{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP4001-3US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP4001-3US00","canonicalUrl":"https://aoctrl.com/siemens/4EP4001-3US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP4001-3US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP4001-3US00 mains choke (Netzdrossel f. FU), 3-phase, 480V AC, 91A max, 0.16 mH, IP00, flat-type terminals.","salesMarkdown":"It smooths current harmonics and limits inrush, protecting both the drive and the upstream supply. Rated for 480 V AC at 50/60 Hz, it carries a maximum current of 91 A and a rated operational current of 81.9 A — the 91 A figure is the thermal limit at 40 °C ambient; the 81.9 A is the continuous duty point at rated voltage and frequency. The 0.16 mH inductance (160 µH) with a 4% relative inductive voltage drop means this choke is sized for a typical drive input where you want around 2–4% impedance. That's the sweet spot for reducing harmonic distortion without dropping too much voltage across the reactor under load. IP00 open-frame construction — no enclosure, no finger-safe cover. This choke mounts inside a panel or cabinet, not in a wet or dusty location. Dimensions are 0.219 m wide by 0.179 m tall by 0.143 m deep, so it needs a decent chunk of backplate real estate. Terminals are flat-type connectors (busbar or ring-lug friendly), not screw-clamp blocks. Total power loss is 99.5 W (78 W copper + 21.5 W iron core). That heat has to leave the cabinet — factor it into your ventilation or forced-air cooling budget. Thermal class B (130 °C rise) per IEC 60085 gives you a standard insulation system; no exotic derating needed unless ambient exceeds 40 °C. Compliance documentation: the title notes UL/CSA recognition and EN 61558-2-20 (safety of transformers, reactors, and power supply units). Expect a declaration of conformity covering the Low Voltage Directive and applicable harmonized standards. RoHS and REACH declarations should be available on request.","metaTitle":"Siemens 4EP4001-3US00 Mains Choke, 3-Phase 480V 91A","metaDescription":"Siemens 4EP4001-3US00 mains choke for frequency converters. 3-phase, 480V AC, 91A max, 0.16 mH, IP00. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.143m","Width":"0.219m","title":"4EP4001-3US00","Height":"0.179m","description":"MAINS CHOKE F.FU; PHASES:3; UN1(V):480; ITHMAX 1(A) / F1(HZ):91 /60; I LN (A):81,9; UK(%):2; LN(MH):0,155; TA/ISOKL:40 /B; IP00; TYPE OF TERMINALS:FLAT-TYPE TERMINAL; EN 61558-2-20 >UL/CSA-RECOGNIZED< >CHOKE<","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Designation":"Netzdrossel f. FU","protection class IP":"IP00","current at AC maximum":"91A","Inductivity Rated Value":"0.00016H","power loss [W] of the coil":"78W","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":"21.5W","thermal class acc. to IEC 60085":"B","operational current at AC rated value":"81.9A","Type Of Electrical Connection For Main Current Circuit":"flat connector","Relative Inductive Drop In Voltage For Rated Value Of The Current, Voltage And Frequency":"4%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4611891acd085e6ea0cbb89f9fc40088.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=396079&mlfb=4EP4001-3US00"},"ai":{"faq":[{"question":"What is the 4EP4001-3US00 used for?","answer":"It is a three-phase mains choke (line reactor) for the input of a frequency converter. It reduces harmonic currents, limits inrush, and provides some protection against line-side transients."},{"question":"What are the key electrical ratings of 4EP4001-3US00?","answer":"Rated voltage 480 V AC, frequency 50/60 Hz, maximum current 91 A, rated operational current 81.9 A, inductance 0.16 mH, 4% voltage drop, total power loss 99.5 W."},{"question":"Where can I buy 4EP4001-3US00?","answer":"This part is sourced and quoted to order through independent industrial distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, not before."},{"question":"Does 4EP4001-3US00 have UL or CSA approval?","answer":"The manufacturer's description states UL/CSA recognition and compliance with EN 61558-2-20. Formal certification documentation should be available from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP4001-3US00","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/4EP4001-3US00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}