{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3801-0DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3801-0DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3801-0DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3801-0DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3801-0DS00 commutating choke for converters, 3-phase, 400V AC, 72A rated / 80A max, 0.18mH, IP00, thermal class B.","salesMarkdown":"The Siemens 4EP3801-0DS00 is a 3-phase commutating choke (line reactor) for converter applications, rated 72A continuous with an 80A maximum current capability. It's built for 400V AC, 50 Hz systems, with an inductance of 0.18 mH and a relative inductive voltage drop of 2% at rated conditions. This choke sits between the converter and the supply line to smooth current ripple, limit di/dt, and reduce harmonic distortion on the mains — a standard fit for variable-frequency drive input or DC-link circuits. The 72A rated current (80A max) tells you this choke handles the continuous full-load current of a drive in that range — think a 37–45 kW motor at 400V depending on drive efficiency and duty cycle. The 2% voltage drop at rated current is low enough that it won't steal significant voltage from the drive's DC bus under load. Thermal class B insulation (130°C rise) means the choke can run hot in an enclosure without derating, as long as ambient stays at or below 40°C. The 53.4W copper loss plus 17.8W iron loss (71.2W total) is heat that stays in the panel — factor that into your enclosure ventilation if you're stacking multiple chokes. ## Mounting and connection realities IP00 means no enclosure protection — this is an open-frame component for inside a cabinet only. It measures 0.178m wide by 0.153m tall by 0.12m deep, so it'll fit a standard 200mm-deep panel but check your backplate layout before drilling. Main circuit connections are flat-type terminals (not ring or fork lugs), so plan for crimp-on flat connectors or busbar taps. No DIN-rail clip here — this one bolts directly to the panel backplate.","metaTitle":"Siemens 4EP3801-0DS00 Commutating Choke, 72A, 3-Phase, 400V","metaDescription":"Siemens 4EP3801-0DS00 commutating choke for converters. 3-phase, 400V AC, 72A rated (80A max), 0.18mH, IP00, thermal class B. Mature lifecycle; quoted 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":"80A","Rated Value":"72A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"98A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00018H","Power loss [W] of the coil":"53.4W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"17.8W","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=187690&mlfb=4EP3801-0DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3801-0DS00/alternatives.json"},"ai":{"faq":[{"question":"What does the 72A rated current mean for my drive selection?","answer":"The 72A rated current (80A maximum) makes this choke suitable for a 3-phase 400V drive in the 37–45 kW range, depending on the drive's input current draw and duty cycle. The 2% voltage drop won't significantly affect DC bus voltage under load."},{"question":"Where can I buy the 4EP3801-0DS00?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What compliance documentation is available for the 4EP3801-0DS00?","answer":"The choke is designed to EN 61558-2-20, the standard for chokes and reactors. It carries thermal class B per IEC 60085. For specific RoHS/REACH/UL declarations, request documentation with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3801-0DS00","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/4EP3801-0DS00 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}}