{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3052-1UB00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3052-1UB00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/4EU3052-1UB00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3052-1UB00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens, Netzdrossel f. FU, 4EU3052-1UB00-0AA0, 3-phase mains choke, 225A rated current, 500V AC, 50Hz, 0.15mH, IP00, flat-type terminals.","salesMarkdown":"## What this reactor does for your drive line The Siemens 4EU3052-1UB00-0AA0 is a 3-phase mains choke (Netzdrossel f. FU) designed to sit between the supply and a variable frequency drive. Its job is to limit harmonic distortion, reduce peak currents, and protect the drive's DC bus from line-side transients — the kind that trip upstream breakers or cook the input rectifier on a hard start. Rated 225 A continuous with a 250 A maximum, it handles the full-load current of a substantial motor drive without saturating. The 0.15 mH inductance (0.147 mH per the description) gives a 4 % relative inductive voltage drop at rated current and frequency. That 4 % figure is the standard sweet spot for drive input reactors — enough to clean up the line without dropping so much voltage that the drive's DC bus starves under load. At 500 V AC, 50 Hz, this reactor is sized for European-standard industrial mains feeding a 3-phase drive. ## Thermal class and power loss — what they mean for panel design Thermal class H per IEC 60085 means the coil insulation can withstand 180 °C hot-spot temperature continuously. That is a wide safety margin above the 40 °C ambient rating — useful when the reactor is mounted inside a crowded enclosure where airflow is tight. Total power loss is 307 W (220 W coil + 87 W iron core). That is the heat you must vent; a panel with this reactor needs forced ventilation or generous natural convection area to keep the internal rise under control. IP00 protection class means the reactor has no enclosure — it is a bare magnetic assembly intended for mounting inside a locked electrical cabinet. The flat-type terminals accept busbar or cable lugs; plan for a bolted connection on the main circuit path. Dimensions are 0.221 m deep, 0.3 m wide, 0.269 m tall — a compact footprint for a 225 A reactor, but leave clearance for airflow and terminal access on all sides.","metaTitle":"Siemens 4EU3052-1UB00-0AA0 Line Reactor, 225A, 500V, 50Hz","metaDescription":"Siemens 4EU3052-1UB00-0AA0 mains choke for variable frequency drives. 225A rated, 500V AC, 50Hz, 0.15mH, IP00. UL/CSA recognized. Sourced to order against RFQ.","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":"250A","Rated Value":"225A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel f. FU","Protection class IP":"IP00","Inductivity rated value":"0.00015H","Power loss [W] of the coil":"220W","Operating voltage rated value":"500V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"87W","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=396371&mlfb=4EU3052-1UB00-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3052-1UB00-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EU3052-1UB00-0AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time through our independent distribution network."},{"question":"What is the inductance and voltage drop of this reactor?","answer":"Rated inductance is 0.15 mH (0.147 mH per the description) with a 4 % relative inductive voltage drop at 225 A, 500 V, 50 Hz."},{"question":"What compliance certifications does 4EU3052-1UB00-0AA0 carry?","answer":"The reactor is UL/CSA recognized per EN 61558-2-20, covering North American and European safety standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3052-1UB00-0AA0","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/4EU3052-1UB00-0AA0 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}}