{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1126-1DB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1126-1DB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RU1126-1DB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1126-1DB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, Size S0, CLASS 10, 3RU1126-1DB0-ZX95, screw terminals, ATEX certified, IP20 front.","salesMarkdown":"## SIRIUS thermal overload relay, Size S0, CLASS 10 — 3RU1126-1DB0-ZX95 Mounts directly to a Siemens contactor via the contactor mounting fastening method, saving DIN-rail space and reducing wiring. The relay accepts screw-type terminals for both main and auxiliary circuits, with solid and stranded wire ranges from 0.5 to 2.5 mm² (AWG 20 to 14 for aux, AWG 16 to 8 for main). Rated for 3-pole main current circuits, the relay dissipates 1.9 W per pole under load. Control circuit consumption is 1 A at 24 V, 3 A at 120 V, and 2 A at 230 V — figures that matter when sizing the control transformer or power supply feeding the contactor coil. Dimensions are 45 mm wide, 97 mm high, and 96 mm deep — a compact S0 footprint that fits standard 45 mm modular enclosure slots. Clearance requirements are minimal: 0 mm upwards, forwards, backwards, and downwards, with only 6 mm needed at the side. This zero-clearance design allows dense packing of contactor-relay pairs on a DIN rail without derating for airflow. The relay withstands 100% relative humidity during operation, suitable for unconditioned plant-floor environments. Shock resistance is rated at 8g for 10 ms. Carries DMT 98 ATEX G 001 certification for use in potentially explosive gas atmospheres, and surge voltage resistance rated at 6 kV. Substance prohibitance date of 07/01/2006 aligns with RoHS compliance.","metaTitle":"Siemens 3RU1126-1DB0-ZX95 SIRIUS Thermal Overload Relay, Cla","metaDescription":"Siemens 3RU1126-1DB0-ZX95 SIRIUS thermal overload relay, Size S0, CLASS 10 trip. ATEX certified, IP20 front. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"96 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","Height":"97 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":"S0","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"07/01/2006","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","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":"S0","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":"2.2 ... 3.2 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=466862&mlfb=3RU1126-1DB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1126-1DB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RU1126-1DB0-ZX95?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the trip class and what does it mean?","answer":"CLASS 10 means the relay will trip within 10 seconds at 7.2× the set current, providing fast protection for standard induction motors during locked-rotor conditions without nuisance tripping on normal starts."},{"question":"What certifications does 3RU1126-1DB0-ZX95 carry?","answer":"It carries DMT 98 ATEX G 001 certification for explosive gas atmospheres, IP20 front protection, and surge voltage resistance rated at 6 kV. The substance prohibitance date of 07/01/2006 aligns with RoHS compliance."},{"question":"What are the mounting dimensions and clearances?","answer":"Dimensions are 45 mm wide, 97 mm high, 96 mm deep. Clearance requirements are 0 mm upwards, forwards, backwards, and downwards, with 6 mm at the side — allowing dense panel layouts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1126-1DB0-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/3RU1126-1DB0-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}}