SMC's hygienic auto switches were designed to work in areas where the cylinder surface is washed. Rail mounting allows a freely adjustable mounting position, including intermediate positions. These switches are designed with as many curves as possible and no recessed areas leaving extremely small amounts of residual cleaning solvent. D-F6 auto switches have a stainless steel
/A8, D-A7H/A80H, D-A73C, A80C, D-C7/C8, D-C73C/C80C, D-E7A, E80A, D-Z7/Z8, D-9/9A, D-A9/A9V, D-A79W The auto switches above do not have a built-in contact protection circuit.