{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU4521-0AK00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU4521-0AK00","canonicalUrl":"https://aoctrl.com/siemens/4EU4521-0AK00","factsUrl":"https://aoctrl.com/api/mcp/products/4EU4521-0AK00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EU4521-0AK00 commutating choke for converter, 3-phase, 575V AC, 1310A AC rated current, 24µH, IP00, flat-type terminals.","salesMarkdown":"The Siemens 4EU4521-0AK00 is a 3-phase commutating choke for converter applications, rated for 1310 A AC at 575 V with an inductance of 24 µH. This is the line reactor that sits between the drive and the motor or between the supply and the drive — it limits current rise during commutation, reduces harmonic distortion, and protects the converter's semiconductors from di/dt stress. The peak current rating of 1638 A gives you the short-term overload capability; a drive drawing 1310 A RMS will see peak currents approaching that during regenerative braking or fault clearing. The DC rated current of 1605.3 A applies when the choke is used on the DC link side of a converter, which is less common but supported. IP00 means no enclosure — this is a panel-mount component that needs to be inside a cabinet with its own IP rating. The flat-type terminals accept busbar or cable lugs; plan for 0.46 m width and 0.435 m height on the mounting surface, with 0.293 m depth projecting into the cabinet. The 700 W coil loss plus 404 W iron core loss means roughly 1.1 kW of heat to vent — factor that into your cabinet cooling calculation. ## Deployment context This choke is sized for large 3-phase converter systems — think 500–800 kW drives feeding pumps, conveyors, or compressors in industrial plants. The 575 V rating matches North American 600 V class systems (575 V is the standard nominal voltage for Canadian and some US industrial grids). The 50/60 Hz frequency rating means it works on either supply; the inductance value is the same at both frequencies, but the 4% voltage drop is measured at the rated frequency.","metaTitle":"Siemens 4EU4521-0AK00 Commutating Choke, 1310A AC, 575V, 3-P","metaDescription":"Siemens 4EU4521-0AK00 commutating choke for converters. Rated 1310A AC at 575V, 3-phase, 24µH, IP00. Mature lifecycle; sourced to order. Request RFQ for pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.293m","Width":"0.46m","title":"4EU4521-0AK00","Height":"0.435m","description":"COMMUTATING CHOKE FOR CONVERTER; PHASES:3; UN1(V):575; ITHMAX 1(A) / F1(HZ):1310 /50; I LN (A):1310; UK(%):4; LN(MH):0,0245; TA/ISOKL:40 /H; IP00; TYPE OF TERMINALS:FLAT-TYPE TERMINAL; VDE 0532 >UL/CSA-RECOGNIZED<","Peak Current":"1 638A","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Designation":"Kommut.-Drossel f. Stromrichter","protection class IP":"IP00","current at AC maximum":"1 310A","Inductivity Rated Value":"2.4E-5H","current at DC rated value":"1 605.3A","power loss [W] of the coil":"700W","Operating Voltage Rated Value":"575, 575V","Ambient Temperature Rated Value":"40°C","Operating Frequency Rated Value":"60 ... 50Hz","power loss [W] of the iron core":"404W","thermal class according to IEC 60085":"H","operational current at AC rated value":"1 310A","Type Of Electrical Connection For Main Current Circuit":"flat connector","Relative Inductive Drop In Voltage For Rated Value Of The Current, Voltage And Frequency":"4%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3ca402ce8a45519562659baa7db099fe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=487431&mlfb=4EU4521-0AK00"},"ai":{"faq":[{"question":"How do I get pricing and availability for 4EU4521-0AK00?","answer":"Submit an RFQ through this listing. We source this part through independent distribution and confirm current pricing and lead time at quote time — no automated stock figures here."},{"question":"What are the key specifications of 4EU4521-0AK00?","answer":"It is a 3-phase commutating choke rated 1310 A AC at 575 V, 24 µH inductance, 4% inductive voltage drop, IP00, with flat-type terminals. Thermal class H insulation, 40 °C ambient rating."},{"question":"What compliance documentation is available for 4EU4521-0AK00?","answer":"The part is VDE 0532 certified and UL/CSA-recognized per the manufacturer description. RoHS and REACH compliance documentation should be available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU4521-0AK00","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/4EU4521-0AK00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}