{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2047-1XB40-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2047-1XB40-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT2047-1XB40-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2047-1XB40-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, S3 frame contactor, 3RT2047-1XB40-0LA2, 24 V DC coil, screw-type terminals, 96 A at 480 V AC, 99 A at 600 V AC, auxiliary switch included, screw and snap-on DIN rail mounting.","salesMarkdown":"The main contacts carry 96 A at 480 V and 99 A at 600 V, which means it handles moderate-to-high current motor circuits in North American 480 V or 600 V distribution systems without requiring an external contactor upgrade. The auxiliary contact switching capacity is specified per DC voltage: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. These are the DC-13 ratings for the auxiliary circuit — useful for pilot duty or PLC interposing relays where the load is inductive. The contactor occupies a 70 mm width, 140 mm height, and 152 mm depth envelope. These are the minimum air gaps to adjacent metal or grounded surfaces for safe arc quenching. The coil connection uses screw-type terminals accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. The main contact terminals follow the same wire range. ## Performance and environmental limits The coil draws a 6.5 A inrush peak at 24 V DC. The dropout voltage is 0.7 times the rated value. The arcing time for the main contacts is 10 to 20 ms, and the DC operating time (coil pickup to main contact closure) is 38 to 57 ms. The maximum switching frequency at AC-4 duty (severe motor starting) is 200 operations per hour.","metaTitle":"Siemens 3RT2047-1XB40-0LA2 SIRIUS Contactor, 24 VDC, 96 A at","metaDescription":"Siemens SIRIUS contactor 3RT2047-1XB40-0LA2, 24 VDC coil, S3 frame. Rated 96 A at 480 V AC, 99 A at 600 V. Screw terminals, DIN rail mount. Current lifecycle stage. Sourced to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Width":"70 mm","at DC":"38 ... 57 ms","title":"3RT2047-1XB40-0LA2","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, 110 A, 55 kW / 400 V, 3-pole, 24 V DC, 0.7-1.25* Us, electronic drive, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"DC","at AC-4 maximum":"200 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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"6.5 A","Product Designation":"Contactor","at 24 V rated value":"10 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":"99 A","at 690 V rated value":"1 A","Design Of The Product":"With extended operating range","Instantaneous Contact":"1","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":"40 hp","at 460/480 V rated value":"75 hp","at 575/600 V rated value":"100 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":"23.7 W","at AC-2 at 400 V rated value":"55 kW","at AC-3e rated value maximum":"1 000 V","at AC-4 at 400 V rated value":"97 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":"screw-type terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gG: 200A (690V,100kA), aM: 100A (690V,100kA), BS88: 160A (415V,80kA)","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":"Screw-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), 2x (18 ... 14)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"7.9 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), 2x (0.75 ... 2.5 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 %","with high demand rate according to SN 31920":"73 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","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":"1 960 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"1 502 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"1 095 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"707 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"562 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=629945&mlfb=3RT2047-1XB40-0LA2"},"ai":{"faq":[{"question":"What is the mounting footprint of this contactor?","answer":"The envelope is 70 mm wide, 140 mm high, and 152 mm deep. It mounts on a 35 mm DIN rail per DIN EN 60715 with screw or snap-on fastening. Minimum clearance is 10 mm upward, 20 mm forward, 10 mm downward, and 10 mm at the side."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2047-1XB40-0LA2","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/3RT2047-1XB40-0LA2 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}}