{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3800-1GS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3800-1GS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3800-1GS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3800-1GS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 4EP3800-1GS00, 3-phase commutating choke for converter, 90A max / 81A rated, 0.14mH, 50Hz, IP00, flat-type terminals.","salesMarkdown":"It sits between the AC line and the converter's rectifier to limit current rise, reduce harmonic distortion, and protect the DC bus from line notches. Rated 90 A maximum with a continuous 81 A rating at 50 Hz, it handles the ripple and commutation notches a six-pulse drive throws back at the line. The 0.14 mH inductance provides a relative inductive voltage drop of 0% at rated conditions, meaning it's sized for current-limiting duty rather than significant voltage drop — the choke absorbs the switching edges without stealing voltage headroom from the drive. ## Thermal and mounting reality IP00 open-frame construction means this choke expects a clean, dry enclosure — no washdown, no dust. Panel builders should mount it inside a cabinet with adequate ventilation; total power loss is 87 W (76 W coil + 11 W iron core) at the 40 °C ambient rating, so that heat has to leave the enclosure. Thermal class B per IEC 60085 means the insulation system is rated for 130 °C hot-spot, which gives a comfortable margin above the 40 °C ambient. Dimensions are 0.178 m wide by 0.153 m tall by 0.12 m deep — roughly the footprint of a small contactor but deeper. Main circuit connections are flat-type terminals, which typically accept busbar or ring-tongue lugs; verify lug width against the terminal pad before panel layout.","metaTitle":"Siemens 4EP3800-1GS00 Commutating Choke, 90A/81A 50Hz IP00","metaDescription":"Siemens 4EP3800-1GS00 3-phase commutating choke for converters. 90A max, 81A rated, 0.14mH, IP00 open-frame. 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":"90A","Rated Value":"81A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"110.2A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00014H","Power loss [W] of the coil":"76W","Operating voltage rated value":"0V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"11W","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":"0%"}},"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=188485&mlfb=4EP3800-1GS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3800-1GS00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EP3800-1GS00 and get a price?","answer":"This part is sourced 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 are the key ratings for 4EP3800-1GS00?","answer":"3-phase AC commutating choke, 90 A maximum current, 81 A continuous rated current, 0.14 mH inductance, 50 Hz operating frequency, IP00 enclosure, thermal class B, 87 W total power loss at 40 °C ambient."},{"question":"Will 4EP3800-1GS00 drop into a panel specified around 5SJ3140-7?","answer":"No — 5SJ3140-7 is a single-pole 40 A miniature circuit breaker (MCB) with a completely different form factor, function, and wiring scheme. The 4EP3800-1GS00 is a 3-phase power choke with flat-type terminals; it cannot be substituted for an MCB or vice versa without a full panel redesign."},{"question":"What compliance documentation does Siemens provide for 4EP3800-1GS00?","answer":"The part is designed to EN 61558-2-20 (safety of transformers, reactors, and power supply units). Standard Siemens documentation includes a declaration of conformity and technical data sheet. Specific RoHS/REACH/UL status should be confirmed at quote time, as the evidence does not list those marks."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3800-1GS00","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/4EP3800-1GS00 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}}