The Siemens 3SF3200-8GV00-0BA1 is a mechanical position switch with an integrated AS-i adapter, designed for positive-opening safety applications in industrial automation. The housing is a block-style molded-plastic enclosure per EN 50047, rated IP65 for washdown or dusty environments. Actuation is via a twist lever with a 10° to 10° switching angle, and the switching function is positive opening — meaning the NC contacts are mechanically forced open when the actuator is released, regardless of weld or spring failure. That positive-opening feature is explicitly listed as a product function, so it meets the requirements for safety-related limit switching per IEC 60947-5-1.
AS-i Connection and Contact Configuration
Electrical connection is via AS-i insulation displacement method — no screw terminals on the switch side. The AS-i adapter handles both power and communication over a two-wire flat cable, which simplifies wiring in a daisy-chain topology. The switch provides 2 NC auxiliary contacts and 0 NO contacts, so it is strictly a normally-closed pair for safety or status feedback.