{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU5021-0AC00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU5021-0AC00","canonicalUrl":"https://aoctrl.com/siemens/4EU5021-0AC00","factsUrl":"https://aoctrl.com/api/mcp/products/4EU5021-0AC00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 4EU5021-0AC00 commutating choke for converter, 3-phase, 380V AC, 617A rated current, 50Hz, IP00, Class H insulation, flat-type terminals.","salesMarkdown":"## Commutating choke for converter duty The Siemens 4EU5021-0AC00 is a 3-phase commutating choke (line reactor) rated for 617 A continuous at 380 V AC, 50 Hz. It is designed for converter input circuits where it limits di/dt, reduces harmonics, and protects the rectifier from line notching and commutation notches. The 0.00018 H inductance per phase and 15.62 % relative inductive voltage drop define its impedance — this is the figure that governs how much fault current the choke limits and how much voltage sag the DC link sees under load. Rated 617 A AC continuous, the choke is sized for the input of a converter driving a motor load drawing roughly that line current — think a 315–355 kW drive on 400 V class supply. The DC rating of 756.1 A tells you the choke can handle the higher RMS current in DC-link applications if repurposed, but the primary role is AC line-side. The 1310 W coil loss and 345 W iron loss sum to about 1.65 kW of heat that must be ventilated out of the enclosure; IP00 means no ingress protection — the choke is an open-frame component that goes inside a panel or cabinet, never in a washdown or dusty zone. Class H insulation (180 °C rated) gives thermal headroom for the 40 °C ambient rating, so it can sit in a warm cabinet without derating. ## Physical footprint and connections Dimensions: 0.518 m wide × 0.565 m high × 0.318 m deep — a substantial block that needs a floor-mount or heavy shelf in the panel, not a DIN rail. Main circuit connections are flat-type terminals (bus-bar compatible), not screw clamps; plan for bolted copper bars or braided straps rated for the full 617 A. The three phases enter and exit on the same terminal plane, so layout the bus work accordingly.","metaTitle":"Siemens 4EU5021-0AC00 Commutating Choke, 617A 3-Phase 380V","metaDescription":"Siemens 4EU5021-0AC00 commutating choke for converter, 617A rated, 380V AC, 3-phase, 50Hz, IP00, Class H insulation. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.318m","Width":"0.518m","Height":"0.565m","Maximum":"617A","Rated Value":"617A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"756.1A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00018H","Power loss [W] of the coil":"1 310W","Operating voltage rated value":"380V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"345W","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":"15.62%"}},"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=444805&mlfb=4EU5021-0AC00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU5021-0AC00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 4EU5021-0AC00?","answer":"Rated 617 A continuous at 380 V AC, 3-phase, 50 Hz. Inductance 0.00018 H per phase, relative inductive voltage drop 15.62 %. DC rating 756.1 A. Class H insulation, IP00 open-frame design."},{"question":"Where can I buy 4EU5021-0AC00 and get current pricing?","answer":"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 commercial offer."},{"question":"What are the physical dimensions of 4EU5021-0AC00?","answer":"Width 0.518 m, height 0.565 m, depth 0.318 m. Flat-type terminals for main circuit connection. Not a DIN-rail mount; requires floor or shelf mounting in the panel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU5021-0AC00","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/4EU5021-0AC00 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}}