The STNK series of safety interlock and safety door switches is a line of specially designed safety switches for machine door and guard applications. This tongue or key operated safety interlock switch is cUL508 Listed, available with positive opening NC contacts and carries an IP67, NEMA 4, 4X, 6 and 6P protection rating.Customer wiring to this safety interlock switch is simplified due to the removable contact blocks. The head of this safety door switch can be mounted in 4 directions and the key or tongue can be inserted into the safety switch in 5 directions including downwards.There are 3 different keys available for each tongue interlock switch and the customer has several options for the type of contacts including both slow action and snap action. Applications for the STNK series include safety gate switch, door interlock switch, guard safety switch and as a panel door safety switch.The housing of these mechanical safety interlock switches are double insulated avoiding the need for additional ground connections. To ensure the ingress protection rating the STNK safety interlock switch accepts M16 cable glands as a standard with M20, NPT, PG and M12 connectors as an option.
The STNK01 Series of safety interlock switch and safety door switch models with a right angle key are safety switches for machine and equipment applications that require a robust safety limit switch. The STNK01 safety interlock switch can be ordered with different contact types including 1NC/1NO slow action or 1NC/1NO snap action and other contact arrangements available upon request.