{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF5814-2DB20","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF5814-2DB20","canonicalUrl":"https://aoctrl.com/siemens/3SF5814-2DB20","factsUrl":"https://aoctrl.com/api/mcp/products/3SF5814-2DB20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3SF5814-2DB20, Safety Interlock Switch, AS-Interface A/B slave 4I/3O, IP67, positive-opening E-stop, pull-to-unlatch, 65 x 85 x 194 mm.","salesMarkdown":"The Siemens 3SF5814-2DB20 is a safety interlock switch in an AS-Interface enclosure with standard equipment, designed for machine guarding and emergency-stop applications. It integrates an A/B slave with 4 inputs and 3 outputs over the AS-i bus, a red/yellow mushroom pushbutton actuator, and a pull-to-unlatch mechanism for E-stop reset. The metal housing carries an IP67 rating, so it handles washdown zones and dusty floors without an extra enclosure. ## Mounting and footprint The enclosure measures 65 mm deep, 85 mm wide, and 194 mm tall. Vertical fastening method, 22 mm mounting diameter for the actuator. Four command points on the front — the E-stop mushroom button, an illuminated pushbutton, a dummy plug, and a blank position. The front ring is metal, silver; the enclosure top is grey. Four labels come fitted, black on the actuator. ## Safety and compliance Positive opening is confirmed. Both EMERGENCY OFF and EMERGENCY STOP functions are present with a pull-to-unlatch mechanism.","metaTitle":"Siemens 3SF5814-2DB20 Safety Interlock Switch, AS-i Slave, IP67","metaDescription":"Siemens 3SF5814-2DB20 safety interlock switch with AS-i A/B slave 4I/3O, IP67, positive opening E-stop. Active production, sourced to order. Depth 65 mm, width 85 mm, height 194 mm","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Interlock Switches"],"specifications":{"Depth":"65 mm","Width":"85 mm","Height":"194 mm","Socket Design":"integrated LED","During Storage":"-40 ... +80 °C","of AS-i slaves":"Floor mounting","lifecycle_stage":"current","During Operation":"-25 ... +70 °C","Number Of Labels":"4","Positive Opening":"Yes","Product Function":"miscellaneous","Mounting Diameter":"22 mm","at DC rated value":"30 V","Color Of The Label":"Black","protection class IP":"IP67","Design Of The Housing":"AS-Interface enclosure with standard equipment","Number Of Lampholders":"1","number of AS-i slaves":"1","EMERGENCY OFF function":"Yes","Material Of The Holder":"Metal","Color Of The Front Ring":"silver","EMERGENCY STOP function":"Yes","Design Of The Slave Type":"A/B slave 4I/3O","Number Of Backing Plates":"0","Number Of Command Points":"4","Type Of Unlocking Device":"pull-to-unlatch mechanism","Material Of The Enclosure":"metal","Material Of The Front Ring":"metal","Number Of Switching Elements":"4","Product Component Front Ring":"Yes","Shape Of The Enclosure Front":"rectangular","Substance Prohibitance (Date)":"05/28/2009","Color Of The Actuating Element":"A = red / B = yellow","Product Component Light Source":"Yes","Color Of The Enclosure Top Part":"grey","Design Of The Actuating Element":"EMERGENCY STOP mushroom pushbutton / illuminated pushbutton switch / dummy plug / without command device","Fastening Method Of The Enclosure":"Vertical","Material Of The Actuating Element":"plastic","Shape Of The Installation Opening":"round","Product Component Protective Collar":"No","Product Extension Optional Light Source":"Yes","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":"Cable gland, 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":"3","number of NO contacts for auxiliary contacts":"3","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","Type Of Voltage Of The Supply Voltage Of The Light Source":"AC/DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF5814-2DB20/alternatives.json"},"ai":{"faq":[{"question":"What is the IP rating of the 3SF5814-2DB20?","answer":"IP67, so it is protected against dust ingress and temporary immersion in water."},{"question":"Does the 3SF5814-2DB20 have an emergency stop function?","answer":"Yes, it has both EMERGENCY OFF and EMERGENCY STOP functions with a pull-to-unlatch mechanism."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF5814-2DB20","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/3SF5814-2DB20 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}}