{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3904-4DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3904-4DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3904-4DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3904-4DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3904-4DS00 commutating choke for converters, 3-phase, 11A rated current, 3mH inductance, 600V AC, IP00, screw terminals.","salesMarkdown":"The Siemens 4EP3904-4DS00 is a 3-phase commutating choke (drossel) designed for converter applications. It carries a rated current of 11 A with a maximum of 12 A, an inductance of 3 mH, and an operating voltage of 600 V AC at 20 Hz. The part is rated for an ambient temperature of 40 °C and is built to thermal class B per IEC 60085. It is recognized under UL/CSA standards, making it suitable for panels destined for North American or European markets. The 11 A rated current and 3 mH inductance are the key selection parameters: this choke limits the rate of current rise (di/dt) in the DC link of a converter, protecting the rectifier diodes and smoothing commutation notches. The 20 Hz operating frequency matches the fundamental of many variable-frequency drives running at low output; for 50/60 Hz line applications the choke will still function, but the core losses shift — verify thermal performance if used above 20 Hz. IP00 means the choke is open-frame with no enclosure protection. The screw-type terminals accept standard ring or fork lugs; strip length and torque follow the manufacturer's recommendation for the terminal size. The choke measures 0.219 m wide by 0.179 m tall by 0.123 m deep (approximately 219 × 179 × 123 mm). It is a panel-mount component — not DIN-rail — so plan for dedicated mounting holes or a chassis plate. The screw terminals for the main circuit are sized for the 11 A continuous duty; use appropriately rated ring lugs. The total power loss is 82.2 W (53.4 W in the coil plus 28.8 W in the iron core), which must be considered in the cabinet thermal budget. Allow adequate airflow around the choke to avoid exceeding the 40 °C ambient rating.","metaTitle":"Siemens 4EP3904-4DS00 Commutating Choke, 11A, 3mH, 600V AC,","metaDescription":"Siemens 4EP3904-4DS00 commutating choke for converters. 3-phase, 11A rated, 3mH, 600V AC, IP00. UL/CSA recognized. Available to order — request RFQ for pricing and lead time.","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":"12A","Rated Value":"11A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.003H","Power loss [W] of the coil":"53.4W","Operating voltage rated value":"600V","Ambient temperature rated value":"40°C","Operating frequency rated value":"20Hz","Power loss [W] of the iron core":"28.8W","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":"0.75%"}},"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=450084&mlfb=4EP3904-4DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3904-4DS00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EP3904-4DS00?","answer":"The 4EP3904-4DS00 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key specifications of 4EP3904-4DS00?","answer":"It is a 3-phase commutating choke rated 11 A (max 12 A), 3 mH inductance, 600 V AC operating voltage, 20 Hz frequency, IP00, with screw terminals and UL/CSA recognition."},{"question":"What compliance documentation does 4EP3904-4DS00 carry?","answer":"The part is UL/CSA recognized per EN 61558-2-20, and is built to thermal class B per IEC 60085."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3904-4DS00","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/4EP3904-4DS00 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}}