{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU4521-0BV08-0B","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU4521-0BV08-0B","canonicalUrl":"https://aoctrl.com/siemens/4EU4521-0BV08-0B","factsUrl":"https://aoctrl.com/api/mcp/products/4EU4521-0BV08-0B","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 3-phase, 400 V, 110 A at 8 kHz switching frequency, 0.6 mH, IP00, Class H insulation, flat-type terminals.","salesMarkdown":"The Siemens SIDAC 4EU4521-0BV08-0B is a 3-phase output reactor rated for 110 A continuous at a switching frequency of 8 kHz, with 0.6 mH inductance per phase. It sits between the VFD output and the motor leads, smoothing the PWM waveform and limiting the voltage rise rate (dV/dt) that can cause premature motor insulation failure on long cable runs. The 400 V AC rating and Class H thermal insulation (180 °C) mean it handles the reflected-wave stress common in drives feeding motors more than 30 meters away. The 110 A maximum at 8 kHz switching frequency is the key fit parameter — it tells you the reactor is sized for a drive output stage that switches at that carrier frequency. If your drive runs at a higher switching frequency, the core losses increase and you may need to derate the current. The 0.6 mH inductance is a moderate value, typical for general-purpose motor protection on 400 V systems. It limits the peak-to-peak ripple current but doesn't add excessive voltage drop at the motor terminals. IP00 means this is an open-frame component — no enclosure, no drip shield. It's intended for mounting inside a cabinet where the ambient temperature stays at or below 40 °C, as stated in the rating. The flat-type terminals accept busbar or large cable lugs; plan for a panel-mount bracket since there's no DIN-rail clip.","metaTitle":"Siemens SIDAC 4EU4521-0BV08-0B Output Reactor, 110A, 0.6 mH","metaDescription":"Siemens SIDAC 4EU4521-0BV08-0B output reactor, 3-phase, 110A at 8 kHz switching frequency, 0.6 mH, IP00, 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":"0.29m","Width":"0.46m","Height":"0.43m","Maximum":"110A","Minimum":"0Hz","Rated Value":"8 000Hz","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product brand name":"SIDAC","Product designation":"output reactor","Protection class IP":"IP00","Inductivity rated value":"0.0006H","Ambient temperature rated value":"40°C","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"flat connector"}},"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=100277&mlfb=4EU4521-0BV08-0B","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU4521-0BV08-0B/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU4521-0BV08-0B","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/4EU4521-0BV08-0B 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}}