{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3621-0AV00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3621-0AV00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3621-0AV00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3621-0AV00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 4EU3621-0AV00-0A commutating choke for converter, 3-phase, 400V AC, 389A rated current, 432A max, 0.14mH inductance, IP00, flat-type terminals, UL/CSA recognized.","salesMarkdown":"The Siemens 4EU3621-0AV00-0A is a 3-phase commutating choke for converter applications, rated for 389 A continuous with a 432 A maximum at 60 Hz. It operates at 400 V AC, 50–60 Hz, and delivers 0.14 mH inductance with an 8% relative inductive voltage drop at rated current. That 8% drop is the key sizing figure — it limits the di/dt on the converter's semiconductors, so the choke must match the drive's switching frequency and current ripple requirements. The IP00 open-frame construction means it's intended for enclosure mounting, not standalone floor placement. Thermal class H (180 °C) insulation and a 55 °C ambient rating give it headroom in warm cabinets. Dimensions are 0.35 m wide × 0.321 m high × 0.237 m deep — a substantial block that needs a dedicated mounting plate or chassis rail, not a standard DIN rail. Main circuit connections are flat-type terminals, so plan for busbar or cable lugs with the correct hole pattern. The IP00 rating means it's open to dust and touch; the enclosure must provide the required ingress protection for the final installation. Total power loss at rated load is 788 W — 528 W in the coil and 260 W in the iron core. That's significant heat to vent; the enclosure must have forced-air cooling or sufficient natural convection clearance. The thermal class H winding (180 °C) provides a safety margin, but the 55 °C ambient limit means derating above that temperature is required.","metaTitle":"Siemens 4EU3621-0AV00-0A Commutating Choke, 389A, 400V, 0.14","metaDescription":"Siemens 4EU3621-0AV00-0A commutating choke for converter, 3-phase, 389A rated, 432A max, 400V, 0.14mH, IP00, UL/CSA recognized. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.237m","Width":"0.35m","Height":"0.321m","Maximum":"432A","Rated Value":"389A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00014H","Power loss [W] of the coil":"528W","Operating voltage rated value":"400, 400V","Ambient temperature rated value":"55°C","Operating frequency rated value":"50 ... 60Hz","Power loss [W] of the iron core":"260W","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"flat connector","Relative inductive drop in voltage on the measurement level current, voltage and frequency":"8%"}},"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=220857&mlfb=4EU3621-0AV00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3621-0AV00-0A/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EU3621-0AV00-0A and how do I get a price?","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 price and lead time."},{"question":"Will 4EU3621-0AV00-0A drop into a panel that was specified around 3RV6011-0CA10 without rewiring?","answer":"No — the 3RV6011-0CA10 is a motor-protective circuit breaker (S00 frame, 45 mm wide, DIN-rail mount), while this choke is a 350 mm wide, 237 mm deep open-frame component with flat-type terminals. The footprint, mounting method, and connection type are completely different; panel rework is required."},{"question":"What compliance documentation does this brand provide for 4EU3621-0AV00-0A?","answer":"The part is UL/CSA recognized per EN 61558-2-20, which covers safety of transformers, reactors, and power supply units. Standard Siemens documentation includes a declaration of conformity and the UL recognition file number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3621-0AV00-0A","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/4EU3621-0AV00-0A 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}}