{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU3951-0AV00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU3951-0AV00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU3951-0AV00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU3951-0AV00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 3-phase AC, 115 A max, 3000 Hz switching frequency, 0.0011 H, IP00, flat-type terminals.","salesMarkdown":"It carries an inductance of 0.0011 H and is built to thermal class H per IEC 60085, meaning the winding insulation can handle sustained temperatures of 180 °C — critical for drives running high-switching-frequency PWM waveforms that generate additional iron and copper losses. The reactor dissipates 573 W in the coil and 328 W in the iron core at rated conditions, so the enclosure needs forced ventilation or generous free-air volume around the IP00 chassis. This is a line-side or motor-side choke designed to smooth the output of a variable-frequency drive, limiting voltage spikes and reducing common-mode currents that can damage motor bearings or trip upstream protection. The manufacturer classifies this part as mature, which typically means no active development or expansion of the product line, but it remains in the catalog for ongoing production and service support. No official successor order code has been issued; if you are replacing a failed unit in an existing line, this is the direct drop-in. For new designs, verify that the 3000 Hz switching-frequency rating matches your drive's PWM carrier — a mismatch can saturate the core or cause excessive heating. ## Integration considerations The IP00 protection class means the reactor is not touch-safe and requires installation inside a locked or tool-accessible enclosure. Ambient temperature rating of 40 °C is the baseline; derate the 115 A maximum if the cabinet ambient exceeds that. The flat-type terminals are sized for high-current connections — expect to land M10 or similar busbar hardware, not spring-clamp wiring.","metaTitle":"Siemens SIDAC 4EU3951-0AV00-0A Output Reactor, 115A, 3 kHz","metaDescription":"Siemens SIDAC 4EU3951-0AV00-0A output reactor, 3-phase, 115A max, 3000 Hz switching frequency, 0.0011 H inductance, IP00, flat connectors. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.22m","Width":"0.41m","Height":"0.38m","Maximum":"115A","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","Inductivity rated value":"0.0011H","Power loss [W] of the coil":"573W","Ambient temperature rated value":"40°C","Power loss [W] of the iron core":"328W","Thermal class acc. to IEC 60085":"H","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=338072&mlfb=4EU3951-0AV00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU3951-0AV00-0A/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU3951-0AV00-0A","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/4EU3951-0AV00-0A 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}}