{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SF1324-1SG21-1BA4","brand":"Siemens","brandSlug":"siemens","productSlug":"3SF1324-1SG21-1BA4","canonicalUrl":"https://aoctrl.com/siemens/3SF1324-1SG21-1BA4","factsUrl":"https://aoctrl.com/api/mcp/products/3SF1324-1SG21-1BA4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3SF1324-1SG21-1BA4 mechanical safety switch, spring-locked with escape release, 1300 N locking force, IP65/IP67, M12 plug, ASIsafe integrated.","salesMarkdown":"## Safety switch with tumbler locking and ASIsafe integration The Siemens SIRIUS 3SF1324-1SG21-1BA4 is a mechanical safety switch with a tumbler locking mechanism rated at 1300 N locking force, designed for guard-door monitoring in safety circuits up to PL d / SIL 3 when wired per the 2v2 evaluation principle. The spring-actuated lock follows the closed-circuit principle — power to the magnet holds the lock open; spring force closes it on power loss, so a fault or cable break puts the guard in the safe state. Escape release from the rear and auxiliary release from the front let an operator open the guard from inside or a technician override it without tools. ## AS-Interface integration and wiring The switch integrates directly onto an AS-Interface safety network via the fixed M12 plug. Pinout is standard: Pin 1 = ASI+, Pin 3 = ASI-. The AS-Interface slave profile is 7.B.F, which the safety monitor recognizes for the dual-channel evaluation. Channel 1 monitors the actuator (2 NC contacts per the positive-opening principle), and channel 2 monitors the magnet (1 NC contact) — this gives the safety PLC or ASI monitor two independent feedback paths so a single fault does not defeat the safety function. The ID1 code is set to F by default, configurable 0...F for addressing on multi-switch lines. ## Deployment context Mounts in any position via screw fixing to the machine frame or guard-door profile. The plastic housing with special design and 5 directions of approach give flexibility for tight spaces. Vibration resistance to 0.35 mm / 5g and shock resistance to 30g / 11 ms mean it holds up on press brakes, punch presses, and conveyor transfer stations without nuisance trips.","metaTitle":"Siemens 3SF1324-1SG21-1BA4 SIRIUS Safety Switch, 1300 N Lock","metaDescription":"Siemens SIRIUS 3SF1324-1SG21-1BA4 mechanical safety switch with 1300 N locking force, IP65/IP67, M12 AS-Interface. Current lifecycle. 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":"IP65/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","Locking Mechanism Design":"spring-actuated lock (closed-circuit principle) with escape release from the back and auxiliary release from the front","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 (Switching 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/3SF1324-1SG21-1BA4/alternatives.json"},"ai":{"faq":[{"question":"What IP rating does this safety switch have?","answer":"IP65/IP67 — dust-tight, protected against water jets and temporary immersion, suitable for washdown environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SF1324-1SG21-1BA4","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/3SF1324-1SG21-1BA4 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}}