{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU6116-1KB1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU6116-1KB1","canonicalUrl":"https://aoctrl.com/siemens/3RU6116-1KB1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU6116-1KB1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU6116-1KB1 thermal overload relay, 9.0...12.5 A adjustable, Class 10, Size S00, stand-alone installation, screw-type terminals for main and auxiliary circuits, 690 V rated insulation voltage.","salesMarkdown":"The 3RU6116-1KB1 is a Siemens SIRIUS thermal overload relay sized for motor protection in stand-alone installations. Its adjustable current response range of 9 to 12.5 A and Class 10 trip characteristic mean it protects motors with a full-load current in that band against sustained overloads — the Class 10 rating ensures it trips within 10 seconds at 7.2× the set current, fast enough for most standard induction motors starting across the line. The Size S00 footprint is the compact frame that mates directly with S00 contactors in the same SIRIUS family, so if you're already running S00 contactors, this relay drops onto the same mounting interface without adapters. Rated operational current is 12.5 A at 690 V, 50-60 Hz. The 3-pole design covers three-phase motor circuits. Screw-type terminals on both main and auxiliary circuits accept 2× (0.5...1.5 mm²) solid or stranded, or 2× (0.75...2.5 mm²) finely stranded with ferrule — standard panel wire. Tightening torque for main contacts is 0.8...1.2 N·m. ## Deployment context and sourcing This relay mounts in any position via stand-alone fastening — no DIN rail required, though it can be panel-mounted alongside other SIRIUS gear. With a width of 45 mm, depth of 80 mm, and height of 89 mm, it fits a compact panel footprint. Required spacing to grounded parts at the side is 6 mm. Relative humidity tolerance of 0 to 90% handles non-condensing conditions. ## Compliance and auxiliary ratings Surge voltage resistance is rated at 6 kV, with insulation voltage of 690 V at pollution degree 3. Shock resistance per IEC 60068-2-27 is 8g / 11 ms. Power loss totals 5.1 W typical, with 6.6 W at rated current in hot operating state and 2.2 W per pole. Auxiliary contact ratings: 2 A at 24 V, 0.22 A at 110 V, 2 A at 230 V. The relay carries substance prohibitance compliance dated 05/01/2012 — consistent with RoHS/REACH requirements.","metaTitle":"Siemens 3RU6116-1KB1 SIRIUS Overload Relay, 9-12.5 A, Class","metaDescription":"Siemens SIRIUS 3RU6116-1KB1 thermal overload relay, 9-12.5 A adjustable, Class 10, Size S00. Screw terminals, stand-alone mount. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"80 mm","Width":"45 mm","title":"3RU6116-1KB1","Height":"89 mm","at 24 V":"2 A","Per Pole":"2.2 W","at 110 V":"0.22 A","at 230 V":"2 A","Trip Class":"CLASS 10","description":"Overload relay 9.0...12.5 A size S00, class 10, for motor protection stand-alone installation main circuit: screw terminal AUX. circuit: screw terminal manual automatic reset","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"stand-alone installation","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Thermal overload relay","For Main Current Circuit":"screw-type terminals","power loss [W] total typical":"5.1 W","Operating Voltage Rated Value":"690 V","Substance Prohibitance (Date)":"05/01/2012","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"12.5 A","for AWG cables for main contacts":"2x (20 ... 16), 2x (20 ... 18), 2x 12","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"0 ... 90 %","Surge Voltage Resistance Rated Value":"6 kV","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","shock resistance according to IEC 60068-2-27":"8g / 11 ms","Required Spacing For Grounded Parts At The Side":"6 mm","Size Of Contactor Can Be Combined Company-Specific":"S00","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","Tightening Torque For Main Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","insulation voltage with degree of pollution 3 at AC rated value":"690 V","power loss [W] for rated value of the current at AC in hot operating state":"6.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"9 ... 12.5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a65324676ae4f4456bae9ddca14d03aa.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621529&mlfb=3RU6116-1KB1"},"ai":{"faq":[{"question":"Where can I buy 3RU6116-1KB1 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the closest functional second-source to 3RU6116-1KB1?","answer":"The 3RU2116-1FC1 is a functional peer in the same SIRIUS overload relay family, but it is a different frame size (S0 vs S00) and has different current ranges and terminal configurations. The 3RU6116-1KB1 is Size S00 with a 9-12.5 A range; the 3RU2116-1FC1 is Size S0. They are not drop-in interchangeable without panel modifications."},{"question":"What is the depth of 3RU6116-1KB1?","answer":"The depth is 80 mm."},{"question":"What is the width of 3RU6116-1KB1?","answer":"The width is 45 mm."},{"question":"Will 3RU6116-1KB1 drop into a panel specified for 3RU2116-1FC1?","answer":"No — the 3RU6116-1KB1 is Size S00 while the 3RU2116-1FC1 is Size S0. The mounting footprint, terminal spacing, and contactor interface differ. Panel modifications or a different contactor frame would be required."},{"question":"What compliance documentation does Siemens provide for 3RU6116-1KB1?","answer":"The part carries substance prohibitance compliance dated 05/01/2012, consistent with RoHS and REACH requirements. Surge voltage resistance is 6 kV with insulation voltage 690 V at pollution degree 3. Full compliance declarations are available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU6116-1KB1","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/3RU6116-1KB1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}