{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU4551-5UA00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU4551-5UA00","canonicalUrl":"https://aoctrl.com/siemens/4EU4551-5UA00","factsUrl":"https://aoctrl.com/api/mcp/products/4EU4551-5UA00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EU4551-5UA00, Netzdrossel f. FU, 3-phase mains choke, rated 1120 A, 500 V AC, 50/60 Hz, IP00, flat-type terminals.","salesMarkdown":"The Siemens 4EU4551-5UA00 is a 3-phase mains choke (Netzdrossel f. FU) rated for 1120 A continuous at 500 V AC, 50/60 Hz. It is designed for the line side of a frequency converter drive to attenuate harmonics, limit inrush current, and provide some protection against line notching. The IP00 enclosure means it is an open-frame component intended for mounting inside a cabinet or panel — not for standalone outdoor or washdown duty. Thermal class H insulation (IEC 60085) allows a 40 °C ambient with a 700 W coil loss and 400 W iron core loss, so forced ventilation or adequate cabinet airflow is expected at full load. The 1120 A rating is the maximum thermal current (Ithmax) at the rated frequency — this is the continuous current the choke can carry without exceeding its thermal class H limits at 40 °C ambient. For a drive application, size the choke so the drive's input current does not exceed this figure; a 4% relative inductive voltage drop (UK=4%) at rated current is typical for a line reactor intended to reduce harmonic distortion. The 0.000032 H (32 µH) inductance value is the per-phase inductance at rated current and frequency. The flat-type terminals are sized for high-current busbar or cable lug connections — not spring-cage or screw-clamp terminations. Verify the terminal hole pattern and busbar spacing against your panel layout before ordering.","metaTitle":"Siemens 4EU4551-5UA00 Mains Choke, 1120 A, 3-Phase, 500 V","metaDescription":"Siemens 4EU4551-5UA00 mains choke for frequency converters. 1120 A rated, 3-phase, 500 V AC, IP00. Mature lifecycle; sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.293m","Width":"0.46m","Height":"0.435m","Maximum":"1 120A","Rated Value":"1 120A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel f. FU","Protection class IP":"IP00","Inductivity rated value":"0.000032H","Power loss [W] of the coil":"700W","Operating voltage rated value":"500, 500V","Ambient temperature rated value":"40°C","Operating frequency rated value":"60 ... 50Hz","Power loss [W] of the iron core":"400W","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=222409&mlfb=4EU4551-5UA00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU4551-5UA00/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU4551-5UA00","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/4EU4551-5UA00 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}}