{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2116-0KC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2116-0KC0","canonicalUrl":"https://aoctrl.com/siemens/3RU2116-0KC0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2116-0KC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2116-0KC0, Size S00 thermal overload relay, Trip Class 10, 0.37 kW at 400 V, spring-loaded terminals, contactor mounting.","salesMarkdown":"It mounts directly onto a contactor (contactor mounting) and connects to the main circuit via spring-loaded terminals (screwless push-in), accepting 2x (0.5... 2.5 mm²) solid or stranded wire. An integrated auxiliary switch provides a \"Tripped\" signal output. The relay is temperature-compensated from -40 to +60 °C and operates in ambient temperatures from -40 to +70 °C, making it suitable for unconditioned electrical rooms or outdoor cabinets within that range. The headline motor rating is 0.37 kW at 400 V (AC-3e duty), which sets the maximum continuous motor load this relay can protect. At 500 V it is rated for 0.55 kW, and at 690 V for 0.75 kW — the higher voltage allows a slightly larger motor at the same current limit. Auxiliary contact ratings cover both signal-level and pilot-duty switching: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. These are the current-carrying limits for the integrated trip-indication contact — useful for feeding a PLC input or a remote alarm lamp. The auxiliary switch is rated for switching at 690 V as well, though at a reduced 0.75 A. Depth is 70 mm, height 87 mm — compact enough for dense contactor-assembly layouts. Fastening is via contactor mounting, meaning it clips directly onto the matching SIRIUS contactor (e.g., 3RT2 series Size S00) without extra hardware. Terminals accept a 3 mm diameter screwdriver shaft (3.0 x 0.5 mm tip) for the spring-release mechanism. Wire preparation: strip length per the spring-cage spec, no ferrule required for solid wire. Substance compliance includes a RoHS prohibitance date of 10/01/2009, confirming the part meets EU RoHS restrictions for substances like lead, mercury, and cadmium. No separate UL or CSA listing is recorded in this data set, but the SIRIUS series typically carries IEC/EN 60947-4-1 certification — verify for your jurisdiction if a specific agency mark is required.","metaTitle":"Siemens 3RU2116-0KC0 SIRIUS thermal overload relay, Size S00","metaDescription":"Siemens SIRIUS 3RU2116-0KC0 thermal overload relay, Size S00, Trip Class 10, 0.37 kW at 400 V. Spring-loaded terminals, contactor mounting. Current lifecycle stage. Sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"Tripped\"","Depth":"70 mm","Width":"45 mm","Height":"87 mm","at 24 V":"2 A","at 60 V":"0.3 A","Per Pole":"1.9 W","at 110 V":"0.22 A","at 120 V":"3 A","at 125 V":"0.22 A","at 220 V":"0.11 A","at 230 V":"2 A","at 400 V":"1 A","at 690 V":"0.75 A","Trip Class":"CLASS 10","Rated Value":"690 V","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"thermal overload relay","at 400 V rated value":"0.37 kW","at 480 V rated value":"1.25 A","at 500 V rated value":"0.55 kW","at 600 V rated value":"1.25 A","at 690 V rated value":"0.75 kW","Size Of Overload Relay":"S00","For Main Current Circuit":"spring-loaded terminals","Temperature Compensation":"-40 ... +60 °C","MTTF with high demand rate":"2 280 a","Design Of Screwdriver Shaft":"Diameter 3 mm","Size Of The Screwdriver Tip":"3,0 x 0,5 mm","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"1.25 A","at AWG cables for main contacts":"1x (20 ... 12)","For Auxiliary And Control Circuit":"spring-loaded terminals","Between Main And Auxiliary Circuit":"440 V","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Between Auxiliary And Auxiliary Circuit":"440 V","reference code according to IEC 81346-2":"F","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","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"8g / 11 ms","operational current at AC-3e at 400 V rated value":"1.25 A","Size Of Contactor Can Be Combined Company-Specific":"S00","contact rating of auxiliary contacts according to UL":"B600 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A, quick: 10 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","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":"0.9 ... 1.25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3c652b5eae34931d460a182be0eae0dd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=137452&mlfb=3RU2116-0KC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2116-0KC0/alternatives.json"},"ai":{"faq":[{"question":"What does the note 'for message Tripped' mean?","answer":"It indicates that the integrated auxiliary switch is wired to signal a tripped condition — typically a normally-open contact that closes when the overload relay has operated, used to trigger an alarm or PLC input."},{"question":"What is the physical size of this overload relay?","answer":"Size S00, with dimensions 45 mm wide, 70 mm deep, and 87 mm high. It is the smallest frame in the SIRIUS contactor-assembly range."},{"question":"What motor power can it protect at 400 V?","answer":"It is rated for 0.37 kW at 400 V in AC-3e duty. At 500 V the rating increases to 0.55 kW, and at 690 V to 0.75 kW."},{"question":"Does it mount directly to a contactor?","answer":"Yes, the fastening method is contactor mounting — it clips onto a matching SIRIUS Size S00 contactor (e.g., 3RT2 series) without separate DIN-rail hardware, though it can also be mounted on a DIN rail if needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2116-0KC0","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/3RU2116-0KC0 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}}