{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4DD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4DD0","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4DD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4DD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2136-4DD0 thermal overload relay, Size S2, Class 10, screw terminals, integrated auxiliary switch, 22 kW at 690 V AC-3e.","salesMarkdown":"The thermal bimetallic element tracks motor heating, so it responds to actual RMS current, not just peak. It mounts directly to a contactor via the fastening method (contactor mounting), saving panel space and wiring. The integrated auxiliary switch provides a separate signal path for the tripped state — the Note for message \"Tripped\" on the device face confirms the relay has operated. ## Motor power coverage across common voltages This relay covers motor loads up to 11 kW at 400 V, 15 kW at 500 V, and 22 kW at 690 V in AC-3e duty. The auxiliary contact ratings span control voltages: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. That means the N.O. auxiliary can switch a PLC input or a contactor coil at the same voltage as the motor circuit without an interposing relay — a common panel simplification. Mounts in any position directly onto the contactor — no separate DIN-rail footprint needed. Main circuit connections use screw-type terminals accepting 2× (0.5 to 2.5 mm²) solid or stranded conductors. The screwdriver shaft diameter is 5 to 6 mm, Pozidriv PZ2 tip. Main contact screws are M6. Depth is 105 mm, width 55 mm, height 90 mm. The temperature compensation range is -40 to +60 °C, meaning the trip curve stays accurate across that ambient span without manual adjustment.","metaTitle":"Siemens 3RU2136-4DD0 SIRIUS Thermal Overload Relay, Class 10","metaDescription":"Siemens 3RU2136-4DD0 SIRIUS thermal overload relay, Size S2, Class 10 trip, 22 kW at 690 V. Current lifecycle stage, sourced to order. Request RFQ for pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"Tripped\"","Depth":"105 mm","Width":"55 mm","Height":"90 mm","at 24 V":"2 A","at 60 V":"0.3 A","Per Pole":"3.5 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","Trip Class":"CLASS 10","Rated Value":"690 V","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"thermal overload relay","at 400 V rated value":"11 kW","at 480 V rated value":"25 A","at 500 V rated value":"15 kW","at 600 V rated value":"25 A","at 690 V rated value":"22 kW","Size Of Overload Relay":"S2","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-40 ... +60 °C","Design Of Screwdriver Shaft":"Diameter 5 ... 6 mm","Size Of The Screwdriver Tip":"Pozidriv PZ 2","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/15/2014","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"25 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","For Auxiliary And Control Circuit":"spring-loaded terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Between Auxiliary And Auxiliary Circuit":"415 V","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"8g / 11 ms","operational current at AC-3e at 400 V rated value":"25 A","Size Of Contactor Can Be Combined Company-Specific":"S2","contact rating of auxiliary contacts according to UL":"B600 / R300","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 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":"10.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"18 ... 25 A","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"6A (SCC less than equal to 0.5 kA; U less than equal to 260V)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c063c21d45bb79954523f24f487aef5c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=348988&mlfb=3RU2136-4DD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4DD0/alternatives.json"},"ai":{"faq":[{"question":"What is the motor power rating for 3RU2136-4DD0 at 400 V?","answer":"At 400 V rated value, the motor power is 11 kW in AC-3e duty. At 690 V it reaches 22 kW."},{"question":"What does the Class 10 trip class mean for this overload relay?","answer":"Class 10 means the relay must trip within 10 seconds at 7.2× the set current. This protects standard induction motors during locked-rotor conditions without tripping on normal starting current."},{"question":"How do I get current pricing and availability for 3RU2136-4DD0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the auxiliary contact rating at 24 VDC?","answer":"The auxiliary switch is rated 2 A at 24 V. At 120 V it is 3 A, and at 230 V it is 2 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4DD0","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/3RU2136-4DD0 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}}