KSL Series IP67 Sealed Tact Switches C&K Switches KSL Series IP67 Sealed Tact Switches are designed for automatic or manual insertion with SPST-NO. The top or side-actuated switches feature cambered terminals to ensure self-retention. The C&K Switches KSL Series Sealed Tact Switches are available in a variety of cap colors and are RoHS compliant and compatible. Typical applications include automotive, industrial, and telecommunication networks.