{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3804-8DK00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3804-8DK00","canonicalUrl":"https://aoctrl.com/siemens/4EP3804-8DK00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3804-8DK00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3804-8DK00 commutating choke for converter, 3-phase, 23 A rated current, 480 V AC, 1.2 mH, IP00, screw-type terminals.","salesMarkdown":"It carries a rated current of 23 A (25 A maximum) at 400/480 V AC, 50/60 Hz, with an inductance of 1.2 mH and a relative inductive voltage drop of 4% at the rated operating point. The part is recognized under UL/CSA and built to EN 61558-2-20, thermal class B, with screw-type terminals and IP00 protection — meaning it must be installed inside an enclosure that provides the required ingress protection. The 23 A rated current (25 A maximum) is the continuous thermal current at 40 °C ambient. The 30.6 A DC-rated value applies if the choke is used in a DC-link circuit — a different duty than the AC line reactor role. The 1.2 mH inductance with 4% voltage drop is sized for typical 6-pulse converter harmonics; a lower-drop choke (2%) would give less line distortion filtering, a higher-drop (5% or more) increases losses and voltage sag. The 54.3 W coil loss plus 16.6 W iron-core loss means about 71 W total heat to dissipate inside the panel — factor that into cabinet ventilation or forced cooling if ambient is near the 40 °C limit. Dimensions are 0.178 m width × 0.153 m height × 0.12 m depth. The IP00 rating means no enclosure — mount this choke inside a panel that provides at least IP2X (finger-safe) or better, depending on the installation environment. Screw-type terminals accept standard power conductors; no special lug kit required. The thermal class B insulation (130 °C) is standard for industrial reactors and compatible with most converter cabinets.","metaTitle":"Siemens 4EP3804-8DK00 Commutating Choke, 23A, 480V, 3-Phase","metaDescription":"Siemens 4EP3804-8DK00 commutating choke for converter. 23A rated, 480V AC, 3-phase, 1.2mH, IP00, screw terminals. 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":"0.12m","Width":"0.178m","Height":"0.153m","Maximum":"25A","Rated Value":"23A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"30.6A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.0012H","Power loss [W] of the coil":"54.3W","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":"16.6W","Thermal class acc. to IEC 60085":"B","Type of electrical connection for main current circuit":"screw-type terminals","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=473133&mlfb=4EP3804-8DK00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3804-8DK00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EP3804-8DK00 and get a price?","answer":"The 4EP3804-8DK00 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does 4EP3804-8DK00 carry?","answer":"The choke is UL/CSA recognized and built to EN 61558-2-20. RoHS and REACH declarations are available from the manufacturer."},{"question":"What are the key ratings of 4EP3804-8DK00?","answer":"Rated current 23 A (max 25 A), 3-phase, 400/480 V AC, 50/60 Hz, 1.2 mH inductance, 4% voltage drop, IP00, screw terminals, thermal class B."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3804-8DK00","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/4EP3804-8DK00 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}}