{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU5136-4DB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU5136-4DB0","canonicalUrl":"https://aoctrl.com/siemens/3RU5136-4DB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU5136-4DB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU5136-4DB0, 18-25 A adjustable, CLASS 10, 690 V, 50-60 Hz, screw terminals, contactor mounting.","salesMarkdown":"Its adjustable current response range is 18 to 25 A, and it's rated for a rated operational current of 25 A at 690 V, 50-60 Hz. It mounts directly onto a SIRIUS S2-size contactor (company-specific combination size S2), so it's a matched set with the contactor — no separate bracket or wiring harness needed for the power circuit. Mounting is via contactor mounting — it snaps onto the SIRIUS S2 contactor. The mounting position allows a vertical mounting surface with ±135° rotation and ±45° tilt front-to-back, giving flexibility in tight panels. Dimensions: 105 mm high, 55 mm wide, 118 mm deep. The width is the key panel-space number — at 55 mm, it's a single-unit-wide footprint on the DIN rail when combined with its contactor. Requires 6 mm spacing to grounded parts at the side for proper heat dissipation and clearance. Main circuit terminals are screw-type, top and bottom, accepting 2×(0.5-1.5 mm²) solid/stranded or 2×(0.75-2.5 mm²) finely stranded with ferrules, or AWG 2×(18-3) and 1×(18-1). Tightening torque is 3-5 N·m. Auxiliary/control circuit terminals are also screw-type, accepting 2×(20-16) AWG or 2×(18-14) AWG. For short-circuit protection of the auxiliary switch, use a gL/gG 6 A fuse or a quick-acting 10 A fuse. Relative humidity from 0 to 100% is allowed during operation — no derating needed for high-humidity environments. Shock resistance per IEC 60068-2-27 is 8g for 10 ms. Installation altitude is limited to 2000 m above sea level without derating. RoHS compliance date is July 1, 2006 — the part meets the original RoHS directive. Surge voltage resistance is 6 kV, and insulation voltage at pollution degree 3 is 690 V AC.","metaTitle":"Siemens 3RU5136-4DB0 SIRIUS Thermal Overload Relay, 18-25 A,","metaDescription":"Siemens 3RU5136-4DB0 SIRIUS thermal overload relay, 18-25 A adjustable range, CLASS 10 trip, 690 V, 50-60 Hz. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"118 mm","Width":"55 mm","title":"3RU5136-4DB0","Height":"105 mm","at 24 V":"1 A","Per Pole":"3.5 W","at 110 V":"0.22 A","at 230 V":"2 A","Trip Class":"CLASS 10","description":"Overload relay 18...25 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":"25 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":"10.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"18 ... 25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/04d61c6334e3c98fbcfae9f0980a424d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=621235&mlfb=3RU5136-4DB0"},"ai":{"faq":[{"question":"What is the adjustable current range of the 3RU5136-4DB0?","answer":"The adjustable current response range is 18 to 25 A, with a rated operational current of 25 A."},{"question":"What trip class is the 3RU5136-4DB0?","answer":"It is CLASS 10, meaning it trips within 10 seconds at 7.2× the set current — suitable for standard motor protection."},{"question":"What contactor does the 3RU5136-4DB0 mount to?","answer":"It mounts directly onto a SIRIUS S2-size contactor (company-specific combination size S2) via contactor mounting — no separate bracket needed."},{"question":"What compliance documentation does the 3RU5136-4DB0 have?","answer":"RoHS compliance date is July 1, 2006. The part also carries rated surge voltage resistance of 6 kV and insulation voltage of 690 V AC at pollution degree 3."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU5136-4DB0","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/3RU5136-4DB0 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}}