{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3904-6DB00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3904-6DB00","canonicalUrl":"https://aoctrl.com/siemens/4EP3904-6DB00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3904-6DB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3904-6DB00 commutating choke for converters, 3-phase, 570V AC, 0.66A rated current, 2.07H inductance, IP00 open-frame, screw/tab terminals.","salesMarkdown":"The Siemens 4EP3904-6DB00 is a 3-phase commutating choke built for converter duty — it sits between the line and the rectifier to limit current rise and clean up the harmonics that thrash a drive's DC bus. Rated for 570V AC at 60Hz, it carries 0.66A continuous (0.73A max) and presents 2.07H of inductance with a 173% relative inductive voltage drop. That high drop figure tells you this choke is designed to handle the steep di/dt from a converter's switching — it's not a general-purpose line reactor. The part is open-frame IP00 — no enclosure, no ingress protection. That means it's meant for a cabinet or a dedicated enclosure where the environment stays dry and clean. Out here in the grease, you'd want to keep it away from washdown zones and hot bearing housings. Dimensions are 0.219m wide by 0.179m tall by 0.123m deep, so it takes up a decent chunk of panel space. Terminals are screw-type and tab-style on the main circuit — expect to land ring or fork lugs, not spring clamps. Thermal class B per IEC 60085, rated for 40°C ambient. Coil losses run 60W, iron core adds another 20W — that's 80W total heat to dissipate inside the cabinet. The choke is built to EN 61558-2-20, the standard for small reactors and chokes. Screw/tab terminals accept the lug sizes typical for this current class.","metaTitle":"Siemens 4EP3904-6DB00 Commutating Choke, 0.66A, 570V, 3-Phas","metaDescription":"Siemens 4EP3904-6DB00 commutating choke for converters. 3-phase, 570V AC, 0.66A rated, 2.07H inductance. IP00 open-frame. Mature lifecycle; sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.123m","Width":"0.219m","Height":"0.179m","Maximum":"0.73A","Rated Value":"0.66A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"0.8A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"2.07H","Power loss [W] of the coil":"60W","Operating voltage rated value":"570V","Ambient temperature rated value":"40°C","Operating frequency rated value":"60Hz","Power loss [W] of the iron core":"20W","Thermal class acc. to IEC 60085":"B","Type of electrical connection for main current circuit":"screw-type terminals / tab terminals","Relative inductive drop in voltage on the measurement level current, voltage and frequency":"173%"}},"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=6183&mlfb=4EP3904-6DB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3904-6DB00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 4EP3904-6DB00 and how is it quoted?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at the time of quotation — no stock count or price is published here."},{"question":"What are the physical dimensions of the 4EP3904-6DB00?","answer":"Width is 0.219m, height 0.179m, depth 0.123m. It is an open-frame IP00 design with screw-type and tab terminals for the main circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3904-6DB00","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/4EP3904-6DB00 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}}