The 2TLA050007R1112 is a safety switch with guard locking from ABB/Jokab Safety, built in a plastic housing with an NPT connector and a standard key profile. It runs on 24 V AC, which is the standard control voltage for safety circuits in most industrial panels — no step-down transformer needed if your safety chain is already at 24 V.
The plastic housing and NPT connector make this switch suited for washdown or mildly corrosive environments where a metal enclosure would rust. Mount it on the guard frame with the standard key aligned to the actuator; the 24 V AC coil holds the lock when energized, releasing only when the safety circuit de-energizes.