{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3052-8UA00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3052-8UA00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/4EU3052-8UA00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3052-8UA00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 4EU3052-8UA00-0AA0 mains choke for frequency converters, 3-phase, 319.5 A rated current, 355 A max, 400/480 V AC, 50-60 Hz, IP00, flat-type terminals.","salesMarkdown":"## What this mains choke does for a drive line It sits between the supply and the drive, limiting harmonic currents and reducing the rate of voltage rise (dV/dt) that can stress the drive's rectifier and DC bus. Rated 319.5 A continuous with a 355 A maximum, it handles the full load current of a large drive — think pumps, conveyors, or compressors in the 200+ kW range on a 400 V or 480 V three-phase line. That 4% figure is typical for line reactors sized to meet IEEE 519 harmonic limits without over-dropping voltage and starving the drive. At 400 V, expect roughly 16 V dropped across the choke at 319.5 A — the drive compensates internally, but the motor's available torque at the shaft drops proportionally. If your drive is already marginal on voltage, a 2% choke might be a better fit. This is an open-frame (IP00) component — no enclosure, no finger-safe covers. It mounts inside a panel or cabinet where the live flat-type terminals are protected by the enclosure's own IP rating. The 0.221 m depth by 0.3 m width by 0.269 m height footprint needs a generous backplate; plan for at least 50 mm clearance around the choke for airflow, because the combined coil and iron losses total 345 W (216 W coil + 129 W iron) at full load. That heat has to leave the cabinet — factor it into your ventilation or forced-air cooling budget. UL and CSA recognition is confirmed, so the choke carries the approvals needed for North American panel builds. The thermal class H insulation means the winding can handle a 180 °C hot-spot temperature — well above the 40 °C ambient rating, giving a solid thermal margin even in a warm cabinet. ## Integration notes — what fits, what doesn't The main circuit connects via flat-type terminals. These are bus-bar style lugs, not screw-clamp or ring terminals — expect to bolt on a copper bar or a crimped flat connector. Verify your drive's input cable lug matches the terminal width before ordering; the evidence does not specify the hole size or stud thread, so check the nameplate drawing if you're adapting existing cables. The 79 µH inductance is the actual line-reactor value that determines the current-limiting and harmonic-filtering performance. At 50 Hz, that gives roughly 0.025 Ω inductive reactance per phase; at 60 Hz, about 0.030 Ω. The 4% voltage drop figure is measured at rated current and frequency — if you run the drive at a lower load, the voltage drop scales linearly, and the harmonic attenuation improves. If you need to calculate the short-circuit current limiting, use the 79 µH value with your system's available fault current.","metaTitle":"Siemens 4EU3052-8UA00-0AA0 Mains Choke, 319.5A, 3-Phase","metaDescription":"Siemens 4EU3052-8UA00-0AA0 mains choke for frequency converters. 3-phase, 319.5A rated, 355A max, 400/480V AC, 50-60 Hz, IP00, UL/CSA recognized. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.221m","Width":"0.3m","Height":"0.269m","Maximum":"355A","Rated Value":"319.5A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel f. FU","Protection class IP":"IP00","Inductivity rated value":"0.000079H","Power loss [W] of the coil":"216W","Operating voltage rated value":"400, 480V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50 ... 60Hz","Power loss [W] of the iron core":"129W","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"flat connector","Relative inductive drop in voltage on the measurement level current, voltage and frequency":"4%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=423229&mlfb=4EU3052-8UA00-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3052-8UA00-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of this mains choke?","answer":"It is a 3-phase AC choke rated 319.5 A continuous (355 A max) at 400/480 V, 50-60 Hz, with 79 µH inductance and a 4% voltage drop at rated current. Combined power loss is 345 W (216 W coil + 129 W iron)."},{"question":"Where can I buy 4EU3052-8UA00-0AA0 and how is it quoted?","answer":"This part is sourced through independent industrial-automation distribution. It is quoted to order against an RFQ; availability and current pricing are confirmed at quote time. Submit an RFQ for a firm price and lead-time estimate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3052-8UA00-0AA0","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/4EU3052-8UA00-0AA0 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}}