{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-1BB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-1BB0","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-1BB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1BB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU1116-1BB0 thermal overload relay, CLASS 10, size S00, 3-pole, screw-type terminals, IP20 front, ATEX approved.","salesMarkdown":"It mounts directly to a contactor — the fastening method is contactor mounting — so it shares the same DIN-rail or screw-panel footprint as the contactor it pairs with, saving a row of rail space. The relay is rated CLASS 10 trip class, meaning it will trip within 10 seconds at 7.2× the set current, which is the standard for standard-duty motor starting (not high-inertia loads that need CLASS 20 or 30). The relay body is 45 mm wide, 87 mm tall, and 78 mm deep. Zero clearance required upwards, forwards, backwards, and downwards — only 6 mm needed at the side. The 1.9 W dissipation per pole adds up to 5.7 W total at full load — negligible for a ventilated cabinet, but worth noting in a sealed, high-density panel. Screw-type terminals on both the main and auxiliary circuits accept solid or finely stranded wire with ferrule: 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) per clamp. For AWG, that translates to 2× (20 to 16) or 2× (18 to 14) solid, plus 2× 12 AWG on the main contacts. The auxiliary contacts handle 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V — enough for a PLC input or a contactor coil feedback, but not for power switching. The control circuit draws 0.22 A at 110/125 V and 0.11 A at 220 V, so factor that into your 24 VDC power supply budget if you're using a DC coil contactor.","metaTitle":"Siemens 3RU1116-1BB0 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU1116-1BB0 SIRIUS thermal overload relay, CLASS 10, size S00, 3-pole, screw terminals, IP20 front, ATEX approved, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"78 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","Height":"87 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","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","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 10","At The Side":"6 mm","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","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","Size Of Overload Relay":"S00","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","reference code acc. to IEC 81346-2":"F","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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","operating voltage at AC-3 rated value maximum":"690 V","Size Of Contactor Can Be Combined Company-Specific":"S00","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/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":"1.4 ... 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=160799&mlfb=3RU1116-1BB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1BB0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RU1116-1BB0?","answer":"The depth is 78 mm, with a width of 45 mm and height of 87 mm."},{"question":"What wire sizes does 3RU1116-1BB0 accept?","answer":"Solid wire: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) per terminal. AWG equivalents: 2x (20 to 16) or 2x (18 to 14) solid, plus 2x 12 AWG on main contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-1BB0","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/3RU1116-1BB0 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}}