The Crouzet Control 831810CFD0.BL is a sealed subminiature switch conforming to DIN 41635 B standards. It's constructed with a UL 94VO glass-filled polyester case, polyester button, silicon membrane, AgCdO/AgNi contacts (dual current), tinned brass terminals, and PVC-insulated leads. The switch is designed for use in applications requiring protection from dust and moisture, making it ideal for industrial control panels, automotive systems, and other demanding environments. It offers both symmetric and asymmetric mounting options and is available with various actuator types and connection options. Care should be taken to use the switch for either dual-current or medium-current circuits during its operational life.