{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2038-3XF44-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2038-3XF44-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2038-3XF44-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2038-3XF44-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S2, 3RT2038-3XF44-0LA2, 65 A at 480 V, 110 VDC coil, spring-type terminals, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RT2038-3XF44-0LA2 is a size S2 power contactor rated for 65 A at 480 V and 62 A at 600 V, making it suitable for switching motor loads up to those currents in industrial control panels. The 110 VDC coil is terminated with spring-type terminals, and the main contacts are rated for AC-4 duty at 150 operations per hour maximum. Dimensions are 114 mm height, 55 mm width, and 178 mm depth. ## Coil and Switching Characteristics The DC coil draws 1.5 A inrush peak and operates with an arcing time of 10 to 20 ms and a DC switching time of 30 to 55 ms. The coil pickup threshold is 0.7 of rated voltage, with a full-scale dropout of 1.25. Auxiliary contacts are included. The contactor is rated for 10,000,000 typical mechanical operations.","metaTitle":"Siemens 3RT2038-3XF44-0LA2 SIRIUS Power Contactor, 65 A at 4","metaDescription":"Siemens 3RT2038-3XF44-0LA2 SIRIUS power contactor, size S2, 65 A at 480 V, 110 VDC coil with spring-type terminals. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"178 mm","Width":"55 mm","at DC":"30 ... 55 ms","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","Rated Value":"110 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Type Of Voltage":"DC","at AC-4 maximum":"150 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715","Full-Scale Value":"1.25","For Main Contacts":"18 ... 1","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"1.5 A","Product Designation":"Power contactor","at 24 V rated value":"6 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"15 hp","at 400 V rated value":"3 A","at 480 V rated value":"65 A","at 500 V rated value":"2 A","at 600 V rated value":"62 A","at 690 V rated value":"1 A","Design Of The Product":"With extended operating range","Instantaneous Contact":"2","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"5 hp","at 200/208 V rated value":"20 hp","at 220/230 V rated value":"25 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"60 hp","at AC-2 at AC-3e maximum":"350 1/h","Locked-Rotor Current Peak":"0.8 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"12 mA","at maximum Ith rated value":"35 mm²","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at maximum AC-1 rated value":"35 mm²","at AC in hot operating state":"17.1 W","at AC-2 at 400 V rated value":"37 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"55 A","Substance Prohibitance (Date)":"10/01/2014","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"0.45 A","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","Duration Of Locked-Rotor Current":"230 ms","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":"gG: 160A (690V,100kA), aM: 80A (690V,100kA), BS88: 125A (415V,80kA)","Without Load Current Share Typical":"1 W","closing power of magnet coil at DC":"23 W","holding power of magnet coil at DC":"1 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 14)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"5.7 W","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","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","up to 40 °C according to IEC 60077 rated value":"90 A","up to 70 °C according to IEC 60077 rated value":"75 A","Limited To 1 S Switching At Zero Current Maximum":"1 298 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"898 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"640 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"414 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"333 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","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":"gG: 10 A (500 V, 1 kA)","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$254.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9bdf903cc86364378605aea338074be2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=321615&mlfb=3RT2038-3XF44-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2038-3XF44-0LA2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT2038-3XF44-0LA2 and 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 are the key ratings for 3RT2038-3XF44-0LA2?","answer":"The contactor is rated 65 A at 480 V and 62 A at 600 V, with a 110 VDC coil and spring-type terminals. It is a size S2 SIRIUS power contactor."},{"question":"Will 3RT2038-3XF44-0LA2 drop into a panel specified around 3RT2326-1BK80?","answer":"Both are SIRIUS power contactors, but the 3RT2326-1BK80 is a different frame size and rating; physical fit and wiring should be verified against the panel layout before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2038-3XF44-0LA2","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/3RT2038-3XF44-0LA2 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}}