{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4JB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4JB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4JB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4JB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2136-4JB0-ZX95 thermal overload relay, S2 frame, Class 10, 690 V rated, 30 kW at 400 V, contactor mounting.","salesMarkdown":"It's a Class 10 device, meaning it will trip within 10 seconds at 7.2× the current setting — that's the standard for standard-duty motor starting, not for high-inertia loads that need a Class 20 or 30. Rated for 690 V and sized for motor loads up to 30 kW at 400 V, 45 kW at 500 V, or 55 kW at 690 V. The auxiliary contacts handle 2 A at 24 V and 230 V, 3 A at 120 V, and 1 A at 400 V — enough for signalling back to a PLC input or a contactor coil. The note on this variant reads \"for message 'Tripped'\" — that means the auxiliary contact configuration is wired to give a positive signal when the relay has tripped, not just a status change. That's useful for a remote alarm or a PLC input that needs a definite state on trip. Mounts directly onto a Siemens contactor — the fastening method is \"contactor mounting\", so it clips onto the front of the matching S2 contactor (like the 3RT1036 series). No separate DIN-rail footprint needed; it rides on the contactor, saving panel width. Dimensions are 55 mm wide, 90 mm high, 105 mm deep — that's the depth from the contactor face to the back of the relay. The main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. Use a PZ2 Pozidriv screwdriver with a 5–6 mm shaft diameter. Temperature-compensated from -40 to +60 °C, so it won't drift on a hot panel door or in a cold warehouse.","metaTitle":"Siemens 3RU2136-4JB0-ZX95 SIRIUS Thermal Overload Relay, Cla","metaDescription":"Siemens SIRIUS 3RU2136-4JB0-ZX95 thermal overload relay, Class 10, S2 size. Rated 690 V, 30 kW at 400 V. Current production. Sourced to order. RFQ for lead time.","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":"5.2 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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"thermal overload relay","at 400 V rated value":"30 kW","at 480 V rated value":"65 A","at 500 V rated value":"45 kW","at 600 V rated value":"65 A","at 690 V rated value":"55 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":"65 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","For Auxiliary And Control Circuit":"screw-type 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 ... 16), 2x (18 ... 14)","Of The Auxiliary And Control Contacts":"M3","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), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","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","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3e at 400 V rated value":"65 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":"15.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"54 ... 65 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=754389&mlfb=3RU2136-4JB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4JB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What does the note \"for message 'Tripped'\" mean?","answer":"It means the auxiliary contact is wired to give a positive signal specifically when the relay has tripped, not just a change of state. That's useful for a remote alarm or a PLC input that needs a definite trip indication."},{"question":"Will this relay drop into a panel specified around a 3RT1036-1AB00 contactor?","answer":"Yes, it's designed for contactor mounting onto an S2-frame contactor like the 3RT1036 series. No rewiring of the main circuit is needed if the contactor is already an S2 — the relay clips on and the main terminals align. Verify the auxiliary contact wiring matches your control circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4JB0-ZX95","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/3RU2136-4JB0-ZX95 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}}