{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU5136-1HB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU5136-1HB0","canonicalUrl":"https://aoctrl.com/siemens/3RU5136-1HB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU5136-1HB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU5136-1HB0, 5.5-8 A adjustable, Class 10, 690 V, 3-pole, screw terminals, contactor-mount.","salesMarkdown":"The Siemens 3RU5136-1HB0 is a SIRIUS thermal overload relay — the Class 10 trip curve means it opens within 10 seconds at 7.2× the set current, fast enough to protect standard induction motors on pump, fan, and conveyor loads without nuisance tripping on start-up. The adjustable current response range is 5.5 to 8 A, so you set it to the motor's FLA, not the relay's maximum. The thermal bimetal design is self-powered; no control voltage needed for the overload function itself. Mounts directly onto a contactor of company-specific size S2 — no DIN rail, no adapter bracket. The fastening method is contactor mounting, so it bolts onto the contactor's load side. Dimensions: 55 mm wide, 105 mm high, 118 mm deep. That 55 mm width matches the S2 contactor footprint, so the assembly takes one standard 55 mm slot in the panel. Side spacing to grounded parts: 6 mm minimum. Main contacts accept 2× (0.5 to 1.5 mm²) solid/stranded or 2× (0.75 to 2.5 mm²) — or AWG 2× (18 to 3) and 1× (18 to 1). Auxiliary contacts take 2× (20 to 16) AWG or 2× (18 to 14) AWG. Tightening torque for main terminals: 3 to 5 N·m. The auxiliary switch requires short-circuit protection: fuse gL/gG 6 A or quick 10 A. Arrangement of main circuit connectors is top and bottom — line in from the contactor above, load out below. Relative humidity 0 to 100% during operation — no derating needed for condensing environments. Installation altitude up to 2 000 m. Shock resistance 8g / 10 ms per IEC 60068-2-27. Surge voltage resistance 6 kV. Insulation voltage 690 V at pollution degree 3. Substance prohibitance date 07/01/2006 — RoHS-compliant from that date forward.","metaTitle":"Siemens 3RU5136-1HB0 SIRIUS Thermal Overload Relay, 5.5-8 A,","metaDescription":"Siemens 3RU5136-1HB0 SIRIUS thermal overload relay, 5.5-8 A adjustable, Class 10 trip, 690 V, 3-pole. Screw terminals, contactor-mount. Active production. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"118 mm","Width":"55 mm","title":"3RU5136-1HB0","Height":"105 mm","at 24 V":"1 A","Per Pole":"2.5 W","at 110 V":"0.22 A","at 230 V":"2 A","Trip Class":"CLASS 10","description":"Overload relay 5.5...8 A size S2, class 10 for motor protection for mounting onto contactors main circuit: screw terminal AUX. circuit: screw terminal manual automatic reset","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","Mounting Position":"with vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Thermal overload relay","For Main Current Circuit":"screw-type terminals","power loss [W] total typical":"9 W","Operating Voltage Rated Value":"690 V","Substance Prohibitance (Date)":"07/01/2006","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"8 A","for AWG cables for main contacts":"2x (18 ... 3), 1x (18 ... 1)","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"0 ... 100 %","Surge Voltage Resistance Rated Value":"6 kV","for 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","shock resistance according to IEC 60068-2-27":"8g / 10 ms","Required Spacing For Grounded Parts At The Side":"6 mm","Size Of Contactor Can Be Combined Company-Specific":"S2","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A, quick: 10 A","Tightening Torque For Main Contacts With Screw-Type Terminals":"3 ... 5 N·m","insulation voltage with degree of pollution 3 at AC rated value":"690 V","power loss [W] for rated value of the current at AC in hot operating state":"7.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"5.5 ... 8 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9f9246e5064a3da5f474adee8484c78e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621230&mlfb=3RU5136-1HB0"},"ai":{"faq":[{"question":"What is the adjustable current range of 3RU5136-1HB0?","answer":"The adjustable current response value is 5.5 to 8 A. Set it to the motor's full-load amperage within that window."},{"question":"What is the trip class of this overload relay?","answer":"Trip Class 10 — opens within 10 seconds at 7.2× the set current, suitable for standard induction motor protection."},{"question":"Where can I buy 3RU5136-1HB0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU5136-1HB0","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/3RU5136-1HB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}