{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3031-2UA00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3031-2UA00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3031-2UA00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3031-2UA00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 4EU3031-2UA00-0A, 3-phase, 460 V, 370 A AC max, 333 A rated current, 0.011 mH, IP00, flat-type terminals.","salesMarkdown":"The Siemens SIDAC 4EU3031-2UA00-0A is a 3-phase output reactor rated for 460 V AC. It handles a maximum AC current of 370 A at 120 Hz, with a rated operational current of 333 A. The 0.011 mH inductance (1.1E-5 H) and 1.15 % impedance (UK) are sized to limit voltage spikes and reduce harmonic distortion on the motor cable — a common need on long drive-to-motor runs where reflected wave events can punch through winding insulation. The 370 A maximum at 120 Hz is the thermal limit under worst-case switching conditions; the 333 A rated current is the continuous duty figure you size the drive against. Both exceed what a typical 200–250 HP drive would pull, so this reactor pairs with a large-frame VFD driving a motor on a conveyor, pump, or fan. The 3 kHz switching frequency (F TAKT) matches the carrier frequency of many modern PWM drives — if your drive runs a higher carrier (4–8 kHz), you need to check the derating curve because the iron-core losses climb with frequency. The IP00 enclosure means it has no drip shield or finger guard; it mounts inside a cabinet, not on the wall or in a washdown area. Flat-type terminals accept busbar or large cable lugs — plan for a bolted connection, not a spring clamp. ## Thermal class and power loss Total power loss is 385 W — 205 W in the coil and 180 W in the iron core. At a 40 °C ambient, the thermal class H insulation gives a 180 °C hot-spot limit, so the reactor can sit in a warm cabinet without forced cooling as long as the enclosure has enough natural convection. Dimensions are 0.3 m wide × 0.26 m tall × 0.21 m deep — plan for a footprint roughly the size of a shoebox, mounted on a flat panel or subplate, not a DIN rail.","metaTitle":"Siemens SIDAC 4EU3031-2UA00-0A Output Reactor, 370A AC, 460V","metaDescription":"Siemens SIDAC 4EU3031-2UA00-0A output reactor, 3-phase, 460V, 370A AC max, 333A rated. IP00, flat connectors, UL/CSA recognized. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.21m","Width":"0.3m","title":"4EU3031-2UA00-0A","Height":"0.26m","Maximum":"120Hz","Minimum":"0Hz","Rated Value":"3 000Hz","description":"OUTPUT CHOKE; PHASES:3; UN1(V):460; ITHMAX 1(A) / F1(HZ):370 /120; F TAKT(KHZ):3; I LN (A):333; LN(MH):0,011; UK(%):1,15; TA/ISOKL:40 /H; IP00; TYPE OF TERMINALS:FLAT-TYPE TERMINAL; EN 61558-2-20 >UL/CSA-RECOGNIZED<","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Brand Name":"SIDAC","Product Designation":"output reactor","protection class IP":"IP00","current at AC maximum":"370A","Inductivity Rated Value":"1.1E-5H","power loss [W] of the coil":"205W","Ambient Temperature Rated Value":"40°C","power loss [W] of the iron core":"180W","thermal class according to IEC 60085":"H","operational current at AC rated value":"333A","Type Of Electrical Connection For Main Current Circuit":"flat connector"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/379ad5d2529fc0b4b414e82a08508b98.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=63825&mlfb=4EU3031-2UA00-0A"},"ai":{"faq":[{"question":"Where can I buy 4EU3031-2UA00-0A and how do I 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 electrical ratings for 4EU3031-2UA00-0A?","answer":"The reactor is rated for 460 V AC, 3-phase, with a maximum AC current of 370 A at 120 Hz and a rated operational current of 333 A. Inductance is 0.011 mH, switching frequency is 3 kHz."},{"question":"What compliance documentation does this reactor carry?","answer":"The part carries UL/CSA recognition per EN 61558-2-20, as noted on the label. It is designed for IEC 60085 thermal class H insulation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3031-2UA00-0A","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/4EU3031-2UA00-0A 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}}