What the housing actually is
The Siemens SIRIUS 3SE5112-0CH60 is a mechanical position switch with a snap-action contact and positive-opening switching function, built around the 3SE5112-0CA00 basic switch and shipped with the 3SE5000-0AA60 adjustable roller lever — a metal lever with latching and a 19 mm plastic roller that can be re-oriented in the field to suit the cam approach. The enclosure is a narrow block of metal finished with cathodic dip coating, sized 40 mm wide by 192 mm long, with screw fixing and any mounting orientation permitted — the housing carries IP66/IP67 sealing so the switch holds up under hosed-down and temporary immersion in industrial environments.
Reading the electrical ratings
Thermal current is 10 A — that is the upper bound the contacts can carry continuously, derated by the rated voltage and load type on top of it. Switching action is snap-action on mechanical contacts with repeat accuracy stated at 0.05 mm — the contact opens or closes on a fixed travel irrespective of actuator speed, so the same trip point holds trip after trip; the positive-opening switching function guarantees the NC contact mechanically breaks when the actuator reaches the end position, which is what makes the switch suitable as a safety interlock on guard doors.
Lifecycle and stocking posture
Substance prohibition compliance is dated 07/01/2006, confirming the part is built against the post-RoHS material set; the SIRIUS 3SE5 position-switch family is the series on which this order code sits, and the actuator head follows EN 50041 design A so it interoperates with the standard complement of SIRIUS actuators rather than needing a custom lever.