{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SK1111-2AB30","brand":"Siemens","brandSlug":"siemens","productSlug":"3SK1111-2AB30","canonicalUrl":"https://aoctrl.com/siemens/3SK1111-2AB30","factsUrl":"https://aoctrl.com/api/mcp/products/3SK1111-2AB30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS safety relay, 3SK1111-2AB30, SIL 3 (IEC 61508, IEC 62061), 22.5 mm width, screw and snap-on mounting, 24 V rated, 12 A total current max.","salesMarkdown":"The Siemens 3SK1111-2AB30 is a SIRIUS safety relay designed for enabling circuits in safety-related applications. It's rated SIL 3 according to IEC 61508 and IEC 62061, which means it's suitable for safety functions up to that integrity level — think emergency stops, guard door monitoring, or two-hand control circuits where you need a certified fail-safe path. It has a start input and a feedback input, so you can wire it for monitored manual start or automatic restart depending on the risk assessment. The relay handles a total current maximum of 12 A and operates on a 24 V rated supply with a tolerance of 0.85 to 1.2 times nominal at DC. At 22.5 mm wide and 100 mm tall, with a depth of 121.6 mm, this relay fits a standard DIN-rail enclosure. Fastening is by screw and snap-on mounting — so it clips onto the rail and can be screwed down for vibration resistance. Mounting position is any, which helps when you're packing a dense panel. Wire termination accepts solid or stranded conductors: 1x (20...16 AWG) or 2x (20...16 AWG). With core end processing (ferrules), it takes 1x (0.5...1.0 mm²) or 2x (0.5...1.0 mm²). That covers most control wiring in a standard panel. EMC emitted interference complies with IEC 60947-5-1 and IEC 61000. Power loss is 2 W maximum, which is modest for a safety relay of this class. Typical response time is 65 ms, maximum 75 ms at DC; at AC the maximum is 320 ms. That 320 ms figure matters if you're calculating stop distances for a guard door — account for it in your safety distance formula.","metaTitle":"Siemens 3SK1111-2AB30 SIRIUS Safety Relay, SIL 3, 22.5 mm","metaDescription":"Siemens 3SK1111-2AB30 SIRIUS safety relay, SIL 3 per IEC 61508/62061. 22.5 mm wide, screw/snap-on mounting. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Safety Relays"],"specifications":{"Depth":"121.6 mm","Solid":"1x (20 ... 16), 2x (20 ... 16)","Width":"22.5 mm","at DC":"0.85 ... 1.2","Height":"100 mm","Maximum":"75 ms","Typical":"65 ms","at 24 V":"1 A","Stranded":"1x (20 ... 16), 2x (20 ... 16)","at 115 V":"1.5 A","at 230 V":"1.5 A","at 50 Hz":"0.85 ... 1.1","at 60 Hz":"0.85 ... 1.1","Rated Value":"24 V","Start Input":"Yes","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Safety Switch":"Yes","at AC maximum":"320 ms","at DC maximum":"320 ms","During Storage":"-40 ... +80 °C","Feedback Input":"Yes","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting","Product Category":"Safety relays","Shock Resistance":"10g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"safety relays","Overvoltage Category":"3","Design Of The Product":"Relay enabling circuits","Total Current Maximum":"12 A","according to IEC 61508":"3","according to IEC 62061":"3","power loss [W] maximum":"2 W","Safety-Related Circuits":"Yes","EMC emitted interference":"IEC 60947-5-1, IEC 61000","With Core End Processing":"1x (0.5 ... 1.0 mm²), 2x (0.5 ... 1.0 mm²)","according to ISO 13849-1":"e","Of The Sensor Input Minimum":"150 ms","Operating Frequency Maximum":"360 1/h","Safe failure fraction (SFF)":"99 %","Without Core End Processing":"1x (0.5 ... 1.5 mm²), 2x (0.5 ... 1.5 mm²)","Type Of Electrical Connection":"spring-loaded terminal (push-in)","Insulation Voltage Rated Value":"300 V","Monitoring Of Floating Sensors":"Yes","Product Function Parameterizable":"sensor floating / sensor non-floating, monitored start-up / automatic start","Safety-Related Delayed Switching":"0","Monitoring Of Non-Floating Sensors":"Yes","Relative Humidity During Operation":"10 ... 95 %","air pressure according to SN 31205":"90 ... 106 kPa","of the ON pushbutton input minimum":"0.015 s","Product Feature Cross-Circuit-Proof":"Yes","operational current at 17 V minimum":"5 mA","Cascading Input/Functional Switching":"No","Safety-Related Instantaneous Contact":"3","Surge Voltage Resistance Rated Value":"4 000 V","category according to EN ISO 13849-1":"4","protection class IP of the enclosure":"IP20","stop category according to EN 60204-1":"0","installation environment regarding EMC":"This product is suitable for Class B environments and can also be used in domestic environments.","Magnetically Operated Switch Monitoring":"Yes","reference code according to IEC 81346-2":"F","Recovery Time After Power Failure Typical":"0.09 s","Suitability For Interaction Press Control":"No","Touch Protection Against Electrical Shock":"finger-safe","safety device type according to IEC 61508-2":"Type A","For Signaling Function Instantaneous Contact":"1","Type Of Electrical Connection Plug-In Socket":"No","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Number Of Sensor Inputs 1-Channel Or 2-Channel":"1","Required Spacing For Grounded Parts At The Side":"5 mm","Type Of The Safety-Related Wiring Of The Inputs":"single-channel and two-channel","hardware fault tolerance according to IEC 61508":"1","vibration resistance according to IEC 60068-2-6":"5 ... 500 Hz: 0.75 mm","PFHD with high demand rate according to EN 62061":"1.7E-9 1/h","suitability for operation device connector 3ZY12":"No","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","PFDavg with low demand rate according to IEC 61508":"1E-6","Installation Altitude At Height Above Sea Level Maximum":"4 000 m; Derating, see Product Notification 109792701","Recovery Time After Opening Of The Safety Circuits Typical":"10 ms","Thermal Current Of The Switching Element With Contacts Maximum":"5 A","Backslide Delay Time After Opening Of The Safety Circuits Typical":"10 ms","design of the fuse link for short circuit protection of the NC contacts of the relay outputs required":"Diazed or Neozed fuses, operating class gL/gG: 6 A or MCB type A: 2 A or MCB type B: 2 A or MCB type C: 1 A","design of the fuse link for short-circuit protection of the NO contacts of the relay outputs required":"gL/gG: 6A or circuit breaker type A: 3A or circuit breaker type B: 2A or circuit breaker type C: 1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3SK1111-2AB30/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3SK1111-2AB30 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are listed here."},{"question":"What is the depth of 3SK1111-2AB30?","answer":"The depth is 121.6 mm. Combined with the 22.5 mm width and 100 mm height, it fits a standard DIN-rail enclosure."},{"question":"What wire sizes does 3SK1111-2AB30 accept?","answer":"It accepts solid or stranded conductors: 1x (20...16 AWG) or 2x (20...16 AWG). With ferrules, it takes 1x (0.5...1.0 mm²) or 2x (0.5...1.0 mm²)."},{"question":"What compliance documentation does Siemens provide for 3SK1111-2AB30?","answer":"The relay is designed to IEC 61508 and IEC 62061 for SIL 3, and EMC compliance to IEC 60947-5-1 and IEC 61000. Standard Siemens documentation includes the datasheet, manual, and declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SK1111-2AB30","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/3SK1111-2AB30 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}}