{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF5811-2AB10","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF5811-2AB10","canonicalUrl":"https://aoctrl.com/siemens/3SF5811-2AB10","factsUrl":"https://aoctrl.com/api/mcp/products/3SF5811-2AB10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3SF5811-2AB10, AS-Interface emergency-stop pushbutton, 22 mm mounting, IP67, 1 AS-i slave (F slave, 2I), rotate-to-unlatch, metal enclosure, current lifecycle stage.","salesMarkdown":"The Siemens 3SF5811-2AB10 is an AS-Interface emergency-stop pushbutton in a square metal enclosure with a red mushroom actuator and yellow top. It carries one AS-i slave configured as an F slave with two inputs (2I), meaning it reports its status directly over the AS-i bus without a separate safety relay — the safety controller reads the E-stop state through the AS-i network. Rated IP67, so the housing and the actuator seal against dust and temporary immersion — suitable for washdown zones on packaging lines or outdoor conveyor transfer stations. The 22 mm mounting diameter fits standard panel cutouts, and the enclosure fastens vertically or horizontally. The rotate-to-unlatch mechanism means the operator twists the mushroom head to reset after a stop; positive opening is confirmed, so the NC contacts physically break even if welded — this is the mechanical safety feature that meets IEC 60947-5-1 requirements for emergency-stop devices. ## Integration notes The AS-i slave type is F slave, 2I — this is a safety slave that communicates via the AS-i safety protocol. It requires a safety monitor on the AS-i network to interpret the F-slave data. The pre-wired strip terminal simplifies field wiring: no separate connector needed, just strip and clamp. The metal enclosure and holder give it mechanical robustness for heavy-use environments like machine tools or material handling. This covers most indoor industrial environments and unheated storage conditions.","metaTitle":"Siemens 3SF5811-2AB10 AS-i Emergency Stop, IP67, 22mm","metaDescription":"Siemens 3SF5811-2AB10 AS-Interface emergency stop pushbutton, IP67, 22mm mounting, rotate-to-unlatch, current production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Interlock Switches"],"specifications":{"Depth":"114 mm","Width":"85 mm","Height":"85 mm","During Storage":"-40 ... +80 °C","of AS-i slaves":"Floor mounting","lifecycle_stage":"current","During Operation":"-25 ... +70 °C","Number Of Labels":"0","Positive Opening":"Yes","Product Function":"EMERGENCY-STOP","Mounting Diameter":"22 mm","at DC rated value":"30 V","protection class IP":"IP67","Design Of The Housing":"AS-Interface enclosure with standard equipment","Number Of Lampholders":"0","number of AS-i slaves":"1","EMERGENCY OFF function":"Yes","Material Of The Holder":"Metal","EMERGENCY STOP function":"Yes","Design Of The Slave Type":"F slave, 2I","Number Of Backing Plates":"0","Number Of Command Points":"1","Type Of Unlocking Device":"rotate-to-unlatch mechanism","Material Of The Enclosure":"metal","Number Of Switching Elements":"2","Product Component Front Ring":"No","Shape Of The Enclosure Front":"Square","Substance Prohibitance (Date)":"07/01/2006","Color Of The Actuating Element":"red","Product Component Light Source":"No","Color Of The Enclosure Top Part":"yellow","Design Of The Actuating Element":"EMERGENCY STOP mushroom pushbutton","Fastening Method Of The Enclosure":"Vertical / horizontal","Material Of The Actuating Element":"plastic","Shape Of The Installation Opening":"round","Product Component Protective Collar":"Yes","Product Extension Optional Light Source":"No","reference code according to IEC 81346-2":"S","Type Of Voltage Of The Operating Voltage":"DC","Delivery State Pre-Wired On Strip Terminal":"Yes","Of Contact Blocks, Socket, And Accessories":"Floor mounting","Type Of Electrical Connection On Enclosure":"M12 connector, 4-pole, top","with low demand rate according to SN 31920":"20 %","with high demand rate according to SN 31920":"20 %","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"0","Tightening Torque Of The Screws In The Bracket":"1.4 ... 1.6 N·m","vibration resistance according to IEC 60068-2-6":"20 ... 200 Hz: 5g"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF5811-2AB10/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of 3SF5811-2AB10?","answer":"Width 85 mm, height 85 mm, depth 114 mm. Mounting diameter is 22 mm. The enclosure fastens vertically or horizontally."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF5811-2AB10","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/3SF5811-2AB10 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}}