{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3951-4UB00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3951-4UB00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3951-4UB00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3951-4UB00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 4EU3951-4UB00-0A mains choke for frequency converters, 3-phase, 560 A max / 504 A rated, 690 V AC, 50 Hz, 4 % voltage drop, IP00, flat-type terminals.","salesMarkdown":"It carries a maximum current of 560 A and a rated continuous current of 504 A at 690 V AC, 50 Hz — the rated figure is the one that governs thermal sizing in a continuous-duty application; the 560 A maximum covers short-duration overloads the drive might draw during acceleration. That impedance limits harmonic currents and reduces the peak-to-peak ripple on the DC bus of the connected drive. A 4 % choke is a common choice for general-purpose drive applications where harmonic mitigation is needed without excessive voltage drop under load. Power loss splits between the coil (540 W) and the iron core (200 W), totaling 740 W at rated conditions. Thermal class H insulation (180 °C rated) gives headroom for hot spots and overload conditions. This choke is sized for a 690 V AC three-phase line feeding a frequency converter. Physical dimensions are 0.41 m wide by 0.385 m tall by 0.229 m deep, so it needs a panel floor or mounting plate with that footprint plus clearance for ventilation and busbar routing. The IP00 protection class means the choke is open-frame; it must be installed inside a cabinet that provides the required ingress protection for the overall assembly. No washdown or outdoor exposure is permitted without an additional enclosure. This is not a part you will find on a distributor shelf in high volume.","metaTitle":"Siemens 4EU3951-4UB00-0A Mains Choke, 560A, 690V, 50Hz","metaDescription":"Siemens 4EU3951-4UB00-0A mains choke for frequency converters. 3-phase, 560A max, 690V AC, 50Hz, 4% voltage drop. UL/CSA recognized. IP00. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.229m","Width":"0.41m","Height":"0.385m","Maximum":"560A","Rated Value":"504A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel f. FU","Protection class IP":"IP00","Inductivity rated value":"0.00009H","Power loss [W] of the coil":"540W","Operating voltage rated value":"690V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"200W","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=339519&mlfb=4EU3951-4UB00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3951-4UB00-0A/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 4EU3951-4UB00-0A?","answer":"It is a 3-phase mains choke rated 504 A continuous (560 A max) at 690 V AC, 50 Hz, with a 4 % voltage drop. Power loss is 740 W total at rated conditions. Thermal class H insulation. IP00 open-frame construction."},{"question":"What compliance documentation does this choke carry?","answer":"It is UL and CSA recognized per EN 61558-2-20, the standard for reactors and chokes. The IP00 rating and thermal class H per IEC 60085 are also documented."},{"question":"Where can I buy 4EU3951-4UB00-0A?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3951-4UB00-0A","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/4EU3951-4UB00-0A 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}}