{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2136-4DB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2136-4DB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RU2136-4DB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4DB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, size S2, 25 A rated operational current, Trip Class 10, contactor mounting, screw terminals, 3RU2136-4DB0-ZX95.","salesMarkdown":"The Siemens SIRIUS 3RU2136-4DB0-ZX95 is a thermal overload relay sized S2, rated 25 A operational current, with Trip Class 10. Rated operational current is 25 A at both 480 V and 600 V, so it handles the same load regardless of whether your motor is on a 480 V or 600 V distribution. The operating voltage rating of 690 V covers the main circuit voltage for most industrial motor feeders. The auxiliary contact ratings are given per voltage: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V — these are the switching capacities for the trip-indication contact, so confirm your control voltage matches one of these curves. The relay is temperature-compensated from -40 °C to +60 °C, meaning the trip point stays accurate across the typical panel ambient range. Fastening method is contactor mounting — it clips directly onto the matching SIRIUS contactor, no DIN rail required for the relay itself. Main circuit terminals are screw-type, accepting 2× (0.5…1.5 mm²) or 2× (0.75…2.5 mm²) solid or stranded copper, or AWG 18…2 for two conductors. The auxiliary/control circuit also uses screw terminals. Screwdriver shaft diameter 5…6 mm, Pozidriv PZ 2 tip. Mounting position is any, which helps in tight enclosures. Dimensions: 55 mm wide, 90 mm high, 105 mm deep.","metaTitle":"Siemens 3RU2136-4DB0-ZX95 SIRIUS thermal overload relay, 25","metaDescription":"Siemens SIRIUS 3RU2136-4DB0-ZX95 thermal overload relay, 25 A rated operational current, Trip Class 10, contactor mounting. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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","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 480 V rated value":"25 A","at 600 V rated value":"25 A","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","Operating Voltage Rated Value":"690 V","Substance Prohibitance (Date)":"15.10.2014","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":"screw-type terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","reference code acc. to IEC 81346-2":"F","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","shock resistance acc. to IEC 60068-2-27":"8g / 11 ms","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","touch protection on the front acc. to IEC 60529":"finger-safe, for vertical contact from the front","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","Size Of Contactor Can Be Combined Company-Specific":"S2","protection class IP on the front acc. to IEC 60529":"IP20","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=176255&mlfb=3RU2136-4DB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2136-4DB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RU2136-4DB0-ZX95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the Trip Class and what does it mean?","answer":"Trip Class 10 means the relay will trip within 10 seconds at 7.2× the current setting — standard for protecting motors that start under normal load without prolonged inrush."},{"question":"What does the note 'for message Tripped' refer to?","answer":"The built-in auxiliary switch includes a contact labeled for the 'Tripped' message — it closes when the relay has operated, giving a remote signal to a PLC or annunciator."},{"question":"Will 3RU2136-4DB0-ZX95 drop into a panel designed for 3RU2116-1FC1?","answer":"Both are SIRIUS S2 size overload relays with the same contactor-mounting footprint, so the mechanical fit is the same. The difference is the current range: 3RU2136-4DB0-ZX95 is rated 25 A, while 3RU2116-1FC1 covers a lower range. Check your motor FLA before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2136-4DB0-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/3RU2136-4DB0-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}}