A switch box mechanism of an enclosed switch assembly. The switch box mechanism includes a swivel catch having an elongated body, a pivot configured to allow the swivel catch to rotate relative to an enclosure, and a catch end including a catch configured to engage with an enclosure lid, and a slide feature formed in the elongated body, a rod configured to couple to a switch engagement member that is configured to engage with a rotor of a line base assembly, the rod having a slide portion slidably engaged with the slide feature, and a spring configured to bias the swivel catch. Enclosed switch assemblies and switch subassemblies including the switch box mechanism, and methods of operating enclosed switch assemblies are disclosed, as are other aspects.