{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF3120-8DV00-0BA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF3120-8DV00-0BA1","canonicalUrl":"https://aoctrl.com/siemens/3SF3120-8DV00-0BA1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF3120-8DV00-0BA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3SF3120-8DV00-0BA1 communication-capable position switch, AS-i adapter, metal block housing EN 50041, roller plunger, positive opening, 2 NC, IP65.","salesMarkdown":"## Communication-capable position switch with AS-i The Siemens 3SF3120-8DV00-0BA1 is a communication-capable position switch with an integrated AS-i adapter, designed for direct connection to an AS-interface network without a separate I/O module. The AS-i insulation displacement method lets you tap the flat cable anywhere along the line — no stripping, no screw terminals, just punch down and go. That drops wiring time per position switch to under a minute on a conveyor zone or transfer station. The switching function is positive opening, meaning the NC contacts are mechanically forced open when the actuator is depressed — even if the contacts weld shut. That's the requirement for safety-related stop circuits per IEC 60947-5-1. The roller plunger actuator follows EN 50041 design C, so it mates with standard cam tracks on transfer decks, diverters, and lift gates. The metal block housing carries an IP65 rating, so it handles washdown spray and dust on packaging lines or outdoor conveyor sections. The painted metal enclosure resists corrosion better than the plastic variants in the same family. ## Contact configuration and panel integration The switch provides 2 NC contacts and 0 NO contacts for auxiliary contacts. That's a dedicated safety pair — both NC channels can be wired in series for a dual-channel stop circuit to a safety PLC or safety relay. No NO for status feedback, so if you need a position-confirm signal back to the controller, plan on a separate sensor or a feedback loop through the AS-i bus. The block housing follows EN 50041, 40 mm wide, with screw fixing — mounts directly on machine frames or conveyor stands without adapter plates.","metaTitle":"Siemens 3SF3120-8DV00-0BA1 AS-i Position Switch, IP65, Posit","metaDescription":"Siemens 3SF3120-8DV00-0BA1 communication-capable position switch with AS-i adapter, IP65 metal housing, positive opening, roller plunger. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Interlock Switches"],"specifications":{"lifecycle_stage":"current","Active Principle":"mechanical","Fastening Method":"screw fixing","Product Designation":"communication-capable position switch","protection class IP":"IP65","Design Of The Housing":"block, EN 50041","Coating Of The Enclosure":"painted","Material Of The Enclosure":"metal","Type Of Electrical Connection":"AS-i insulation displacement method","Design Of The Actuating Element":"roller plunger","Design Of The Switching Function":"positive opening","Standard-Compliant Actuator Head":"EN 50041, design C","Product Function Positive Opening":"Yes","Ambient Temperature During Operation":"-25 ... +60 °C","reference code according to IEC 81346-2":"B","Design Of The Housing According To Standard":"Yes","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF3120-8DV00-0BA1/alternatives.json"},"ai":{"faq":[{"question":"What does positive opening mean on this switch?","answer":"Positive opening means the NC contacts are mechanically forced open when the roller plunger is depressed, regardless of contact welding. This is required for safety stop circuits per IEC 60947-5-1."},{"question":"How does the AS-i connection work on this position switch?","answer":"The AS-i insulation displacement method lets you connect the switch directly to the AS-i flat cable by punching down through the insulation — no stripping, no screw terminals. It taps the bus anywhere along the cable run."},{"question":"Where can I buy 3SF3120-8DV00-0BA1?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF3120-8DV00-0BA1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3SF3120-8DV00-0BA1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}