{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3800-1US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3800-1US00","canonicalUrl":"https://aoctrl.com/siemens/4EP3800-1US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3800-1US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3800-1US00, Netzdrossel f. FU, 3-phase AC mains choke, 500V rated voltage, 50A max current, 0.37 mH, IP00, screw terminals.","salesMarkdown":"The Siemens 4EP3800-1US00 is a three-phase mains choke (line reactor) designed for the input side of a frequency converter (Netzdrossel f. FU). The 0.00037 H inductance and 2% voltage drop define the harmonic attenuation. Thermal class B per IEC 60085, meaning the winding insulation is rated for a 130 °C hot-spot. The 52 W copper loss plus 13 W iron-core loss at rated load is the heat you need to vent — IP00 means no enclosure, so it's intended for a cabinet with forced or natural convection, not for standalone outdoor mounting. Dimensions: 0.178 m wide, 0.153 m tall, 0.12 m deep. That's a compact footprint for a 50 A three-phase choke — about the size of a small contactor. IP00 means no drip shield or finger protection — the choke must live inside a locked cabinet or behind a panel door. The 40 °C ambient rating is the reference; derate current if your cabinet ambient runs hotter, per the thermal class B curve.","metaTitle":"Siemens 4EP3800-1US00 Mains Choke, 3-Phase, 500V, 50A, IP00","metaDescription":"Siemens 4EP3800-1US00 mains choke for frequency converters. 3-phase AC, 500V rated voltage, 50A max current, 0.37 mH, IP00. Active production. UL/CSA recognized. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.12m","Width":"0.178m","title":"4EP3800-1US00","Height":"0.153m","description":"MAINS CHOKE F.FU; PHASES:3; UN1(V):500; ITHMAX 1(A) / F1(HZ):50 /50; I LN (A):45; UK(%):2; LN(MH):0,368; TA/ISOKL:40 /B; IP00; TYPE OF TERMINALS:SCREW CONNECTION; 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":"50A","Inductivity Rated Value":"0.00037H","power loss [W] of the coil":"52W","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","operational current at AC rated value":"45A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Relative Inductive Drop In Voltage For Rated Value Of The Current, Voltage And Frequency":"2%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d8892912f358285a3b595d3ba48df627.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=153135&mlfb=4EP3800-1US00"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 4EP3800-1US00?","answer":"The spec confirms UL/CSA recognition per EN 61558-2-20. For RoHS, REACH, or other declarations, Siemens typically supplies these on request for active catalog items — your RFQ can include a documentation request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3800-1US00","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/4EP3800-1US00 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}}