The Siemens 3SF3210-1EV00-0BA2 is a communication-capable position switch with an integrated AS-i adapter, designed for direct connection to an AS-interface network via insulation displacement method. It carries a single NC contact with positive opening operation — meaning the NC breaks mechanically, independent of spring force, when the roller lever is actuated. That positive opening is the feature that makes it suitable for safety-related limit switching in guarding applications.
The block housing conforms to EN 50047, a standard 50 mm wide footprint that drops into the same cutout as other EN 50047 limit switches; screw fixing secures it to the machine frame or bracket. The roller lever actuator suits cam-operated or slide-gate positions where the actuator needs to track a moving surface.