{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3801-0US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3801-0US00","canonicalUrl":"https://aoctrl.com/siemens/4EP3801-0US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3801-0US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3801-0US00 mains choke (line reactor) for variable-frequency drives, 3-phase, 480 V AC, 22.4 A maximum, 20.16 A rated, 1.3 mH, IP00, screw terminals.","salesMarkdown":"The Siemens 4EP3801-0US00 is a three-phase mains choke — what most of us call a line reactor — designed for the input of a variable-frequency drive. It's rated for 480 V AC, 50/60 Hz, with a maximum continuous current of 22.4 A and a rated current of 20.16 A at 40 °C ambient. The 1.3 mH inductance and 4 % relative voltage drop at rated current are what you'd expect for a drive input reactor sized to limit harmonics and smooth the line-side waveform. Total power loss splits into 73 W in the coil and 23 W in the iron core, for 96 W total at full load. That's heat that stays in the panel — the IP00 enclosure means no fan or ducting, so make sure the cabinet has enough free-air volume or forced ventilation to keep the ambient below 40 °C. Thermal class B (130 °C) insulation gives a reasonable safety margin above the 40 °C ambient. Footprint is 0.178 m wide by 0.153 m tall by 0.12 m deep — about 7 by 6 by 4.7 inches. That's a compact package for a 20 A three-phase reactor. Screw terminals for the main circuit; no DIN-rail clip, so it bolts to a backplate or chassis. IP00 means no touch protection — mount it behind a locked door or inside a grounded enclosure.","metaTitle":"Siemens 4EP3801-0US00 Mains Choke, 22.4A 3-Phase 480V","metaDescription":"Siemens 4EP3801-0US00 mains choke for VFD, 3-phase, 480V AC, 22.4A max, 20.16A rated, 1.3 mH, IP00, screw terminals. 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":"0.12m","Width":"0.178m","Height":"0.153m","Maximum":"22.4A","Rated Value":"20.16A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel f. FU","Protection class IP":"IP00","Inductivity rated value":"0.0013H","Power loss [W] of the coil":"73W","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":"23W","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=188615&mlfb=4EP3801-0US00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3801-0US00/alternatives.json"},"ai":{"faq":[{"question":"What is 4EP3801-0US00 used for?","answer":"It's a three-phase mains choke (line reactor) for the input of a variable-frequency drive. It limits harmonic distortion, reduces line notching, and protects the drive's DC bus from voltage spikes. Rated for 480 V AC, 22.4 A maximum, 20.16 A rated."},{"question":"Where can I buy 4EP3801-0US00?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What compliance documentation does Siemens provide for 4EP3801-0US00?","answer":"The listing notes UL/CSA recognition per EN 61558-2-20. The product carries the CE mark for the European market. RoHS and REACH declarations are standard from Siemens for this series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3801-0US00","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/4EP3801-0US00 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}}