{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU2522-1AA08-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU2522-1AA08-0AA3","canonicalUrl":"https://aoctrl.com/siemens/4EU2522-1AA08-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/4EU2522-1AA08-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EU2522-1AA08-0AA3, 3-phase commutating choke for converters, 400V AC, 50Hz, 125A max / 112.5A rated, 0.2mH, IP20, flat-type terminals.","salesMarkdown":"The Siemens 4EU2522-1AA08-0AA3 is a 3-phase commutating choke for converter applications — what you'd call a line reactor in plain English. It's rated for 400V AC at 50Hz, with a maximum continuous current of 125A and a rated value of 112.5A. That 4% drop figure is the key number for sizing: it tells you how much voltage the choke eats at full load. Out here in the grease, a choke like this sits between the line and a variable-frequency drive or DC drive, smoothing out the harmonics and protecting the rectifier from nasty current spikes. If you've ever buried a drive because the line was too dirty, you know the value of a properly sized reactor. The winding is Class H insulation per IEC 60085, good for a 40°C ambient. That's the thermal class for high-temperature spots — motor control centers near ovens or in hot machine rooms. The IP20 housing means it's for indoor panel use only, not washdown areas. Physical footprint: 0.225m wide, 0.21m tall, 0.16m deep. That's a panel-mount part, not DIN-rail. The flat-type terminals on the main circuit take a busbar or a heavy lug — no spring-cage here. Plan for bolted connections and enough clearance around the terminals for a wrench. The 112.5A rated current is the continuous figure for a 40°C ambient. If your panel runs hotter, derate accordingly. The 125A maximum is the thermal limit under the same conditions — don't plan to run at 125A continuously unless you've got airflow or a lower ambient.","metaTitle":"4EU2522-1AA08-0AA3 Commutating Choke, 125A, 3-Phase, 400V, 5","metaDescription":"Siemens 4EU2522-1AA08-0AA3 commutating choke for converters. 3-phase, 400V AC, 50Hz, 125A max, 112.5A rated, 0.2mH, IP20, flat connectors. Mature lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.16m","Width":"0.225m","Height":"0.21m","Maximum":"125A","Rated Value":"112.5A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"153.1A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP20","Inductivity rated value":"0.0002H","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","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":"4%"}},"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=64690&mlfb=4EU2522-1AA08-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU2522-1AA08-0AA3/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU2522-1AA08-0AA3","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/4EU2522-1AA08-0AA3 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}}