{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3800-8US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3800-8US00","canonicalUrl":"https://aoctrl.com/siemens/4EP3800-8US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3800-8US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3800-8US00 mains choke (Netzdrossel f. FU), 3-phase, 500V AC, 22.4A max / 20.16A rated, 1.6 mH, 4% voltage drop, IP00, screw terminals.","salesMarkdown":"## Mains Choke for Variable Frequency Drives The Siemens 4EP3800-8US00 is a three-phase mains choke (line reactor) designed for installation upstream of a variable frequency drive (VFD). Its job is to smooth the input current, reduce harmonic distortion, and limit inrush current spikes that can trip upstream breakers or stress the drive's DC bus capacitors. Rated for 500 V AC at 50 Hz, it carries a maximum continuous current of 22.4 A and a rated current of 20.16 A — the rated figure is the one to size against your drive's input current draw. The 1.6 mH inductance and 4 % relative inductive voltage drop tell you how much filtering it provides: at rated load, the choke drops 4 % of line voltage, which is typical for a 4 % impedance line reactor used in drive input filtering. Total power loss splits between the coil (38 W) and the iron core (13 W), summing to 51 W at rated conditions. The 4EP3800-8US00 is UL and CSA recognized per the description, which simplifies panel acceptance in North American installations. The IP00 enclosure means it is an open-frame component intended for mounting inside a cabinet with a higher IP-rated door — not for standalone outdoor or washdown use. ## Panel Integration Dimensions are 0.178 m wide by 0.153 m tall by 0.12 m deep. Mounting is via the frame's own brackets — no DIN rail clip, so allocate a sub-panel or chassis-mount location.","metaTitle":"Siemens 4EP3800-8US00 Mains Choke, 3-Phase, 22.4A, 500V","metaDescription":"Siemens 4EP3800-8US00 mains choke for variable frequency drives. 3-phase, 500V AC, 22.4A max / 20.16A rated, 1.6 mH, 4% voltage drop. UL/CSA recognized. Sourced to order against RF","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":"0.0016H","Power loss [W] of the coil":"38W","Operating voltage rated value":"500V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"13W","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=224928&mlfb=4EP3800-8US00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3800-8US00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EP3800-8US00?","answer":"This part 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 electrical ratings for 4EP3800-8US00?","answer":"Three-phase, 500 V AC, 50 Hz, 22.4 A maximum continuous current, 20.16 A rated current, 1.6 mH inductance, 4 % voltage drop at rated load."},{"question":"Is 4EP3800-8US00 UL or CSA recognized?","answer":"Yes, the description states it is UL/CSA recognized, which supports panel acceptance in North American jurisdictions."},{"question":"What is the physical size of 4EP3800-8US00?","answer":"Width 0.178 m, height 0.153 m, depth 0.12 m. It is an open-frame (IP00) component with screw-type terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3800-8US00","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/4EP3800-8US00 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}}