{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF1324-1SD21-1BA4","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF1324-1SD21-1BA4","canonicalUrl":"https://aoctrl.com/siemens/3SF1324-1SD21-1BA4","factsUrl":"https://aoctrl.com/api/mcp/products/3SF1324-1SD21-1BA4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, safety position switch with tumbler, 3SF1324-1SD21-1BA4, locking force 1 300 N, IP66/IP67, ASIsafe integrated, M12 plug.","salesMarkdown":"## Safety position switch with tumbler — ASIsafe integrated The Siemens SIRIUS 3SF1324-1SD21-1BA4 is a safety position switch with a tumbler mechanism, designed for guard-door monitoring on machinery where a positive-opening, spring-locked actuator is required. It integrates ASIsafe on a fixed M12 plug, so the safety signals (actuator 2 NC, magnet 1 NC) run directly on the AS-Interface bus without a separate safety relay module — saves a DIN-rail slot and a wiring step. Locking force is rated at 1 300 N, which means the switch holds the guard closed against a substantial pull — think heavy hinged doors on a press or a robot cell where an operator leaning on the door shouldn't defeat the interlock. Repeat accuracy is 0.1 mm, so the switch position is consistent cycle after cycle, critical for maintaining the safety distance to the hazard. The enclosure is IP66/IP67 rated, plastic housing, screw fixing, and the actuator can be approached from any of 5 directions — gives flexibility in mounting orientation on the guard frame. The separate actuator (order 3SE5000-0AV0) is not included, so make sure that's on the BOM alongside this switch. ## Deployment context Mounts in any position (screw fixing) on the machine frame or guard door. The M12 plug (4-pole, pinout: 1 = ASI+, 3 = ASI-) carries both power and AS-Interface communication, so the switch is a single-cable device on the AS-i bus. The ID1 code is set to F by default, configurable 0...F via the AS-i master or a programming tool. Mechanical service life is typical 1 000 000 operating cycles — a fast mover for high-cycle applications. Shock resistance 30g / 11 ms, vibration 0.35 mm / 5g per IEC 60068-2-6 and -27. Pollution degree 3 (industrial environment with conductive or dry non-conductive pollution). Insulation rated at 30 V, surge withstand 0.8 kV — suitable for the 24 V AS-Interface bus.","metaTitle":"Siemens SIRIUS 3SF1324-1SD21-1BA4 Safety Switch, 1 300 N Loc","metaDescription":"Siemens SIRIUS 3SF1324-1SD21-1BA4 safety position switch with tumbler. 1 300 N locking force, IP66/IP67, ASIsafe integrated. Current production. Quoted to order.","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","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/3SF1324-1SD21-1BA4/alternatives.json"},"ai":{"faq":[{"question":"What is the locking force of 3SF1324-1SD21-1BA4?","answer":"The locking force is rated at 1 300 N, which means the switch holds the guard closed against a substantial pull — suitable for heavy hinged doors on presses or robot cells."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF1324-1SD21-1BA4","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/3SF1324-1SD21-1BA4 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}}