{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF1324-1SD21-1BK4","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF1324-1SD21-1BK4","canonicalUrl":"https://aoctrl.com/siemens/3SF1324-1SD21-1BK4","factsUrl":"https://aoctrl.com/api/mcp/products/3SF1324-1SD21-1BK4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3SF1324-1SD21-1BK4 mechanical safety switch, tumbler locking force 1300 N, 5 approach directions, plastic enclosure, M12 plug, IP66/IP67/IP69, ASIsafe integrated.","salesMarkdown":"The Siemens SIRIUS 3SF1324-1SD21-1BK4 is a safety position switch with a tumbler locking force of 1 300 N — that's the force holding the guard closed against a determined push, not just a light detent. It's built for environments where washdowns are daily: IP66, IP67, and IP69 rated, so hot water and chemical sprays at high pressure won't get inside the plastic enclosure. The M12 plug carries ASIsafe communication, and the switch gives you five directions of actuator approach, which simplifies mounting alignment on a guard door or hatch. Mounting position is any orientation, fixed with screws through the plastic housing. The M12 plug is fixed — pin 1 is ASI+, pin 3 is ASI-, and pins 2 and 4 are unassigned. The switch uses positive-opening contacts (2 NC for the actuator channel, 1 NC for the magnet channel per the 2v2 evaluation principle), so it meets the safety circuit requirements for a Category 4 or SIL 3 application when wired correctly. Repeat accuracy is 0.1 mm, which keeps the guard position consistent cycle after cycle over the rated 1 000 000 mechanical operations.","metaTitle":"Siemens 3SF1324-1SD21-1BK4 SIRIUS Safety Switch, 1300 N Lock","metaDescription":"Siemens SIRIUS 3SF1324-1SD21-1BK4 safety position switch with tumbler locking force 1300 N, IP69, ASIsafe, M12 plug. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Safety Interlock Switches"],"specifications":{"ID1 code":"F (default); 0...F","Locking Force":"1 300 N","During Storage":"-40 ... +80 °C","Repeat Accuracy":"0.1 mm","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","Shock Resistance":"30g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Degree Of Pollution":"class 3","Product Designation":"Mechanical safety switches","protection class IP":"IP66, IP67, IP69","Vibration Resistance":"0.35 mm / 5g","Design Of The Housing":"special design","Design Of The Product":"with separate actuator and with tumbler","Design Of The Interface":"M12 plug, fixed","Material Of The Enclosure":"plastic","according to EN ISO 14119":"1 000 N","AS-Interface slave profile":"7.B.F","according to IEC 60068-2-6":"0.35 mm/5g","according to IEC 60068-2-27":"30g / 11 ms","Design Of Plug-In Connection":"M12 plug, 4-pole: Pin 1 = ASI+ , Pin 2 = not assigned, Pin 3= ASI-, Pin 4 = not assigned","Substance Prohibitance (Date)":"03/01/2017","Supply Voltage Of Magnet Coil":"24 V","Type Of Electrical Connection":"M12 plug, fixed","Insulation Voltage Rated Value":"30 V","Design Of The Actuating Element":"5 directions of approach","Design Of The Switching Function":"positive opening","Number Of Directions Of Actuation":"5","Product Function Positive Opening":"Yes","Suitability For Use Safety Switch":"Yes","Surge Voltage Resistance Rated Value":"0.8 kV","reference code according to IEC 81346-2":"B","Design Of The Housing According To Standard":"No","Material Of The Enclosure Of The Switch Head":"plastic","Mechanical Service Life (Operating Cycles) Typical":"1 000 000","Minimum Actuating Force In Directions Of Actuation":"30 N"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SF1324-1SD21-1BK4/alternatives.json"},"ai":{"faq":[{"question":"What is the locking force of 3SF1324-1SD21-1BK4?","answer":"The tumbler locking force is 1 300 N, which is the force required to defeat the lock mechanism when the guard is closed and the solenoid is energized."},{"question":"What IP rating does this safety switch carry?","answer":"It carries IP66, IP67, and IP69 protection, so it handles high-pressure washdown, temporary immersion, and hot water spray — typical for food, beverage, or pharmaceutical lines."},{"question":"Where can I buy 3SF1324-1SD21-1BK4?","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/3SF1324-1SD21-1BK4","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/3SF1324-1SD21-1BK4 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}}