{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2046-3XF44-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2046-3XF44-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2046-3XF44-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2046-3XF44-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2046-3XF44-0LA2 contactor, Size S3, 110 V DC coil, spring-type terminals, screw and snap-on mounting on 35 mm DIN rail, 200 mm depth, 70 mm width, 140 mm height.","salesMarkdown":"## What this 110 V DC coil contactor fits The 3RT2046-3XF44-0LA2: This is a Siemens SIRIUS Size S3 contactor with a 110 V DC coil — not the common 24 V DC or 230 V AC version. The DC coil draws a 1.5 A inrush peak at the 110 V rated value, so the control transformer or DC supply needs to handle that surge without dropping below the pick-up voltage. The spring-type terminals on the magnet coil save a screwdriver turn per wire — useful when you're wiring a dozen of these in a row. Mechanical life is 10 million operations typical, and the AC-4 switching rate maxes at 250 operations per hour — that's the heavy-duty jogging/reversing ceiling. For a conveyor or hoist application cycling faster than that, you'd need to step up to a larger frame or add a soft starter to reduce arcing stress. ## Mounting and panel fit — DIN rail plus screws Fastening method is screw and snap-on onto 35 mm standard mounting rail per DIN EN 60715. The dual option means you can screw it to a backplate in high-vibration spots where the DIN rail clip alone might rattle loose, or snap it on for quick assembly in a standard panel. Mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward and backward — handy when the enclosure forces an odd angle. Clearance distances are 10 mm upwards, 10 mm downwards, 10 mm at the side, and 20 mm forwards. Those are the minimum air gaps for arc flash containment and heat dissipation — pack them tighter and the contactor's switching life drops. The dimensions are 200 mm depth, 70 mm width, 140 mm height, so it fits a standard 200 mm deep enclosure with room for wiring ducts. ## Lifecycle and sourcing — active, no obsolescence worry Operating temperature range is -40 to +70 °C, storage range -55 to +80 °C. That covers unheated outdoor cabinets in cold climates and warm panels near ovens. The DC operating time is 38 to 57 ms — slower than an AC coil but consistent, so factor it into your sequence timing if this contactor is in a safety circuit or a staged start-up.","metaTitle":"Siemens 3RT2046-3XF44-0LA2 SIRIUS Contactor, 110 V DC Coil","metaDescription":"Siemens SIRIUS 3RT2046-3XF44-0LA2 contactor, Size S3, 110 V DC coil, spring-type terminals, DIN rail mount. Active production. Quoted to order. Request RFQ.","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":"3RT2046-3XF44-0LA2","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","Rated Value":"110 V","description":"traction contactor, AC-3e/AC-3, 95 A, 45 kW / 400 V, 3-pole, 110 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":"1.5 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":"2.7 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"15 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":"1.1 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 W","closing power of magnet coil at DC":"64 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 ... 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=629921&mlfb=3RT2046-3XF44-0LA2"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2046-3XF44-0LA2","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/3RT2046-3XF44-0LA2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}