{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF3120-6GW00-0BA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF3120-6GW00-0BA1","canonicalUrl":"https://aoctrl.com/siemens/3SF3120-6GW00-0BA1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF3120-6GW00-0BA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3SF3120-6GW00-0BA1 communication-capable position switch, AS-i interface, metal block housing EN 50041, IP65, 2 NC contacts, positive opening, twist lever actuator.","salesMarkdown":"The Siemens 3SF3120-6GW00-0BA1 is a communication-capable position switch with an integrated AS-i (Actuator-Sensor Interface) adapter, designed for direct connection to an AS-i network without a separate interface module. It uses a mechanical active principle with a twist lever actuator and a positive opening switching function — meaning the NC contacts are mechanically forced open when the actuator is released, regardless of weld or spring failure, which is the safety-relevant requirement for guard door monitoring per IEC 60947-5-1. The housing is a metal block design conforming to EN 50041, painted, with screw fixing. It carries 2 NC contacts and 0 NO contacts, so it is a normally-closed-only configuration — typical for safety circuits where the switch interrupts the safety chain on door opening and relies on redundancy through two NC channels. ## IP65 and deployment context Connection is via AS-i insulation displacement method — the flat cable pierces into the AS-i bus without stripping or separate terminals, which speeds installation on long bus runs. The twist lever actuator (design A per EN 50041) gives a defined roller-crank motion; the 10° to 10° grd (ground) angle in the description suggests a slow-action roller crank that actuates over a small angular travel, suitable for cam-operated guard positions.","metaTitle":"Siemens 3SF3120-6GW00-0BA1 Position Switch, AS-i, IP65, 2NC","metaDescription":"Siemens 3SF3120-6GW00-0BA1 communication-capable position switch with AS-i adapter, IP65 metal housing, 2 NC contacts, positive opening, twist lever. Current lifecycle stage, avail","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":"twist lever","Design Of The Switching Function":"positive opening","Standard-Compliant Actuator Head":"EN 50041, design A","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/3SF3120-6GW00-0BA1/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3SF3120-6GW00-0BA1?","answer":"It is a mechanical position switch with IP65 metal enclosure, 2 NC contacts with positive opening, AS-i communication via insulation displacement connection, twist lever actuator, and operating temperature range -25 to +60 °C."},{"question":"Where can I buy the 3SF3120-6GW00-0BA1?","answer":"This part is available to order against an RFQ through our independent distribution channel. Submit a request for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF3120-6GW00-0BA1","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/3SF3120-6GW00-0BA1 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}}