The Telemecanique Sensors XCKJ10541H29 is a limit switch in the XCKJ series, fitted with a roller lever actuator and a roller lever plunger style. The maximum operating torque is 2.21 in-lb — that's the force needed to trip the switch, so it's a standard-duty mechanical limit for position sensing on moving parts like conveyor stops or machine guards.
The roller lever actuator gives a positive mechanical snap-action when the lever is deflected by a cam or moving part. The roller reduces friction wear on the actuator tip, which is useful for high-cycle applications like packaging machinery or material handling lines.