{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3021-2EB00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3021-2EB00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3021-2EB00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3021-2EB00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 3-phase AC, 120A max, 7000Hz rated frequency, 0.24mH, 400V, IP00, thermal class H, free cable endings.","salesMarkdown":"The Siemens SIDAC 4EU3021-2EB00-0A is a 3-phase output reactor rated for 120A maximum continuous current at 400V AC, with a rated switching frequency of 7000Hz and 0.24mH inductance. It's designed to sit between a variable-frequency drive and the motor, smoothing the PWM waveform and limiting voltage spikes that would otherwise stress motor windings on long cable runs. Thermal class H (180°C insulation system) tells you the core and coil can run hot under full load without degrading the magnet wire varnish. At 0.3m wide, 0.26m tall, and 0.21m deep, this reactor takes up a noticeable footprint on the backplate — not something you drop into a crowded DIN-rail section. The free cable endings (no terminal blocks) mean you'll land the power conductors directly, typically with ring lugs or ferrules. The 120A rating covers most 37–45 kW drives at 400V, but the 7000Hz switching frequency is specific to higher-carrier-frequency IGBT stages; if your drive runs at 4kHz or 16kHz, the core losses and temperature rise change. Total power loss sums to 369W (210W coil + 159W iron) at rated conditions — that's real heat that needs to leave the enclosure, so factor it into your thermal budget. ## Installation notes Mount the reactor as close to the drive output as practical — long unshielded cable between drive and reactor defeats the purpose. The IP00 rating means no drip shield or dust seal; keep it inside a clean, dry enclosure. Ambient temperature rated at 40°C; above that, derate the current or add forced airflow. The free cable endings accept conductor sizes appropriate for 120A — typically 35–50 mm² copper. Thermal class H allows a 180°C hot-spot temperature, but the surrounding panel components (wiring, terminal blocks, adjacent devices) must be rated for the radiated heat.","metaTitle":"Siemens SIDAC 4EU3021-2EB00-0A Output Reactor, 120A, 7000Hz","metaDescription":"Siemens SIDAC 4EU3021-2EB00-0A output reactor, 3-phase, 120A max, 7000Hz rated frequency, 0.24mH, 400V, IP00, thermal class H. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.21m","Width":"0.3m","Height":"0.26m","Maximum":"120A","Minimum":"0Hz","Rated Value":"7 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":"0.00024H","Power loss [W] of the coil":"210W","Ambient temperature rated value":"40°C","Power loss [W] of the iron core":"159W","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=135656&mlfb=4EU3021-2EB00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3021-2EB00-0A/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EU3021-2EB00-0A and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What are the key specifications of 4EU3021-2EB00-0A?","answer":"It's a 3-phase output reactor rated 120A maximum at 400V AC, with 0.24mH inductance and a 7000Hz switching frequency. Power loss is 369W total (210W coil + 159W iron) at 40°C ambient. Thermal class H insulation. Dimensions are 0.3m wide by 0.26m tall by 0.21m deep. IP00 open-frame construction with free cable endings."},{"question":"Will 4EU3021-2EB00-0A drop into a panel specified around 5SL3232-6MB?","answer":"No — the 5SL3232-6MB is a 2-pole miniature circuit breaker (DIN-rail mount, 36mm wide, 90mm tall). This 4EU3021-2EB00-0A is a 3-phase output reactor (300mm wide, 260mm tall) with free cable endings. Completely different form factor and function; no direct panel swap without rewiring and re-layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3021-2EB00-0A","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/4EU3021-2EB00-0A 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}}