What this part is and where it fits
The Siemens 3SF3200-8EV00-0BA1 is a mechanical position switch with an integrated AS-i bus adapter, built into a block-style housing per EN 50047 design E. The molded-plastic enclosure carries an IP65 rating, so the switch body and the AS-i connection point withstand washdown and dust ingress on a conveyor line or packaging machine. The switching function is positive opening — the NC contacts are mechanically forced open when the roller lever is actuated, regardless of weld or spring failure. This meets the safety-circuit requirement for a positively driven NC contact per IEC 60947-5-1, making it suitable for guard-door interlocking or end-of-travel limit positions where a fail-safe signal is mandatory. The actuator is a roller lever, and the actuator head follows EN 50047 design E — a standard 31 mm wide block that mounts via screw fixing. The AS-i connection uses the insulation displacement method, so the bus drop is made by pressing the flat cable into the slot; no separate bus coupler or terminal block is needed at the switch.
Contact configuration and switching behaviour
The auxiliary contact block provides 2 NC contacts and 0 NO contacts. For a safety circuit that needs two-channel feedback from a single actuator position — e.g., one NC to the safety relay and one NC to the PLC input — this switch delivers it without an add-on contact block. The snap-action mechanism gives a defined switching point and contact speed independent of the actuation speed, which avoids chattering on slow-moving cams or worn rollers.
Environmental range and deployment context
Rated for ambient temperatures from -25 °C to +60 °C during operation. That covers most indoor industrial environments and refrigerated areas down to freezer-entry zones. The IP65 rating means the switch body and the AS-i connection point resist hose-directed water and dust ingress — suitable for washdown areas in food processing or wet machining lines.
Sourcing and lifecycle
The lifecycle stage is listed as current, meaning the manufacturer continues to produce this order code. It is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.