{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1136-4DB0-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1136-4DB0-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RU1136-4DB0-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4DB0-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, Size S2, CLASS 10, screw-type terminals, IP20 front, ATEX, 118 mm depth.","salesMarkdown":"The Siemens 3RU1136-4DB0-ZW96 is a SIRIUS thermal overload relay in the Size S2 frame, designed to protect motors against overcurrent by tracking the thermal load and tripping a contactor when the motor draws excessive current over time. The relay mounts directly onto a contactor (contactor mounting) and accepts screw-type terminals for both the main power circuit and the auxiliary/control circuit, which is the conventional wiring method in most industrial control panels. The main circuit terminals accept solid conductors from 2x (0.5... 1.5 mm²) up to 2x (0.75... 2.5 mm²), and stranded conductors from 2x (0.75... 25 mm²) up to 0.75... 35 mm² — that range covers most motor feeder cables from fractional-horsepower up to about 15 kW at 400 V, so you can land the motor leads without adapters. The auxiliary contacts are rated for switching at various control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V — these are the signal contacts that tell the PLC or starter circuit whether the relay has tripped, and the ratings confirm they handle standard 24 VDC and 120/230 VAC control circuits without derating. The front face carries an IP20 rating, meaning finger-safe against accidental contact but not sealed against dust or moisture — standard for inside a panel where the enclosure provides the environmental seal. This relay mounts onto a contactor (contactor mounting) and fits the SIRIUS S2 platform, so it mates directly with the corresponding S2 contactor without additional brackets or wiring adapters — the power connections line up, and the auxiliary contacts snap into the control circuit. Clearance requirements are tight: 0 mm upwards, forwards, backwards, and downwards, with only 6 mm needed at the side — meaning it can be packed tightly against adjacent components on a DIN rail or panel, saving space in dense control cabinets. It withstands 100 % relative humidity during operation, so condensation inside a non-sealed panel won't cause false trips — important for washdown areas or outdoor cabinets. The relay carries ATEX protection type DMT 98 ATEX G 001, meaning it is certified for use in potentially explosive gas atmospheres — this is a key spec for chemical, oil & gas, or grain-handling applications where a motor overload could ignite a surrounding atmosphere. Surge voltage resistance is rated at 6 kV, which aligns with IEC 60947-1 overvoltage category III for fixed installations — it will survive switching transients from contactors and drives without failing. Shock resistance is 8g for 10 ms, enough to handle vibration from nearby motors or conveyor systems without the relay's bimetal strip falsely tripping.","metaTitle":"Siemens 3RU1136-4DB0-ZW96 SIRIUS Thermal Overload Relay, CLA","metaDescription":"Siemens 3RU1136-4DB0-ZW96 SIRIUS thermal overload relay, Size S2, CLASS 10 trip, screw terminals, IP20 front, ATEX, current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"118 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"55 mm","Height":"105 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Per Pole":"3.5 W","Stranded":"2x (0.75 ... 25 mm²), 0.75 ... 35 mm²","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","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 10","At The Side":"6 mm","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","Shock Resistance":"8g / 10 ms","Mounting Position":"with vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back","Product Brand Name":"SIRIUS","Type Of Protection":"DMT 98 ATEX G 001","Product Designation":"thermal overload relay","Size Of Overload Relay":"S2","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"07/01/2006","at AWG cables for main contacts":"2x (18 ... 3), 1x (18 ... 1)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Size Of Contactor Can Be Combined Company-Specific":"S2","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=186690&mlfb=3RU1136-4DB0-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1136-4DB0-ZW96/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RU1136-4DB0-ZW96?","answer":"The closest functional peer is the 3RT1036-1AB00, which is the corresponding SIRIUS contactor that this relay mounts onto. They share the S2 frame size and the same mounting footprint, so if your panel was designed around the 3RT1036-1AB00 contactor, the 3RU1136-4DB0-ZW96 relay will drop in without rewiring."},{"question":"What is the depth of 3RU1136-4DB0-ZW96?","answer":"The depth is 118 mm, which is the dimension from the mounting surface to the front of the relay — important for enclosure depth clearance."},{"question":"What solid conductor sizes does the main circuit accept?","answer":"The main circuit screw terminals accept solid conductors from 2x (0.5... 1.5 mm²) up to 2x (0.75... 2.5 mm²). For stranded conductors, the range is 2x (0.75... 25 mm²) up to 0.75... 35 mm²."},{"question":"Will 3RU1136-4DB0-ZW96 drop into a panel specified around 3RT1036-1AB00?","answer":"Yes, because both parts are SIRIUS S2 size and the relay mounts directly onto the contactor. The power terminals line up, and the auxiliary contacts connect to the control circuit without adapters."},{"question":"What compliance documentation does this relay carry?","answer":"It carries ATEX certification (DMT 98 ATEX G 001) for explosive gas atmospheres, IP20 front protection, and 6 kV surge voltage resistance. The substance prohibitance date of 07/01/2006 indicates RoHS compliance from that date."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1136-4DB0-ZW96","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/3RU1136-4DB0-ZW96 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}}