The Siemens 3SF3200-8FV00-0BA1 is a mechanical position switch with an integrated AS-i (Actuator-Sensor Interface) adapter, built for direct connection to an AS-i bus without a separate I/O block. It carries two normally-closed (NC) contacts with snap-action and positive-opening operation — meaning the NC contacts are mechanically forced open when the actuator is tripped, regardless of weld or spring failure. That positive-opening feature is the key safety credential: it meets the forced-break requirement for interlocking guards and safety circuits per IEC 60947-5-1.
The block housing conforms to EN 50047, a standard 31 mm wide footprint that fits common limit-switch mounting patterns. Screw fixing secures it to the machine frame or bracket. The angular roller lever suits cam-actuated positions on linear slides, rotary tables, or door edges — the roller follows the cam profile and resets the switch when the cam passes.