{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-0EC1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-0EC1","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-0EC1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-0EC1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU1116-0EC1, CLASS 10, Size S00, Cage Clamp terminals, 690 V AC-3 max, IP20 front.","salesMarkdown":"The Siemens 3RU1116-0EC1 is a SIRIUS-brand thermal overload relay, the component that sits between a contactor and a motor to protect against overloads and phase loss. This relay is in the Size S00 frame, the smallest of the SIRIUS overload relay sizes, so it pairs with S00 contactors and fits into compact motor starter assemblies. The main circuit uses Cage Clamp terminals — spring-loaded, no screw torque to check, and fast to wire on a panel build. The 6 kV surge voltage resistance means the relay can handle the transients that come from switching motor loads without flashover — important for reliability in a panel with contactors and drives nearby. Power dissipation is 4.8 W total in hot operating state (1.6 W per pole). That's low enough that you don't need to derate adjacent components in a crowded S00 starter assembly, but worth checking if you're stacking multiple relays in a sealed enclosure with no airflow. The auxiliary contacts are rated for switching at various control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V. These are the contacts that signal the PLC or trip the upstream contactor — make sure your control circuit voltage matches one of these columns so you get the rated breaking capacity. Mounts as stand-alone installation — no DIN rail required, though it can be snapped onto one if the contactor base provides the rail clip. Dimensions are 45 mm wide, 92 mm high, 78 mm deep — the S00 footprint. That means you can butt it against the contactor on four sides, but need 6 mm breathing room laterally for heat dissipation and wiring access. Wire range for the main circuit: solid 2x (0.5... 2.5 mm²) or finely stranded with ferrule 2x (0.5... 1.5 mm²). AWG equivalent 2x (24... 14). The Cage Clamp accepts both solid and ferruled stranded — strip length is standard for the clamp, no special tool needed. Operating temperature range -20 to +70 °C, storage/transport -55 to +80 °C. The 100 % relative humidity rating during operation means it can run in condensing environments — think washdown areas or unheated pump houses — without internal moisture damage. Shock resistance is 8g for 10 ms, which covers most vibration from contactors and breakers in the same panel. The ATEX protection type DMT 98 ATEX G 001 means it's approved for use in potentially explosive gas atmospheres — check your zone classification against the certificate.","metaTitle":"Siemens 3RU1116-0EC1 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU1116-0EC1 SIRIUS thermal overload relay, CLASS 10 trip, Size S00, Cage Clamp terminals, IP20 front, 690 V AC-3 max, current lifecycle stage. Sourced to order.","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":"4.8 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":"1.6 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":"0.28 ... 0.4 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=243459&mlfb=3RU1116-0EC1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-0EC1/alternatives.json"},"ai":{"faq":[{"question":"What does CLASS 10 mean on this overload relay?","answer":"CLASS 10 means the relay will trip within 10 seconds at 7.2 times the motor full-load current. This is the standard trip class for general-purpose induction motor protection — fast enough to prevent winding damage during a stall, but slow enough to ignore normal starting inrush."},{"question":"What is the depth of the 3RU1116-0EC1?","answer":"The depth is 78 mm. Combined with the 45 mm width and 92 mm height, it fits the SIRIUS S00 footprint."},{"question":"What wire sizes does the Cage Clamp terminal accept?","answer":"Solid conductors: 2x (0.5... 2.5 mm²). Finely stranded with ferrule: 2x (0.5... 1.5 mm²). AWG equivalent: 2x (24... 14)."},{"question":"What compliance documentation is available for this part?","answer":"The relay carries ATEX protection type DMT 98 ATEX G 001 for gas atmospheres. The IP20 front protection rating covers touch-safe installation. Reference code per DIN EN 81346-2 is F. Additional certifications (UL, CSA, CE, UKCA, EAC) are typically available from the manufacturer's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-0EC1","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/3RU1116-0EC1 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}}