{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4AD0","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2136-4AD0 thermal overload relay, Size S2, Trip Class 10, 690 V rated insulation voltage, contactor mounting, screw-type terminals.","salesMarkdown":"The Siemens 3RU2136-4AD0 is a SIRIUS thermal overload relay, Size S2, with a Trip Class 10 characteristic. It mounts directly to a contactor via the fastening method specified, making it a straightforward add-on for motor protection in a control panel. The relay is rated for an insulation voltage of 690 V and covers motor power ratings up to 7.5 kW at 400 V and 11 kW at 690 V, with corresponding full-load current settings reflected in the auxiliary contact ratings. ## Trip Class 10 and Thermal Protection The thermal overload release design compensates for ambient temperature changes between -40 °C and +60 °C, so the protection curve stays accurate whether the panel is in a conditioned space or a warm machine bay. ## Auxiliary Contact Ratings and Integration The integrated auxiliary switch provides status feedback — the note 'for message Tripped' indicates it signals a fault condition, not just the relay's on/off state. The contact ratings vary by voltage: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. These are the make/break capacities for the signal circuit, so verify the PLC input card's sink current against these values. The relay mounts in any position and uses screw-type terminals for the main circuit, accepting 2x (0.5... 2.5 mm²) solid or stranded wire.","metaTitle":"Siemens 3RU2136-4AD0 SIRIUS Thermal Overload Relay, Trip Cla","metaDescription":"Siemens 3RU2136-4AD0 SIRIUS thermal overload relay, Trip Class 10, Size S2, 690 V rated insulation voltage, contactor mounting. Sourced to order against RFQ.","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":"7.5 kW","at 480 V rated value":"16 A","at 500 V rated value":"7.5 kW","at 600 V rated value":"16 A","at 690 V rated value":"11 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":"16 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":"16 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":"11 ... 16 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=76766&mlfb=3RU2136-4AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4AD0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RU2136-4AD0 and get a price?","answer":"The 3RU2136-4AD0 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the note 'for message Tripped' on the 3RU2136-4AD0?","answer":"The note 'for message Tripped' indicates that the integrated auxiliary switch is wired to signal a fault condition — specifically, that the relay has tripped on overload."},{"question":"What is the depth of the 3RU2136-4AD0?","answer":"The depth is 105 mm, with a width of 55 mm and height of 90 mm."},{"question":"What compliance documentation does Siemens provide for the 3RU2136-4AD0?","answer":"The substance prohibitance date of 10/15/2014 confirms RoHS compliance. The relay carries a rated insulation voltage of 690 V and is designed per IEC standards for thermal overload relays."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4AD0","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/3RU2136-4AD0 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}}