{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-1JB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-1JB0","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-1JB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1JB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU1116-1JB0 thermal overload relay, Size S00, Class 10, screw terminals, IP20 front, ATEX, 3-pole, 78 mm depth.","salesMarkdown":"This one mounts directly to a contactor via the contactor mounting fastening method, saving a DIN-rail slot and keeping the power loop short. Size S00 is the smallest SIRIUS frame — 45 mm wide, 87 mm tall, 78 mm deep. That depth (78 mm) is the dimension you need to clear behind the panel door or inside a shallow enclosure; it's the same depth as the matching S00 contactor, so the pair stacks flush. The IP20 front means finger-safe from the panel face, but the bottom terminals are live — standard for a control-panel component. Trip Class 10 means this relay is sized for motors that accelerate to full speed in under 10 seconds — most pumps, fans, and light conveyors. If you've got a high-inertia load (centrifuge, heavy crusher) that takes longer to start, you'd step up to a Class 20 or 30 relay. The 3RU1116-1JB0 is not that relay. The auxiliary contact ratings cover both AC and DC control circuits: 3 A at 120 V AC, 2 A at 230 V AC, 1 A at 400 V AC, and 1 A at 24 V DC. Power dissipation is 2.2 W per pole, so 6.6 W total through the main circuit at full load. That's modest — no forced cooling needed in a standard ventilated panel, but if you're packing a dozen of these in a sealed box, add it to the heat budget. The screw-type terminals accept solid wire from 2× (0.5…1.5 mm²) up to 2× (0.75…2.5 mm²) for both main and auxiliary circuits. AWG equivalents are 2× (20…16) and 2× (18…14). That covers most panel-building wire sizes; if you're terminating 12 AWG on the mains, the 2× 12 AWG entry confirms it's allowed. This relay is designed to snap onto a Siemens SIRIUS S00 contactor (like the 3RT1016 or 3RT1023 series). The contactor mounting method means no DIN rail is consumed by the overload — it rides on the contactor's own footprint. The mounting position allows rotation of ±135° on a vertical surface and tilt of ±45° front-to-back, so you can orient the pair to fit tight gland plates or cable ducts. It carries ATEX certification (DMT 98 ATEX G 001), so it's approved for use in potentially explosive atmospheres when paired with a suitable contactor and installed per the system certificate. Shock resistance is 8g for 10 ms — fine for most industrial machinery, but not rated for continuous high-vibration environments like a crusher deck.","metaTitle":"Siemens 3RU1116-1JB0 SIRIUS Thermal Overload Relay, Class 10","metaDescription":"Siemens 3RU1116-1JB0 SIRIUS thermal overload relay, Class 10 trip, Size S00, IP20 front, ATEX certified. Current production. Quoted 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 ... 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":"2.2 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":"6.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"7 ... 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$42.21","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=308786&mlfb=3RU1116-1JB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1JB0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 3RU1116-1JB0?","answer":"The depth is 78 mm. That's the dimension behind the panel face — critical for enclosure clearance when stacked on an S00 contactor."},{"question":"What wire sizes does the 3RU1116-1JB0 accept?","answer":"Solid wire: 2× (0.5…1.5 mm²) and 2× (0.75…2.5 mm²). AWG equivalents: 2× (20…16) and 2× (18…14), plus 2× 12 for the main circuit. Finely stranded with ferrule: same ranges."},{"question":"Will 3RU1116-1JB0 drop into a panel specified for 3RT1023-1AL20?","answer":"Yes — the 3RU1116-1JB0 is the thermal overload relay that mounts directly on the S00 contactor frame, which includes the 3RT1023 series. Same footprint, same contactor mounting method. No rewiring of the power loop is needed if the contactor is already in place."},{"question":"Where can I buy the 3RU1116-1JB0?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, no stock figures listed here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-1JB0","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/3RU1116-1JB0 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}}