{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2116-1EC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2116-1EC0","canonicalUrl":"https://aoctrl.com/siemens/3RU2116-1EC0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2116-1EC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2116-1EC0 thermal overload relay, size S00, Class 10 trip, 690 V rated, spring-loaded terminals, contactor mounting.","salesMarkdown":"The Siemens 3RU2116-1EC0 is a SIRIUS thermal overload relay in the S00 frame size, designed for direct contactor mounting — it snaps onto the matching 3RT2 contactor without extra wiring brackets. The auxiliary contact block is integrated, not a bolt-on add-on, saving one DIN rail position. Rated insulation voltage is 690 V, and the relay carries motor power ratings of 1.5 kW at 400 V, 2.2 kW at 500 V, and 3 kW at 690 V — these are the AC-3e values that govern motor protection selection, not the thermal current alone. Temperature compensation is active from -40 to +60 °C, so the trip curve stays accurate across the panel ambient range without manual adjustment. ## Auxiliary contact ratings — what the voltage columns mean for your control circuit The integrated auxiliary switch is rated at different currents depending on the control voltage you are switching: 3 A at 120 V AC, 2 A at 24 V DC and at 230 V AC, 1 A at 400 V AC, and 0.75 A at 690 V AC. These are the make/break capacities for the signal contact feeding the PLC input or the holding circuit on the contactor coil. If your control voltage is 24 V DC, the 2 A rating covers most small PLC input modules and contactor coils in the S00 range — no interposing relay needed for a single load. Dimensions are 45 mm wide, 87 mm tall, 70 mm deep — the S00 footprint that mates directly with the 3RT2 contactor. The main circuit uses spring-loaded terminals accepting 2 × (0.5 to 2.5 mm²) solid or stranded copper. Screwdriver slot is 3.0 × 0.5 mm, so a standard 3 mm flat-blade fits. Mounting position is any, which helps when the contactor is oriented sideways in a tight gland-plate layout. The relay includes temperature compensation across the operating range, so the trip characteristic does not drift with panel heat. Substance prohibition date is 10/01/2009, indicating RoHS compliance from that date forward.","metaTitle":"Siemens 3RU2116-1EC0 SIRIUS Thermal Overload Relay, Class 10","metaDescription":"Siemens 3RU2116-1EC0 SIRIUS thermal overload relay, size S00, Class 10 trip, 690 V rated, 1.5-3 kW motor protection. Active production, sourced to order.","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":"1.5 kW","at 480 V rated value":"4 A","at 500 V rated value":"2.2 kW","at 600 V rated value":"4 A","at 690 V rated value":"3 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":"4 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":"4 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":"2.8 ... 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$27.94","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/492c8dd3f7f56ba9c9bca993131e93af.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=165853&mlfb=3RU2116-1EC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2116-1EC0/alternatives.json"},"ai":{"faq":[{"question":"What does the 'Note for message Tripped' mean?","answer":"The relay has an integrated auxiliary switch that provides a signal contact for a 'Tripped' message — typically wired to a PLC input or indicator lamp to show the overload has operated."},{"question":"What are the key motor power ratings for this relay?","answer":"Motor protection ratings are 1.5 kW at 400 V, 2.2 kW at 500 V, and 3 kW at 690 V, all under AC-3e duty."},{"question":"What is the physical size and mounting method?","answer":"It is size S00, 45 mm wide × 87 mm tall × 70 mm deep, and mounts directly onto a Siemens 3RT2 contactor without additional hardware."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2116-1EC0","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/3RU2116-1EC0 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}}