{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4BD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4BD0","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4BD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4BD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2136-4BD0 thermal overload relay, CLASS 10, Size S2, 690 V rated, screw-type terminals, contactor mounting.","salesMarkdown":"## CLASS 10 Trip – Motor Protection Coordination The 3RU2136-4BD0: Trip Class CLASS 10 means the relay will trip within 10 seconds at 7.2× the current setting — fast enough to protect standard induction motors during a stall or locked-rotor event without nuisance tripping on normal starting inrush. This is the typical choice for pump, fan, and conveyor drives where the acceleration time is under 10 seconds. Rated voltage is 690 V, with motor power ratings of 7.5 kW at 400 V, 11 kW at 500 V, and 15 kW at 690 V. The current ratings at 480 V and 600 V are both 20 A, giving a clean selection point for North American 480 V and 600 V systems. ## Mounting and Wiring – Contactor Integration Mounts directly onto the contactor — no separate DIN-rail footprint needed. The M6 main contact terminals accept 2× (0.5…2.5 mm²) solid or stranded wire. Screw-type terminals with a Pozidriv PZ 2 tip, shaft diameter 5…6 mm, make for repeatable torque without cam-out. Size S2 dimensions: 55 mm wide, 90 mm high, 105 mm deep. Fits any mounting position; temperature compensation is active from -40 to +60 °C, so the trip curve stays accurate across the panel ambient range. ## Auxiliary Contact Ratings – Control Circuit Sizing The integrated auxiliary switch provides a 'Tripped' signal contact rated at 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.75 A at 690 V. For DC control: 0.3 A at 60 V, 0.22 A at 110/125 V, and 0.11 A at 220 V. These cover most PLC input and relay coil loads directly. ## Compliance and Environmental Substance prohibitance date 10/15/2014 confirms RoHS and REACH compliance for the European market. Operating temperature -40…+70 °C, storage and transport -55…+80 °C. The thermal overload release design is bimetallic — no electronic drift over time.","metaTitle":"Siemens 3RU2136-4BD0 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU2136-4BD0 SIRIUS thermal overload relay, CLASS 10, S2 size, 690 V rated. Active production. Sourced per RFQ. RoHS/REACH compliant.","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","title":"3RU2136-4BD0","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","at 690 V":"0.75 A","Trip Class":"CLASS 10","Rated Value":"690 V","description":"Overload relay 14...20 A Thermal For motor protection Size S2, Class 10 Contactor mounting Main circuit: Screw Auxiliary circuit: spring-type terminal Manual-Automatic-Reset","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":"7.5 kW","at 480 V rated value":"20 A","at 500 V rated value":"11 kW","at 600 V rated value":"20 A","at 690 V rated value":"15 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":"20 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":"20 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":"14 ... 20 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,"stockQuantity":0,"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=147838&mlfb=3RU2136-4BD0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4BD0","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/3RU2136-4BD0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}