{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3XF44-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3XF44-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3XF44-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3XF44-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-3XF44-0LA2, 110 V DC coil with integrated varistor, screw terminals, 45 mm width, DIN rail mount.","salesMarkdown":"The 110 V DC coil includes a built-in varistor surge suppressor, so you don't need to add an external snubber for DC switching transients. The AC motor ratings give you the real-world switching capacity: at 460/480 V the contactor handles 15 hp, at 575/600 V it handles 20 hp — those are the numbers that matter when you're sizing for a pump or conveyor. For DC switching, the contactor is rated 10 A at 24 V, 1 A at 110 V, and 0.3 A at 220 V; the DC-13 duty curve governs, so if you're switching solenoids or DC brake coils, stay inside those curves. ## Coil pickup and drop-out — what to expect The coil picks up at 70 % of rated voltage (0.7 x 110 V = 77 V DC) and drops out at 125 % (1.25 x 110 V = 137.5 V DC). That's a standard DC coil curve; the varistor across the coil absorbs the back-EMF when you de-energize it, which keeps the switching noise off your 24 V DC control bus. Ambient temperature range during operation is -40 to +70 °C, so it'll sit in a hot panel next to a drive or in a cold warehouse without trouble. ## Wiring and clearances Main circuit terminals are screw-type, accepting 2 x (0.25 to 2.5 mm²) solid or stranded, or up to 2 x 10 mm². The auxiliary contact block has 2 normally-open instantaneous contacts. The depth is 150 mm, height 119 mm.","metaTitle":"Siemens 3RT1026-3XF44-0LA2 SIRIUS Power Contactor, 110 V DC","metaDescription":"Siemens 3RT1026-3XF44-0LA2 SIRIUS power contactor, size S0, 110 V DC coil with varistor, screw terminals, 45 mm width, current production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"150 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"119 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","At The Side":"10 mm","Rated Value":"110 V","Initial Value":"0.7","Type Of Voltage":"DC","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","Full-Scale Value":"1.25","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 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":"3 hp","at 400 V rated value":"3 A","at 500 V rated value":"11 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"2","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"2 hp","at 200/208 V rated value":"7.5 hp","at 220/230 V rated value":"7.5 hp","at 460/480 V rated value":"15 hp","at 575/600 V rated value":"20 hp","Of Main Circuit Rated Value":"6 kV","at AC-4 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"05/01/2012","Design Of The Surge Suppressor":"with varistor","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","closing power of magnet coil at DC":"6 W","holding power of magnet coil at DC":"5.4 W","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (24 ... 14)","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","Product Function Short Circuit Protection":"No","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Type Of Voltage Of The Control Supply Voltage":"DC","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","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=145265&mlfb=3RT1026-3XF44-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3XF44-0LA2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1026-3XF44-0LA2 and how do I get a price?","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 3RT1026-3XF44-0LA2's listed depth?","answer":"The depth is 150 mm, width 45 mm, height 119 mm — fits standard S0-size contactor footprints."},{"question":"What compliance documentation does this brand provide for 3RT1026-3XF44-0LA2?","answer":"The part is RoHS-compliant with a substance prohibitance date of 05/01/2012. REACH, UL, and IEC documentation is standard for the SIRIUS series, though specific certs are not listed in this record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3XF44-0LA2","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/3RT1026-3XF44-0LA2 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}}