions (I, II, III), providing versatile control options. With a standard 22.5 mm mounting diameter and an IP66 rating, it ensures reliable performance and protection against dust and strong water jets, making it suitable for demanding environments. It has a contact rating of 10A at 500V AC and operates within a temperature range of -25°C to 70°C.