{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3800-8DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3800-8DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3800-8DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3800-8DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3800-8DS00 commutating choke for converter, 3-phase, 400V AC, 50Hz, rated current 63.9A, max 71A, inductivity 0.2mH, IP00, flat-type terminals.","salesMarkdown":"The Siemens 4EP3800-8DS00 is a 3-phase commutating choke (also called a converter line reactor) rated for 400V AC at 50Hz, with a continuous rated current of 63.9A and a maximum current of 71A at the same frequency. It is designed to sit between a converter (VFD or DC drive) and the AC line to limit di/dt, reduce harmonics, and protect the converter's input rectifier from line notching and commutation notches. The 0.2mH inductance (0.0002H) with a 2% relative inductive voltage drop at rated current is sized for typical 400V-class industrial drives in the 30–45 kW range on a 3-phase supply. The 63.9A rated current (AC) is the continuous thermal limit at 40°C ambient with thermal class B insulation per IEC 60085 — meaning the winding hot-spot temperature stays within 130°C class limits under that load. At DC the same choke carries 87A, which matters if it is used on the DC bus side of a 6-pulse rectifier. The 71A maximum figure is the overload ceiling at 50Hz; sustained operation above 63.9A will exceed the 59W coil loss plus 18.5W iron core loss budget, and the temperature rise will push past the class B limit. The IP00 protection class means the choke has no enclosure — it is an open-core, open-winding assembly intended for mounting inside a cabinet or panel that provides its own IP rating. The flat-type terminals for the main circuit accept bus-bar or cable-lug connections, not spring-cage or screw-clamp wire terminations. Plan for a bolted connection with appropriate lug width matching the terminal flat. The choke measures 0.178m wide, 0.153m high, and 0.12m deep. That is about 178 mm × 153 mm × 120 mm — a compact footprint for a 63.9A 3-phase line reactor. It mounts on a flat panel surface via its core clamping brackets; there is no DIN-rail clip, so plan for four mounting bolts into a backplate or chassis. The 0.12m depth (120 mm) is the dimension from the mounting surface to the farthest winding overhang, so allow clearance for the flat terminals and any bus-bar bends in front of the choke. Lifecycle stage is mature. No successor listed. Sourced to order; confirm availability and pricing via RFQ.","metaTitle":"Siemens 4EP3800-8DS00 Commutating Choke, 63.9A, 400V","metaDescription":"Siemens 4EP3800-8DS00 3-phase commutating choke for converters. Rated 63.9A, 400V AC, 50Hz. IP00, flat terminals. Mature lifecycle; sourced to order. Request RFQ.","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":"71A","Rated Value":"63.9A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"87A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.0002H","Power loss [W] of the coil":"59W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"18.5W","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":"2%"}},"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=221794&mlfb=4EP3800-8DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3800-8DS00/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3800-8DS00","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/4EP3800-8DS00 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}}