{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-1CB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-1CB0","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-1CB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1CB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU1116-1CB0 thermal overload relay, size S00, Class 10 trip, 3-pole, screw-type terminals, IP20 front face protection.","salesMarkdown":"Mounting is via direct contactor mounting (fastening method), so it clips onto a matching SIRIUS contactor without additional DIN-rail hardware. The mounting position allows rotation of ±135° on a vertical surface and tilting of ±45° to front and back, giving panel layout flexibility. Trip Class 10 is the standard for general-purpose motor starting — it coordinates with most IEC and NEMA motor designs. The 3-pole main circuit (Number Of Poles For Main Current Circuit: 3) covers three-phase motors directly. This is a qualification parameter for the insulation coordination, not a continuous rating — it confirms the relay can withstand switching transients common in motor circuits without flashover. Power dissipation per pole is 1.9 W, giving a total of 5.7 W for the three poles. The 3RU1116-1CB0 carries ATEX approval (Type Of Protection: DMT 98 ATEX G 001), which qualifies it for use in potentially explosive gas atmospheres — typically Zone 2 or Zone 22 depending on the system certification. This is a documented certification, not a self-declaration, so it supports an audit trail for hazardous-area installations. Relative humidity during operation is rated at 100 %, which covers condensing environments — useful in washdown zones or outdoor cabinets provided the IP20 front is supplemented by the enclosure's own rating. Shock resistance is 8g for 10 ms, a standard industrial vibration specification that covers most motor-starter applications on fixed equipment. It is not rated for continuous high-frequency vibration (e.g., near a large reciprocating compressor) without additional damping. Both the main circuit and auxiliary/control circuit use screw-type terminals. The main circuit accepts 2× (0.5…1.5 mm²) solid or 2× (0.75…2.5 mm²) solid/finely stranded with core-end processing. The auxiliary circuit accepts 2× (0.5…1.5 mm²) solid or 2× (0.75…2.5 mm²) — note the auxiliary terminals do not accept the larger 2.5 mm² strand count in the same gauge range as the main terminals. For AWG, main contacts accept 2× (20…16), 2× (18…14), and 2× 12; auxiliary contacts accept 2× (20…16) and 2× (18…14). This is a standard dual-terminal design for looping through without separate terminal blocks. The relay measures 45 mm wide, 87 mm high, and 78 mm deep. Clearance requirements: 0 mm upwards, forwards, and backwards; 6 mm at the side; 0 mm downwards. The zero-clearance upward and forward dimensions are typical for contactor-mounted overloads — they sit flush against the contactor face. The 6 mm side clearance is the minimum gap to adjacent devices for heat dissipation and arc flash mitigation. Panel layout can be tight; the S00 frame is the smallest SIRIUS size.","metaTitle":"Siemens 3RU1116-1CB0 SIRIUS Thermal Overload Relay, S00, Cla","metaDescription":"Siemens 3RU1116-1CB0 SIRIUS thermal overload relay, size S00, Class 10 trip, 3-pole, screw terminals, IP20 front, ATEX certified. Active 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 ... 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":"1.8 ... 2.5 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=126700&mlfb=3RU1116-1CB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1CB0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 3RU1116-1CB0 carry?","answer":"It carries ATEX certification (DMT 98 ATEX G 001), surge voltage resistance of 6 kV (IEC 60947-1), and a substance prohibition date of 01.07.2006 indicating RoHS compliance. The IP20 front face provides finger-safe touch protection."},{"question":"What are the terminal wire sizes for the 3RU1116-1CB0?","answer":"Main circuit screw terminals accept 2× (0.5…1.5 mm²) solid or 2× (0.75…2.5 mm²) solid/finely stranded with ferrules. Auxiliary circuit terminals accept 2× (0.5…1.5 mm²) solid or 2× (0.75…2.5 mm²). AWG equivalents: main contacts accept 2× (20…16), 2× (18…14), and 2× 12; auxiliary contacts accept 2× (20…16) and 2× (18…14)."},{"question":"Does the 3RU1116-1CB0 require side clearance for mounting?","answer":"Yes, it requires 6 mm clearance at the side. Clearances upwards, forwards, backwards, and downwards are all 0 mm when mounted on a contactor."},{"question":"What is the depth of the 3RU1116-1CB0?","answer":"The depth is 78 mm. Width is 45 mm, height is 87 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-1CB0","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/3RU1116-1CB0 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}}