{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF3243-0XX00-0BA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF3243-0XX00-0BA1","canonicalUrl":"https://aoctrl.com/siemens/3SF3243-0XX00-0BA1","factsUrl":"https://aoctrl.com/api/mcp/products/3SF3243-0XX00-0BA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3SF3243-0XX00-0BA1, communication-capable position switch, AS-i adapter, block housing EN 50047, IP65, 2NC, positive opening, screw fixing, molded-plastic.","salesMarkdown":"The Siemens 3SF3243-0XX00-0BA1 is a communication-capable position switch with an integrated AS-i adapter, designed to report two normally-closed (NC) contacts directly onto an AS-i bus without a separate I/O block. The switching function is positive opening, meaning the NC contacts are mechanically forced open when the actuator is displaced — a requirement for safety circuits where a welded contact must not mask a stop signal. The housing is a molded-plastic block per EN 50047, fastened by screw fixing. The AS-i insulation displacement connection means the switch pierces the AS-i flat cable directly — no separate tapping or screw terminals for the bus. That saves a junction point in the cable run and keeps the IP65 seal intact. The separate actuator allows the switch body to be mounted on a fixed frame while the actuator rides on the guard door or sliding gate, which is the typical layout on a machine guard interlock.","metaTitle":"Siemens 3SF3243-0XX00-0BA1 AS-i Position Switch, IP65, 2NC","metaDescription":"Siemens 3SF3243-0XX00-0BA1 communication-capable position switch with AS-i adapter, IP65, 2NC, positive opening, EN 50047 block housing. Current lifecycle stage. Quoted to order ag","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 50047","Material Of The Enclosure":"molded-plastic","Type Of Electrical Connection":"AS-i insulation displacement method","Design Of The Actuating Element":"separate actuator","Design Of The Switching Function":"positive opening","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/3SF3243-0XX00-0BA1/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 actuator is displaced, regardless of whether the contacts have welded. This is a safety-circuit requirement per IEC 60947-5-1."},{"question":"How does the AS-i connection work on this switch?","answer":"The switch uses an AS-i insulation displacement method — the flat cable is pressed onto piercing contacts inside the adapter. No separate bus tap or screw terminals are needed for the AS-i connection."},{"question":"Where can I buy 3SF3243-0XX00-0BA1?","answer":"This part is sourced and quoted to order against an RFQ through independent 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/3SF3243-0XX00-0BA1","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/3SF3243-0XX00-0BA1 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}}