{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2046-3XB44-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2046-3XB44-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2046-3XB44-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2046-3XB44-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2046-3XB44-0LA2 contactor, size S3, 24 VDC coil with spring-type terminals, 96 A at 480 V, 77 A at 600 V, screw and snap-on mounting for 35 mm DIN rail per DIN EN 60715.","salesMarkdown":"## S3 Frame Contactor for Motor and Resistive Loads The 3RT2046-3XB44-0LA2: Rated for AC-4 maximum switching frequency of 250 operations per hour — this is the plugging/reversing duty limit; for standard AC-3 motor starting the mechanical endurance of 10,000,000 typical cycles is the practical ceiling. ## Coil Drive and Auxiliary Contact Provisions The 24 VDC coil has a pick-up voltage tolerance with an initial value of 0.7 (70% of rated) and a full-scale value of 1.25 (125%) — the drop-out threshold is around 0.7× rated, so a sagging 24 V bus below ~16.8 V will cause the contactor to drop out and interrupt the load circuit. Arcing time is 10... 20 ms, and the DC switching times are 38... 57 ms — the arcing duration matters for coordination with upstream short-circuit protection devices; a 20 ms arc at 480 V can sustain enough energy to trip a fast semiconductor fuse if the contactor is the sole disconnecting means. ## Environmental and Compliance Range The contactor is part of the SIRIUS product brand, which carries IEC/EN 60947-4-1 compliance for contactors and motor starters — documentation for RoHS, REACH, and UL listing is available through the standard Siemens documentation portal; the order code suffix 0LA2 indicates a specific variant with the spring-type coil terminals.","metaTitle":"Siemens 3RT2046-3XB44-0LA2 SIRIUS Contactor, S3 Frame","metaDescription":"Siemens SIRIUS 3RT2046-3XB44-0LA2 contactor, size S3, 96 A at 480 V, 24 VDC coil with spring terminals. Current production. Quoted to order against BOM.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"200 mm","Width":"70 mm","at DC":"38 ... 57 ms","title":"3RT2046-3XB44-0LA2","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","Rated Value":"24 V","description":"traction contactor, AC-3e/AC-3, 95 A, 45 kW / 400 V, 3-pole, 24 V DC, 0.7-1.25* Us, electronic drive, with integrated varistor, auxiliary contacts: 2 NO + 2 NC, main circuit: screw terminal, control and auxiliary circuit: spring-loaded terminal, size: S3, removable auxiliary switch","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Type Of Voltage":"DC","at AC-4 maximum":"250 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":"10 ... 2","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":"S3","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"6.5 A","Product Designation":"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":"20 hp","at 400 V rated value":"3 A","at 480 V rated value":"96 A","at 500 V rated value":"2 A","at 600 V rated value":"77 A","at 690 V rated value":"1 A","Design Of The Product":"With extended operating range","Instantaneous Contact":"2","Side-By-Side Mounting":"Yes","at 1000 V rated value":"37 kW","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"10 hp","at 200/208 V rated value":"30 hp","at 220/230 V rated value":"30 hp","at 460/480 V rated value":"75 hp","at 575/600 V rated value":"75 hp","at AC-2 at AC-3e maximum":"350 1/h","Locked-Rotor Current Peak":"6.5 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"75 mA","at maximum Ith rated value":"50 mm²","Of Main Circuit Rated Value":"8 kV","at AC-3 rated value maximum":"1 000 V","at maximum AC-1 rated value":"50 mm²","at AC in hot operating state":"19.8 W","at AC-2 at 400 V rated value":"45 kW","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"80 A","Substance Prohibitance (Date)":"03/01/2017","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"3.2 A","at AWG cables for main contacts":"2x (10 ... 1/0), 1x (10 ... 2)","Duration Of Locked-Rotor Current":"150 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: 160 A (690 V, 100 kA), aM: 100 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)","Without Load Current Share Typical":"1.8 W","closing power of magnet coil at DC":"76 W","holding power of magnet coil at DC":"1.8 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 ... 16)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"6.6 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":"130 A","up to 70 °C according to IEC 60077 rated value":"95 A","Limited To 1 S Switching At Zero Current Maximum":"1 725 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"1 297 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"946 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"610 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"486 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"1 000 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7d28fa7380658c541019ac8751bc4da6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629918&mlfb=3RT2046-3XB44-0LA2"},"ai":{"faq":[{"question":"What is 3RT2046-3XB44-0LA2's listed depth (200 mm) on this component line?","answer":"The depth is 200 mm, measured from the DIN rail mounting surface to the front of the contactor body. This is the full projection into the panel — the S3 frame is the deepest in the SIRIUS contactor range, so panel depth must accommodate at least 220 mm including wiring clearance."},{"question":"What compliance documentation does this brand provide for 3RT2046-3XB44-0LA2 (RoHS, REACH, UL, IEC)?","answer":"The SIRIUS brand provides IEC/EN 60947-4-1 compliance documentation for contactors. RoHS and REACH declarations are available through the Siemens Industry Online Support portal. UL listing is standard for the SIRIUS contactor family, though the specific UL file number is not listed in this evidence set — confirm the UL mark on the nameplate or request the UL certificate at RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2046-3XB44-0LA2","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/3RT2046-3XB44-0LA2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}