{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2047-1NP34","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2047-1NP34","canonicalUrl":"https://aoctrl.com/siemens/3RT2047-1NP34","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2047-1NP34","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT2047-1NP34, S3 frame size, 175-280 V AC coil, screw-type terminals, 70 mm width, 140 mm height, 195 mm depth.","salesMarkdown":"## Part identity and deployment context It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with a mounting position that allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward, giving panel builders flexibility in tight enclosures. Its coil draws 3.5 VA at both 50 Hz and 60 Hz, with an inrush current peak of 65 A — a figure to note when sizing control transformers, especially if multiple contactors pull in simultaneously. The coil operates on a rated value of 175-280 V AC. The screw-type terminals for the magnet coil accept solid conductors from 2.5 to 16 mm² and stranded from 6 to 70 mm², with auxiliary contact wiring accepting 2x (0.5-1.5 mm²) solid or stranded and 2x (0.75-2.5 mm²). Switching frequency ratings tell you the thermal limit of the contactor under different load types: AC-1 (resistive) allows up to 900 cycles per hour, AC-3 (standard motor starting) 850 cycles/h, AC-2 (slip-ring motor) 350 cycles/h, and AC-4 (plugging/inching) 200 cycles/h. For a conveyor or pump running a normal start/stop cycle, the AC-3 rate of 850 cycles/h is ample; if your application involves frequent reversing or jogging, the AC-4 limit of 200 cycles/h governs the real duty cycle. For DC switching, the contactor carries breaking capacities of 6 A at 24 V rated value, 2 A at 48 V, 2 A at 60 V, and 1 A at 110 V. These are the maximum currents the main contacts can interrupt under DC inductive loads — DC arcs are harder to extinguish than AC, so these values are significantly lower than the AC motor ratings. If you need to switch a DC motor or solenoid bank, stay within these limits. ## Dimensions and wiring clearances The contactor measures 70 mm wide, 140 mm high, and 195 mm deep. That 195 mm depth includes the coil terminals and arc chamber — verify it fits your enclosure depth, especially if a duct cover or door-mounted device intrudes.","metaTitle":"Siemens 3RT2047-1NP34 SIRIUS Power Contactor, S3 Frame","metaDescription":"Siemens 3RT2047-1NP34 SIRIUS power contactor, S3 frame, 175-280V AC coil, screw terminals. AC-3 rated 850 cycles/h. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"195 mm","Solid":"2.5 ... 16 mm²","Width":"70 mm","at AC":"38 ... 57 ms","at DC":"38 ... 57 ms","title":"3RT2047-1NP34","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"6 ... 70 mm²","at 50 Hz":"3.5 VA","at 60 Hz":"3.5 VA","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","Rated Value":"175 ... 280 V","description":"power contactor, AC-3e/AC-3, 110 A, 55 kW / 400 V, 3-pole, 175-280 V AC/DC, 50/60 Hz, with integrated varistor, auxiliary contacts: 2 NO + 2 NC, screw terminal, size: S3, removable auxiliary switch","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"900 1/h","at AC-2 maximum":"350 1/h","at AC-3 maximum":"850 1/h","at AC-4 maximum":"200 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Full-Scale Value":"1.1","at AC-3e maximum":"850 1/h","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":"65 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":"20 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.8 A","at 480 V rated value":"96 A","at 50 Hz rated value":"175 ... 280 V","at 500 V rated value":"2 A","at 60 Hz rated value":"175 ... 280 V","at 600 V rated value":"99 A","at 690 V rated value":"1 A","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","Locked-Rotor Current Peak":"1.2 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"10 mA","Of Main Circuit Rated Value":"8 kV","Safety-Related Switching On":"No","at AC-3 rated value maximum":"1 000 V","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","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"03/01/2017","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"5 µs","Locked-Rotor Current Mean Value":"0.44 A","Duration Of Locked-Rotor Current":"150 ms","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"120 A","at AC-5b up to 400 V rated value":"110 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For 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":"3.5 W","closing power of magnet coil at DC":"76 W","holding power of magnet coil at DC":"2.7 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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","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 %","Type Of Voltage Of The Control Supply Voltage":"AC/DC","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)","minimum cross-section in main circuit at maximum AC-1 rated value":"50 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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=1026931&mlfb=3RT2047-1NP34"},"ai":{"faq":[{"question":"What are the exact specifications of the 3RT2047-1NP34?","answer":"The 3RT2047-1NP34 is a SIRIUS power contactor, S3 frame, with a 175-280 V AC coil, screw-type terminals, and an integrated auxiliary switch. It measures 70 mm wide by 140 mm high by 195 mm deep, and accepts solid conductors from 2.5 to 16 mm² and stranded from 6 to 70 mm² on the main contacts."},{"question":"Does 3RT2047-1NP34 include auxiliary contacts?","answer":"Yes, the 3RT2047-1NP34 includes an auxiliary switch as standard equipment, so basic status feedback is available without ordering a separate block."},{"question":"What is the difference between AC-3 and AC-4 contactors?","answer":"AC-3 and AC-4 are utilization categories defined in IEC 60947-4-1. AC-3 covers starting and stopping squirrel-cage motors under normal running conditions; AC-4 covers plugging, inching, and reversing where the motor is switched while still spinning or under load. The 3RT2047-1NP34 is rated for 850 cycles/h in AC-3 and 200 cycles/h in AC-4 — the AC-4 limit is lower because the contacts must break higher currents during reversal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2047-1NP34","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/3RT2047-1NP34 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}}