{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-1FB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-1FB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-1FB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1FB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU1116-1FB0-ZX95 thermal overload relay, CLASS 10, size S00, 3-pole, screw terminals, IP20 front, ATEX certified.","salesMarkdown":"The Siemens 3RU1116-1FB0-ZX95 is a SIRIUS thermal overload relay, size S00, with CLASS 10 trip. It mounts directly to a contactor and uses bimetallic strips to model motor heating, tripping the auxiliary contact when the thermal load exceeds the CLASS 10 curve. The IP20 front protection keeps live parts behind the panel door, standard for enclosed control panels. CLASS 10 trip class is the critical selection parameter: it matches the heating time constant of standard general-purpose induction motors. If your motor manufacturer specifies a CLASS 10 overload, this relay provides the correct thermal protection without nuisance tripping on startup. The S00 frame size (45 mm wide, 87 mm tall, 78 mm deep) fits the Siemens S00 contactor footprint — it clips onto the contactor without additional DIN-rail space. The auxiliary contact ratings cover common control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V, so it can directly switch a PLC input or a contactor coil across a range of control supplies. ## Wiring and installation constraints The main circuit accepts solid conductors: 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²), with AWG equivalents 2× (20 to 16) and 2× (18 to 14). Auxiliary contacts take 2× (20 to 16) and 2× (18 to 14) AWG. That zero-clearance top and bottom means you can stack contactor-overload assemblies without extra spacing — useful for high-density motor control centers.","metaTitle":"Siemens 3RU1116-1FB0-ZX95 SIRIUS Thermal Overload Relay, CLA","metaDescription":"Siemens SIRIUS 3RU1116-1FB0-ZX95 thermal overload relay, CLASS 10 trip, size S00, 3 poles, IP20 front, ATEX certified. Current production. 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 ... 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)":"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":"6.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"3.5 ... 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=374145&mlfb=3RU1116-1FB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1FB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Width 45 mm, height 87 mm, depth 78 mm. Clearance: 0 mm upwards, forwards, backwards, and downwards; 6 mm at the side."},{"question":"What wire sizes does the main circuit accept?","answer":"Solid conductors: 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²). AWG equivalents: 2× (20 to 16) and 2× (18 to 14)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-1FB0-ZX95","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/3RU1116-1FB0-ZX95 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}}