{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU2531-3UA00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU2531-3UA00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU2531-3UA00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU2531-3UA00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 3-phase, 460V, 146A max / 131.4A rated, 0.03 mH, 3 kHz switching frequency, IP00, flat-type terminals, UL/CSA recognized.","salesMarkdown":"The Siemens SIDAC 4EU2531-3UA00-0A is a 3-phase output reactor — a choke placed between a variable-frequency drive and the motor to smooth the PWM waveform and limit voltage spikes from long cable runs. It is rated for a maximum continuous current of 146 A at 120 Hz and a rated operational current of 131.4 A, with an inductance of 0.03 mH (30 µH). The switching-frequency rating of 3 kHz tells you the reactor is designed for drives running a typical IGBT carrier frequency up to that point; above that, core losses climb and the filtering effect degrades. The 460 V line-to-line voltage rating (from the description field) and Class H insulation (thermal class per IEC 60085) mean the winding insulation withstands sustained temperatures up to 180 °C, with a 40 °C ambient rating. Total power loss at rated load is 221.5 W — 123 W in the coil and 98.5 W in the iron core — so the panel needs to move that heat out; IP00 open-frame construction means it is intended for enclosure mounting with forced or natural ventilation, not standalone outdoor use. This reactor mounts in the motor branch circuit, downstream of the drive output and upstream of the motor. The flat-type terminals accept bus-bar or lug connections, typical for panel builds at this current level. Dimensions are 0.22 m wide by 0.21 m tall by 0.16 m deep — roughly 9 by 8 by 6 inches — so it occupies a significant footprint on the backplate; plan the gland plate and cable routing accordingly. The reactor is recognized under UL and CSA standards, tested to EN 61558-2-20 (safety of transformers, reactors, and power supply units). This covers the essential safety and flammability requirements for industrial control panels in North American and European installations.","metaTitle":"Siemens SIDAC 4EU2531-3UA00-0A Output Reactor, 146A, 3 kHz","metaDescription":"Siemens SIDAC 4EU2531-3UA00-0A 3-phase output reactor, 146A max / 131.4A rated, 0.03 mH, 3 kHz switching frequency, IP00, UL/CSA recognized. Sourced to order.","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":"120Hz","Minimum":"0Hz","Rated Value":"3 000Hz","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":"146A","Inductivity Rated Value":"0.00003H","power loss [W] of the coil":"123W","Ambient Temperature Rated Value":"40°C","power loss [W] of the iron core":"98.5W","thermal class acc. to IEC 60085":"H","operational current at AC rated value":"131.4A","Type Of Electrical Connection For Main Current Circuit":"flat connector"}},"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=112973&mlfb=4EU2531-3UA00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU2531-3UA00-0A/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EU2531-3UA00-0A?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the switching frequency rating of this reactor?","answer":"The rated switching frequency is 3 kHz. This is the IGBT carrier frequency the reactor is designed for; operating above it increases core losses and reduces filtering effectiveness."},{"question":"What compliance documentation does this reactor carry?","answer":"It is UL and CSA recognized per EN 61558-2-20. The insulation system is Class H per IEC 60085."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU2531-3UA00-0A","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/4EU2531-3UA00-0A 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}}