{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3951-0UC00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3951-0UC00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3951-0UC00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3951-0UC00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens, Netzdrossel f. FU, 4EU3951-0UC00-0A, 3-phase AC mains choke, 1600 A AC max, 480 V AC, 50-60 Hz, 8 µH, IP00, flat-type terminals.","salesMarkdown":"## Mains Choke for Frequency Converter Applications The Siemens 4EU3951-0UC00-0A is a 3-phase mains choke (Netzdrossel f. FU) designed for installation on the line side of a frequency converter drive. Its primary function is to attenuate harmonic distortion, limit inrush current, and provide a degree of protection to the converter's DC-link capacitors against line-side transients. Rated for 1 600 A AC maximum at 480 V AC, 50-60 Hz. Inductance is 0.000008 H with a 2% inductive voltage drop at rated conditions. Coil loss is 540 W and iron core loss is 212 W at 40 °C ambient. The part carries UL/CSA recognition and is designed to EN 61558-2-20, the standard for safety of transformers, reactors, and similar equipment. This provides a defensible compliance basis for tender submissions and panel certification audits. Thermal class H per IEC 60085 means the insulation system can withstand a continuous operating temperature of 180 °C, which is typical for high-current, high-loss components in industrial environments. ## Physical Integration and Mounting The choke measures 0.385 m high, 0.41 m wide, and 0.229 m deep. Main circuit connections are via flat-type terminals, which are standard for high-current busbar or cable-lug connections. Verify the terminal dimensions against your busbar drilling pattern or cable lug width during panel layout. The 1 440 A operational current rating (I LN) at rated conditions is the continuous current the choke is designed to carry under nominal voltage and frequency.","metaTitle":"Siemens 4EU3951-0UC00-0A Mains Choke, 1600 A, 480 V AC","metaDescription":"Siemens 4EU3951-0UC00-0A mains choke for frequency converters. 3-phase, 1600 A AC max, 480 V AC, 50-60 Hz, 8 µH. UL/CSA recognized per EN 61558-2-20. Mature lifecycle; sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.229m","Width":"0.41m","title":"4EU3951-0UC00-0A","Height":"0.385m","description":"MAINS CHOKE F.FU; PHASES:3; UN1(V):480; ITHMAX 1(A) / F1(HZ):1600 /60; I LN (A):1440; UK(%):2; LN(MH):0,00881; TA/ISOKL:40 /H; IP00; TYPE OF TERMINALS:FLAT-TYPE TERMINAL; EN 61558-2-20 >UL/CSA-RECOGNIZED< >CHOKE<","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Designation":"Netzdrossel f. FU","protection class IP":"IP00","current at AC maximum":"1 600A","Inductivity Rated Value":"0.000008H","power loss [W] of the coil":"540W","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":"212W","thermal class acc. to IEC 60085":"H","operational current at AC rated value":"1 440A","Type Of Electrical Connection For Main Current Circuit":"flat connector","Relative Inductive Drop In Voltage For Rated Value Of The Current, Voltage And Frequency":"2%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6a9d2500e6c76bd7b3a99b0da7ff9799.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=520420&mlfb=4EU3951-0UC00-0A"},"ai":{"faq":[{"question":"What are the physical dimensions of this choke?","answer":"Height is 0.385 m, width is 0.41 m, and depth is 0.229 m. The IP00 rating means it requires panel mounting within a suitable enclosure."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3951-0UC00-0A","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/4EU3951-0UC00-0A 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}}