{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-0KB0-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-0KB0-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-0KB0-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-0KB0-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, size S00, CLASS 10, 3RU1116-0KB0-ZW96, screw terminals, IP20 front, ATEX certified.","salesMarkdown":"It mounts directly onto a SIRIUS contactor — no separate bracket needed — and trips according to CLASS 10 characteristics, meaning it will open the circuit within 10 seconds at a 7.2× current overload. That timing is standard for standard-start induction motors; if you're protecting a motor with a long start-up time (heavy inertia loads like a centrifuge or large fan), you'd want a higher class like CLASS 20 or 30, but for most pump, conveyor, and compressor duty, CLASS 10 is the right call. It carries an ATEX approval (DMT 98 ATEX G 001), so it's suitable for use in potentially explosive atmospheres — think grain elevators, chemical plants, or paint booths where a motor overload could ignite the environment. The front face is IP20, which is standard for inside a panel; you won't get a finger in there, but it's not sealed against dust or water ingress, so keep it behind the enclosure door. ## Mounting and wiring — what fits where It measures 45 mm wide, 87 mm tall, and 78 mm deep — that's a compact footprint that fits a standard 45 mm-wide contactor footprint. The main circuit accepts 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) finely stranded with ferrule — that covers most motor leads up to about 2.5 mm² (roughly 14 AWG). Auxiliary contacts take similar sizes: 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded. If you're wiring with AWG, the main terminals accept 2x (20 to 16) or 2x (18 to 14) or 2x 12, and auxiliary take 2x (20 to 16) or 2x (18 to 14). So you can land a 12 AWG motor lead on the main circuit, but the auxiliary side tops out at 14 AWG — watch that when you're looping through the aux contacts for a control signal. ## Electrical ratings and power dissipation The auxiliary contacts are rated for a range of control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. That means the contacts can handle the typical PLC input or contactor coil draw at common control voltages — just don't try to switch a motor load through them; they're for signaling, not power. Each pole dissipates 1.9 W, so three poles add up to about 5.7 W of heat inside the enclosure. In a densely packed panel, that's worth considering for thermal management — especially if you're stacking several relays side by side with zero clearance. Shock resistance is 8g for 10 ms — that's enough for most industrial environments unless you're mounting it directly on a vibrating machine frame.","metaTitle":"Siemens 3RU1116-0KB0-ZW96 SIRIUS Thermal Overload Relay, CLA","metaDescription":"Siemens 3RU1116-0KB0-ZW96 SIRIUS thermal overload relay, size S00, CLASS 10 trip, IP20 front, ATEX certified, current production. Sourced to order via 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)":"07/01/2006","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 %","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","reference code according to IEC 81346-2":"F","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","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":"0.9 ... 1.25 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=152562&mlfb=3RU1116-0KB0-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-0KB0-ZW96/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this relay carry?","answer":"It carries ATEX approval (DMT 98 ATEX G 001) for explosive atmospheres, IP20 front protection, and surge voltage resistance rated at 6 kV. The substance prohibition date of 07/01/2006 indicates RoHS compliance for the EU directive, and the reference code per IEC 81346-2 is F (protective device)."},{"question":"What wire sizes does the 3RU1116-0KB0-ZW96 accept?","answer":"Main circuit screw terminals accept 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) finely stranded with ferrule, or AWG 2x (20 to 16), 2x (18 to 14), or 2x 12. Auxiliary contacts accept 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded, or AWG 2x (20 to 16) or 2x (18 to 14)."},{"question":"What is the physical size of the 3RU1116-0KB0-ZW96?","answer":"Width 45 mm, height 87 mm, depth 78 mm. It is the S00 frame size, designed to mount directly onto a SIRIUS contactor with zero clearance in all directions except 6 mm to the side."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-0KB0-ZW96","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/3RU1116-0KB0-ZW96 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}}