{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3021-0AA10-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3021-0AA10-0AA0","canonicalUrl":"https://aoctrl.com/siemens/4EU3021-0AA10-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3021-0AA10-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 4EU3021-0AA10-0AA0, commutating choke for converter, 3-phase, 290 V AC, 547 A max, 492.3 A rated, IP00, flat-type terminal.","salesMarkdown":"## What this choke is and where it runs It carries a maximum continuous current of 547 A and a rated current of 492.3 A, with an inductance of 0.000025 H (25 µH) and a relative inductive voltage drop of 2.62% at rated conditions. That 2.62% drop is a typical value for a line reactor sized to limit harmonic distortion and di/dt stress on the converter's input rectifier — not a tuning choke for a drive output, but a line-side smoothing element. ## Thermal and environmental limits Thermal class H (IEC 60085) means the coil insulation withstands 180 °C hot-spot temperature — essential for a choke pulling 230 W of copper loss plus 80 W of iron-core loss at rated load. The ambient temperature rating of 40 °C is the reference; above that the current must be derated per the manufacturer's curve, which is typical for any IP00, open-frame reactor. IP00 means no ingress protection — this choke belongs in a clean, dry, ventilated enclosure, not on a washdown line or outdoors. ## Physical fit and connection Dimensions are 0.3 m wide × 0.269 m high × 0.211 m deep — roughly the footprint of a small suitcase. The main current circuit uses flat-type terminals (bus-bar or cable-lug connection), not screw-clamp or spring-cage. That means the panel builder needs to plan for bolted connections with appropriate lug size and torque, not a DIN-rail terminal block. The choke is not designed for snap-on DIN mounting; it is a chassis-mount or bolted-to-subplate component. ## Standard compliance The design follows EN 61558-2-20, the safety standard for small transformers and chokes. That covers dielectric strength, creepage distances, and thermal endurance. No UL or CSA listing is stated in the evidence, so for North American installs the integrator should verify local code acceptance or request the UL-recognized variant.","metaTitle":"Siemens 4EU3021-0AA10-0AA0 Commutating Choke, 547A, 50Hz","metaDescription":"Siemens 4EU3021-0AA10-0AA0 commutating choke for converters. 3-phase, 290V, 547A max, 492.3A rated, IP00, thermal class H. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.211m","Width":"0.3m","Height":"0.269m","Maximum":"547A","Rated Value":"492.3A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"670.3A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.000025H","Power loss [W] of the coil":"230W","Operating voltage rated value":"290V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"80W","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":"2.62%"}},"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=507538&mlfb=4EU3021-0AA10-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3021-0AA10-0AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3021-0AA10-0AA0","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/4EU3021-0AA10-0AA0 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}}