{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU2521-0AS00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU2521-0AS00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU2521-0AS00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU2521-0AS00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 3-phase, 60A maximum, 7.4 kHz switching frequency, 0.8 mH, IP00, free cable endings.","salesMarkdown":"The Siemens SIDAC 4EU2521-0AS00-0A is a 3-phase output reactor — a line choke placed between a variable-frequency drive and the motor to limit dv/dt, reduce capacitive coupling currents, and protect the motor windings from reflected-wave voltage spikes on long cable runs. It's rated for a 7.4 kHz switching frequency, which means it's matched to modern IGBT drives running carrier frequencies in that range; the 0.8 mH inductance (0.0008 H) and 60 A maximum current define the motor load it can handle. The 60 A maximum current (Ithmax 1) is the thermal continuous rating — this reactor can carry 60 A indefinitely at its 40 °C ambient. The detailed spec line gives 54 A at 460 V, 50/60 Hz, which is the real-world motor current for a 460 V drive application. The 7.4 kHz switching frequency rating is critical: if your drive's carrier frequency is set higher than that, the core saturates and the reactor loses its filtering effectiveness. The 0.8 mH inductance and 5.68 % impedance (Uk) are the values that govern the voltage drop and the reflected-wave attenuation — this is a standard-duty output reactor, not a heavy-duty dv/dt filter. ## Thermal and insulation class Rated ambient temperature is 40 °C. The insulation system is Class H per IEC 60085 — that's 180 °C hot-spot capability, which gives generous headroom for overloads and high-ambient installations. Total power loss splits between the coil (160 W) and the iron core (130 W), so at full load this reactor dumps about 290 W of heat into the enclosure. That matters for panel cooling calculations. Width 0.22 m, height 0.21 m, depth 0.16 m. Free cable endings for main circuit connection.","metaTitle":"Siemens SIDAC 4EU2521-0AS00-0A Output Reactor, 60A 3-Phase","metaDescription":"Siemens SIDAC 4EU2521-0AS00-0A 3-phase output reactor, 60A max, 7.4 kHz switching frequency, 0.8 mH, IP00. Mature lifecycle, sourced to order. Request RFQ for current pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.16m","Width":"0.22m","Height":"0.21m","Maximum":"60A","Rated Value":"7 400Hz","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":"0.0008H","Power loss [W] of the coil":"160W","Ambient temperature rated value":"40°C","Power loss [W] of the iron core":"130W","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"free cable endings"}},"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=362608&mlfb=4EU2521-0AS00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU2521-0AS00-0A/alternatives.json"},"ai":{"faq":[{"question":"Does 4EU2521-0AS00-0A drop into a panel designed for a miniature circuit breaker like 5SJ6325-7RC?","answer":"No, this is a completely different component class — a 3-phase output reactor for VFD output filtering, not a DIN-rail miniature circuit breaker. The 5SJ6325-7RC is a 3-pole MCB with 25 A rating and IP20 touch protection; this reactor is an open-frame choke with free cable endings, IP00, and 60 A rating. They serve different functions and have different mounting requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU2521-0AS00-0A","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/4EU2521-0AS00-0A 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}}