{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU7136-4GB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU7136-4GB0","canonicalUrl":"https://aoctrl.com/siemens/3RU7136-4GB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU7136-4GB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU7136-4GB0, Size S2 thermal overload relay, 45 A rated operational current, CLASS 10, screw terminals, 690 V, 50/60 Hz.","salesMarkdown":"## Integrator's brief — SIRIUS 3RU7136-4GB0 The Siemens 3RU7136-4GB0 is a Size S2 thermal overload relay in the SIRIUS family, rated for a 45 A operational current at 690 V AC/DC, 50/60 Hz. Mounts directly onto the contactor (contactor mounting), not a standalone DIN-rail device. The relay's IP20 front and IP00 terminal area are standard for enclosed panel use — the terminals are live when open, so keep the panel door interlocked. Screw terminals on both main and auxiliary circuits, torque range 3–4.5 N·m for main contacts, 0.8–1.2 N·m for auxiliaries. Accepts 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²) solid or stranded wire with ferrules. ## Mounting & integration notes Fastens directly to a Size S2 contactor — no DIN rail adapter required. Mounting position allows ±135° rotation and ±45° tilt front-to-back on a vertical surface, which gives flexibility in tight cabinets. Side spacing to grounded parts: 6 mm minimum. Dimensions: 118 mm depth × 55 mm width × 105 mm height. The 55 mm width matches the S2 contactor footprint — no extra panel width required. ## Auxiliary contact ratings & environmental limits Auxiliary contacts rated 3 A at 24 V and 2 A at 230 V; DC-13 at 24 V is 1 A. Surge voltage withstand is 6 kV. Operating temperature range –20 to +55 °C; storage/transport –25 to +70 °C. Humidity 0–90% RH non-condensing. Altitude limit 2000 m. Shock resistance 8g / 10 ms per IEC 60068-2-27 — adequate for most industrial floor vibration, but not rated for continuous high-shock environments like stamping presses without additional damping.","metaTitle":"Siemens 3RU7136-4GB0 SIRIUS Thermal Overload Relay, 45 A, CL","metaDescription":"Siemens SIRIUS 3RU7136-4GB0 thermal overload relay, 45 A rated current, CLASS 10 trip, 690 V, 50/60 Hz. Active production. RFQ for lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"118 mm","Width":"55 mm","Height":"105 mm","at 24 V":"3 A","Per Pole":"5.2 W","at 230 V":"2 A","Trip Class":"CLASS 10","On The Front":"IP20","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-20 ... +55 °C","During Transport":"-25 ... +70 °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","Size Of Overload Relay":"S2","For Main Current Circuit":"screw-type terminals","power loss [W] total typical":"15.6 W","Operating Voltage Rated Value":"690 V","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"45 A","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"0 ... 90 %","Surge Voltage Resistance Rated Value":"6 kV","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","Type Of Voltage For Main Current Circuit":"AC/DC","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","shock resistance according to IEC 60068-2-27":"8g / 10 ms","Required Spacing For Grounded Parts At The Side":"6 mm","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","Size Of Contactor Can Be Combined Company-Specific":"S2","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","operational current of auxiliary contacts at DC-13 at 24 V":"1 A","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","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":"15.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"36 ... 45 A","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A, quick: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce78b175845514a056f7c37aaaf86af3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1542622&mlfb=3RU7136-4GB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU7136-4GB0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this overload relay?","answer":"Rated operational current 45 A at 690 V AC/DC, 50/60 Hz. Trip class CLASS 10. Power loss 15.6 W typical. Auxiliary contacts: 3 A at 24 V, 2 A at 230 V."},{"question":"Will the 3RU7136-4GB0 drop into a panel specified for the 3RT7036-1AN20 contactor?","answer":"Yes — this relay is designed for direct contactor mounting onto a Size S2 contactor. The 3RT7036-1AN20 is a SIRIUS Size S2 contactor, so the 3RU7136-4GB0 mounts directly without rewiring, provided the panel layout accommodates the 55 mm width and 118 mm depth."},{"question":"What is the physical size of this relay?","answer":"Depth 118 mm, width 55 mm, height 105 mm. The 55 mm width matches the S2 contactor footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU7136-4GB0","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/3RU7136-4GB0 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}}