{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-1AC1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-1AC1","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-1AC1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1AC1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU1116-1AC1, CLASS 10 trip class, size S00, AC-3 rated 690 V max, Cage Clamp terminals, IP20 front protection.","salesMarkdown":"Trip class CLASS 10 is the deciding factor for motor protection: it coordinates with most IEC standard motors up to 10 seconds of locked-rotor time. If your motor has a longer acceleration curve (high-inertia loads like centrifuges), you would need CLASS 20 or 30 — but for general-purpose three-phase motors this is the correct match. The main circuit uses Cage Clamp terminals accepting 2x (0.5... 2.5 mm²) solid or 2x (0.5... 1.5 mm²) finely stranded with ferrule. That covers the typical control wiring range for motor circuits up to around 7 A (depending on the contactor partner). The auxiliary contact block is not included (0 auxiliary contacts as standard), so plan for a separate 3RU1900-.. series block if you need N/O or N/C signaling. Power dissipation is 5.7 W total at AC hot operating state (1.9 W per pole). In a densely packed panel, that heat adds up — the S00 frame is small, so ensure ventilation or spacing per the derating guidelines if ambient exceeds 40 °C. This relay is deployed in motor control centers (MCCs), distribution boards, and standalone starter assemblies across manufacturing, water treatment, HVAC, and material handling. The ATEX certification (DMT 98 ATEX G 001) permits installation in potentially explosive gas atmospheres (Zone 1 or 2) when paired with an appropriate contactor and enclosure — a common requirement in chemical, oil and gas, and grain handling facilities. The stand-alone installation style means it can be snapped onto a DIN rail or screw-mounted directly, not only paired with a contactor.","metaTitle":"Siemens 3RU1116-1AC1 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU1116-1AC1 SIRIUS thermal overload relay, CLASS 10 trip, size S00, 690 V AC-3 max, Cage Clamp terminals, IP20 front, ATEX certified. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"78 mm","Solid":"2x (0.5 ... 2.5 mm²)","Width":"45 mm","Height":"92 mm","Maximum":"2 000 m","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","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","Backwards":"0 mm","Downwards":"0 mm","Trip class":"CLASS 10","At The Side":"6 mm","On The Front":"IP20","Mounting type":"stand-alone installation","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","During Transport":"-55 ... +80 °C","Shock resistance":"8g / 10 ms","Mounting position":"with vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back","Product brand name":"SIRIUS","Type of protection":"DMT 98 ATEX G 001","Product designation":"thermal overload relay","For Auxiliary Contacts":"0","Size of overload relay":"S00","For Main Current Circuit":"Cage Clamp terminals","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"5.7 W","Relative humidity during operation":"100 %","at AWG conductors for main contacts":"2x (24 ... 14)","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 81346-2":"F","at AC in hot operating state per pole":"1.9 W","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (20 ... 14)","For Auxiliary And Control Current Circuit":"Cage Clamp terminals","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","Number of NC contacts for auxiliary contacts":"1","Number of NO contacts for auxiliary contacts":"1","Size of contactor can be combined company-specific":"S00","Removable Terminal For Auxiliary And Control Circuit":"No","Insulation voltage with degree of pollution 3 rated value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A, quick: 10 A","Adjustable pick-up value current of the current-dependent overload release":"1.1 ... 1.6 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=249721&mlfb=3RU1116-1AC1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1AC1/alternatives.json"},"ai":{"faq":[{"question":"What is the trip class and why does it matter?","answer":"It is CLASS 10, meaning the relay will trip within 10 seconds at 7.2× the current setting. This matches the starting characteristics of standard induction motors — fast enough to protect against locked-rotor conditions but slow enough to allow normal acceleration."},{"question":"Does this relay include auxiliary contacts?","answer":"No. The standard configuration has 0 auxiliary contacts. You will need to add a separate auxiliary contact block from the 3RU1900 series if you require N/O or N/C signaling for the overload status."},{"question":"What compliance documentation is available for this part?","answer":"The relay carries ATEX certification (DMT 98 ATEX G 001) for use in explosive gas atmospheres. It is designed to meet IEC 60947-4-1 for overload relays. Specific RoHS and REACH declarations are available from Siemens upon request through the standard documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-1AC1","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/3RU1116-1AC1 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}}