{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-3XB40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-3XB40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-3XB40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-3XB40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S2, 3RT1035-3XB40-0LA2, 24 VDC coil, 22 kW at 500 V AC-3, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens SIRIUS 3RT1035-3XB40-0LA2 is a size S2 power contactor rated to switch a 22 kW motor at 500 V in AC-3 duty — the rating that matters for standard three-phase induction motor loads. The 24 VDC coil pulls in at 0.7 of rated voltage and holds with a typical dropout below 18 V. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm at the side, 10 mm downwards — standard for the S2 frame. The 55 mm width and 142 mm height fit a typical 35 mm DIN-rail footprint.","metaTitle":"Siemens SIRIUS 3RT1035-3XB40-0LA2 Power Contactor, S2, 24 VD","metaDescription":"Siemens SIRIUS 3RT1035-3XB40-0LA2 power contactor, size S2, 24 VDC coil, 22 kW at 500 V AC-3. Active production. Screw terminals, DIN rail mount. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"55 mm","at DC":"20 ... 25 ms","Height":"142 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"2x (0.75 ... 25 mm²)","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"10 mm","Rated Value":"24 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"600 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.25","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.75 ... 16 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"22 kW","at 690 V rated value":"11.4 kW","Instantaneous Contact":"0","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at maximum AC-1 rated value":"16 mm²","at AC-2 at 400 V rated value":"18.5 kW","at AC-4 at 400 V rated value":"35 A","Substance Prohibitance (Date)":"05/01/2012","Design Of The Surge Suppressor":"with varistor","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","closing power of magnet coil at DC":"15 W","holding power of magnet coil at DC":"11 W","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=217734&mlfb=3RT1035-3XB40-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-3XB40-0LA2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1035-3XB40-0LA2 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no stock or price figures are published here."},{"question":"What is the closest functional second-source for 3RT1035-3XB40-0LA2?","answer":"The 3RT1044-1FB46 is a larger-frame SIRIUS contactor (size S3) with a different coil voltage and terminal arrangement — it will not drop into a panel wired for the S2 footprint without rewiring the main power circuit and adjusting the DIN-rail layout."},{"question":"What is 3RT1035-3XB40-0LA2's listed depth?","answer":"The depth is 130 mm, measured from the mounting surface to the front of the contactor."},{"question":"What compliance documentation does this brand provide for 3RT1035-3XB40-0LA2?","answer":"Siemens SIRIUS contactors typically carry CE, UL, CSA, and CCC approvals, plus RoHS and REACH declarations. Specific certification marks for this order code should be verified against the nameplate or the manufacturer's declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-3XB40-0LA2","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/3RT1035-3XB40-0LA2 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}}