{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF5402-1AB05","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF5402-1AB05","canonicalUrl":"https://aoctrl.com/siemens/3SF5402-1AB05","factsUrl":"https://aoctrl.com/api/mcp/products/3SF5402-1AB05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3SB3 AS-Interface F-adapter 3SF5402-1AB05, for EMERGENCY-STOP mushroom-type actuator, front plate mounting, 2 digital inputs, 1 digital output for LED control, insulation displacement connection, IP20.","salesMarkdown":"The Siemens 3SF5402-1AB05 is an AS-Interface F-adapter designed specifically for the SIRIUS 3SB3 EMERGENCY-OFF control device range. It mounts on the front of a mushroom-type emergency-stop actuator, converting the mechanical pushbutton into two AS-i safe digital inputs and one standard output for LED status indication. The connection uses the AS-i insulation displacement method, so no separate screw terminals are needed for the bus — the adapter pierces the flat cable directly. The two safety-related inputs are what make this an F-adapter — they carry the E-stop circuit's dual-channel signal onto the AS-i safety bus, meeting the redundancy required for SIL 3 / PL e applications. The single output drives the LED in the mushroom-head actuator, giving operators a clear visual that the E-stop is pressed. Front mounting — the adapter clips onto the back of the 3SB3 actuator from inside the panel, so the actuator bezel stays on the enclosure door. Dimensions are compact: 52 mm deep, 30 mm wide, 61 mm tall. The insulation displacement connection means the AS-i flat cable is pressed into the adapter's IDC slots; no stripping, no ferrule, no screwdriver. Check that your AS-i cable is the standard round-profile flat type — the IDC contacts are sized for that profile.","metaTitle":"Siemens 3SF5402-1AB05 AS-Interface F-Adapter, 2 DI / 1 DO","metaDescription":"Siemens 3SF5402-1AB05 AS-Interface F-adapter for EMERGENCY-STOP mushroom actuator. 2 digital inputs, 1 output for LED control. Front mounting, IP20. Current lifecycle stage. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Interlock Switches"],"specifications":{"Depth":"52 mm","Width":"30 mm","Height":"61 mm","Safety-Related":"2","lifecycle_stage":"current","Fastening Method":"front mounting","Product Designation":"AS-Interface F-adapter for EMERGENCY-OFF control device SIRIUS 3SB3","protection class IP":"IP20","Number Of Digital Inputs":"2","Number Of Digital Outputs":"1","Substance Prohibitance (Date)":"07/23/2009","Ambient Temperature During Operation":"-25 ... +70 °C","reference code according to IEC 81346-2":"S","Type Of Electrical Connection For Auxiliary And Control Circuit":"AS-i insulation displacement method"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF5402-1AB05/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3SF5402-1AB05?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What is the 3SF5402-1AB05 used for?","answer":"It is an AS-Interface F-adapter that mounts on the back of a SIRIUS 3SB3 emergency-stop mushroom actuator, providing two safety-rated digital inputs and one output for the actuator's LED indicator. It connects to the AS-i bus via insulation displacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF5402-1AB05","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/3SF5402-1AB05 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}}