{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU6116-1DB1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU6116-1DB1","canonicalUrl":"https://aoctrl.com/siemens/3RU6116-1DB1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU6116-1DB1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU6116-1DB1, adjustable 2.2-3.2 A, Class 10, size S00, screw terminals, stand-alone installation.","salesMarkdown":"It protects a 3-phase motor by monitoring current through its three main poles and tripping on a sustained overload according to a Class 10 curve — meaning it must trip within 10 seconds at 7.2× the set current, a standard for standard-duty induction motors starting under load. The adjustable current response range is 2.2 to 3.2 A, set via a dial on the front. This covers small motors in the 0.75–1.5 kW range on 400 V supplies. The relay is thermal, bimetallic strip design — no electronics to fail, but it does need a cool-down period after a trip before it resets. ## Where it fits — panel and contactor integration This is a size S00 relay, meaning it is designed to mount directly below a S00-frame contactor like the 3RT201 or 3RT101 series. The connection arrangement places main circuit terminals top and bottom, so the contactor output feeds straight into the relay input with no extra wiring. Dimensions are 45 mm wide, 89 mm tall, and 80 mm deep. Side spacing to grounded parts must be at least 6 mm. The tightening torque for the main screw terminals is 0.8 to 1.2 N·m. Rated operational current is 3.2 A at 690 V, 50/60 Hz. The insulation voltage is 690 V with pollution degree 3, and surge voltage resistance is 6 kV — this is the standard coordination level for industrial control panels. The relay can be installed up to 2000 m above sea level without derating. Power dissipation is modest: 5.2 W typical total, 5.7 W at rated current in hot operating state, and 1.9 W per pole. This keeps the heat rise low inside a sealed enclosure. Humidity tolerance is 0 to 90% relative humidity during operation. The auxiliary and control circuits use screw terminals as well, accepting 2× (0.5 to 1.5 mm²) solid or 2× (0.75 to 2.5 mm²) stranded. AWG equivalents are 2× (20 to 16) for main contacts and 2× (20 to 16) or 2× (18 to 14) for auxiliary contacts. Shock resistance is 8g for 11 ms per IEC 60068-2-27. Compliance documentation is standard for Siemens industrial controls: RoHS compliance date is May 1, 2012 (substance prohibitance date). The relay carries the usual CE, UL, CSA, and IEC certifications for the SIRIUS family, though specific approval marks are not listed in this record. The product designation is clear from the nameplate: SIRIUS 3RU6116-1DB1, thermal overload relay, 2.2-3.2 A, Class 10.","metaTitle":"Siemens 3RU6116-1DB1 SIRIUS Overload Relay, 2.2-3.2 A, Class","metaDescription":"Siemens SIRIUS 3RU6116-1DB1 thermal overload relay, 2.2-3.2 A adjustable range, Class 10 trip, size S00. Screw terminals, stand-alone installation. Current production. Sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"80 mm","Width":"45 mm","Height":"89 mm","at 24 V":"2 A","Per Pole":"1.9 W","at 110 V":"0.22 A","at 230 V":"2 A","Trip Class":"CLASS 10","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":"5.2 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":"3.2 A","at 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","at 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":"5.7 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.2 ... 3.2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621517&mlfb=3RU6116-1DB1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU6116-1DB1/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this overload relay?","answer":"Adjustable current range is 2.2 to 3.2 A, trip class is Class 10, rated operational current is 3.2 A at 690 V 50/60 Hz, and it is size S00 for direct mounting under S00 contactors."},{"question":"What wire sizes does the 3RU6116-1DB1 accept?","answer":"Main circuit screw terminals accept 2× (0.5 to 1.5 mm²) solid or 2× (0.75 to 2.5 mm²) stranded, or AWG 2× (20 to 16). Auxiliary terminals accept 2× (20 to 16) or 2× (18 to 14) AWG."},{"question":"What compliance documentation is available for this relay?","answer":"RoHS compliance date is May 1, 2012. The relay is part of the Siemens SIRIUS family which carries CE, UL, CSA, and IEC certifications for industrial control equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU6116-1DB1","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/3RU6116-1DB1 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}}