{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP4002-3DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP4002-3DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP4002-3DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP4002-3DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP4 series commutating choke for converters, 4EP4002-3DS00, 3-phase, 400V AC, 50Hz, 91A max / 81.9A rated, 0.31mH, IP00, flat-type terminals.","salesMarkdown":"The Siemens 4EP4002-3DS00 is a 3-phase commutating choke (line reactor) for converter applications, rated 400V AC at 50Hz. It handles a maximum continuous current of 91A and a rated current of 81.9A, with a DC-rated value of 111.5A. The inductance is 0.31mH, and the relative inductive voltage drop is 4% at rated current, frequency, and voltage — a standard value for limiting current rise and harmonics on the line side of a drive. The 91A maximum current (81.9A rated) and 111.5A DC rating tell you this choke is sized for a drive drawing around 75–90A continuous on the line side. The 4% inductive voltage drop is typical for a commutating choke — it provides enough impedance to smooth commutation notches and limit di/dt without dropping excessive voltage under load. The 72.6W coil loss plus 35.8W iron-core loss (108.4W total at rated conditions) is heat that must be dissipated; with IP00, the choke is open-frame and relies on cabinet airflow — no enclosure to trap heat, but also no protection from dust or accidental contact. Dimensions: 0.219m wide, 0.179m high, 0.143m deep. This is a panel-mount component, not a DIN-rail snap-on — it bolts into the cabinet. The 0.143m (143mm) depth is the front-to-back dimension; allow clearance for the flat-type terminal connections and bending radius of the incoming cables. IP00 means no finger-safe enclosure, so it belongs behind a locked panel door or inside a dedicated drive cubicle.","metaTitle":"Siemens 4EP4002-3DS00 Commutating Choke, 91A, 400V, 3-Phase","metaDescription":"Siemens 4EP4002-3DS00 commutating choke for converters. 3-phase, 400V AC, 50Hz, 91A max, 81.9A rated, 0.31mH. 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":"0.143m","Width":"0.219m","Height":"0.179m","Maximum":"91A","Rated Value":"81.9A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"111.5A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00031H","Power loss [W] of the coil":"72.6W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"35.8W","Thermal class acc. to IEC 60085":"B","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=50850&mlfb=4EP4002-3DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP4002-3DS00/alternatives.json"},"ai":{"faq":[{"question":"What are the key electrical ratings for 4EP4002-3DS00?","answer":"3-phase, 400V AC, 50Hz. Maximum continuous current 91A, rated current 81.9A, DC-rated value 111.5A. Inductance 0.31mH with a 4% inductive voltage drop. Coil power loss 72.6W, iron-core loss 35.8W."},{"question":"What approvals does 4EP4002-3DS00 carry?","answer":"It is UL/CSA-recognized per EN 61558-2-20. Thermal class B (130°C) per IEC 60085. Ambient temperature rating 40°C."},{"question":"Where can I buy 4EP4002-3DS00 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here."},{"question":"Will 4EP4002-3DS00 drop into a panel specified around a miniature circuit breaker like 5SJ3140-7?","answer":"No — this is a 3-phase commutating choke (line reactor) for converter input, not a circuit breaker. It is panel-mount with flat-type terminals, not DIN-rail snap-on. It serves a completely different function and wiring scheme."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP4002-3DS00","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/4EP4002-3DS00 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}}