{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3XF44-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3XF44-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3XF44-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3XF44-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S2, 3RT1034-3XF44-0LA2, 110 VDC coil, screw-type terminals, 179 mm depth, 55 mm width, 142 mm height.","salesMarkdown":"The AC-1 maximum switching rate of 1 200 cycles per hour tells you it can keep up with frequent resistive load switching; AC-4 at 250 cycles per hour covers plugging or inching duty. Coil pickup at 70% of rated voltage (77 VDC) and dropout below that threshold means the control circuit needs a clean 110 VDC supply — verify your DC bus isn't sagging under load. Auxiliary contacts are rated at 24 VDC for 10 A, 110 VDC for 1 A, and 220 VDC for 0.3 A — these numbers govern what pilot devices or PLC inputs you can drive directly without an interposing relay. Clearance requirements: 10 mm upwards, downwards, forwards, and at the side. That's tight — you can pack these side-by-side (side-by-side mounting is supported) but keep the 10 mm breathing space for arc flash and heat dissipation. Solid and stranded wire ranges: main circuit accepts 2x (0.75 to 25 mm²) stranded or 2x (0.75 to 16 mm²) solid; control circuit takes 2x (0.25 to 2.5 mm²) solid. Strip length follows standard practice for screw terminals — aim for 8-10 mm stripped and torque to the manufacturer's spec.","metaTitle":"Siemens 3RT1034-3XF44-0LA2 SIRIUS Power Contactor, Size S2,","metaDescription":"Siemens SIRIUS 3RT1034-3XF44-0LA2 power contactor, Size S2, 110 VDC coil, screw terminals, 179 mm depth. Current production stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"179 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"55 mm","at DC":"20 ... 30 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":"110 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"250 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":"18.5 kW","at 690 V rated value":"10 kW","Instantaneous Contact":"2","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":"15 kW","at AC-4 at 400 V rated value":"29 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=25614&mlfb=3RT1034-3XF44-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3XF44-0LA2/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does the 3RT1034-3XF44-0LA2 accept on the main terminals?","answer":"Main circuit screw terminals accept 2x (0.75 to 25 mm²) stranded or 2x (0.75 to 16 mm²) solid. Control circuit takes 2x (0.25 to 2.5 mm²) solid."},{"question":"Where can I buy 3RT1034-3XF44-0LA2 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote."},{"question":"Will 3RT1034-3XF44-0LA2 drop into a panel wired for 3RT1044-1FB46?","answer":"The 3RT1044-1FB46 is a larger Size S3 frame; the 3RT1034-3XF44-0LA2 is Size S2. Panel cutouts and DIN rail spacing differ — verify footprint before substituting without rewiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3XF44-0LA2","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/3RT1034-3XF44-0LA2 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}}