{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3951-0BA10-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3951-0BA10-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3951-0BA10-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3951-0BA10-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EU3951-0BA10-0A Netzdrossel mains choke, 360 A AC, 690 V, 0.27 mH, 50/60 Hz, IP00, thermal class H.","salesMarkdown":"## What this mains choke does on the line The Siemens 4EU3951-0BA10-0A is a three-phase mains choke (Netzdrossel) rated for 360 A AC at 690 V, 50/60 Hz, with 0.27 mH inductance. It sits between the supply and a variable-frequency drive or converter, smoothing line-side harmonics and limiting inrush current. The 9.2 % relative inductive drop at rated current tells you the voltage it eats at full load — factor that into your drive bus design. ## Thermal and enclosure reality IP00 means no enclosure — this choke is a bare core-and-coil assembly for cabinet mounting, not a standalone box. Thermal class H (180 °C winding hot-spot) and a 45 °C ambient rating give headroom in a warm panel, but the combined copper and iron losses run about 1554 W (975 W coil + 579 W iron core). That heat has to leave the cabinet; plan forced ventilation or a properly sized enclosure. ## Physical fit and connections Dimensions: 0.385 m high, 0.41 m wide, 0.229 m deep. The main circuit terminates on flat connectors — no ring lugs or bus-bar studs. Verify your panel's mounting plate and bus-bar layout against those dimensions before committing the cutout. Designed to EN 61558-2-20, the standard for separating transformers and chokes. The 690 V rated voltage covers 400 V and 480 V systems with margin; the 50/60 Hz rating means it works on either line frequency without derating.","metaTitle":"Siemens 4EU3951-0BA10-0A Mains Choke, 360 A, 690 V, 0.27 mH","metaDescription":"Siemens 4EU3951-0BA10-0A mains choke (Netzdrossel). 360 A AC, 690 V, 0.27 mH, 50/60 Hz, IP00, thermal class H. Mature lifecycle. 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","title":"4EU3951-0BA10-0A","Height":"0.385m","description":"MAINS CHOKE; UN(V):690; F(HZ):60; IEFF(A):360; LN(MH):0,27; EN 61558-2-20; TA/ISOKL:45 /H","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Designation":"Netzdrossel","protection class IP":"IP00","current at AC maximum":"360A","Inductivity Rated Value":"0.00027H","power loss [W] of the coil":"975W","Operating Voltage Rated Value":"690, 690V","Ambient Temperature Rated Value":"45°C","Operating Frequency Rated Value":"50 ... 60Hz","power loss [W] of the iron core":"579W","thermal class acc. to IEC 60085":"H","operational current at AC rated value":"324A","Type Of Electrical Connection For Main Current Circuit":"flat connector","Relative Inductive Drop In Voltage For Rated Value Of The Current, Voltage And Frequency":"9.2%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d56debab5495e9d9fc136ac29cfbfe27.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=285439&mlfb=4EU3951-0BA10-0A"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 4EU3951-0BA10-0A?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and confirmed availability at quote time."},{"question":"What are the key ratings for 4EU3951-0BA10-0A?","answer":"360 A AC maximum current, 690 V rated voltage, 0.27 mH inductance, 50/60 Hz operating frequency, 9.2 % relative inductive drop at rated current, and thermal class H (180 °C)."},{"question":"What compliance documentation does this brand provide for 4EU3951-0BA10-0A?","answer":"The part is designed to EN 61558-2-20. Standard Siemens documentation includes the declaration of conformity and CE marking; specific RoHS/REACH/UL documentation should be confirmed at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3951-0BA10-0A","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/4EU3951-0BA10-0A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}