{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP4005-8MS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP4005-8MS00","canonicalUrl":"https://aoctrl.com/siemens/4EP4005-8MS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP4005-8MS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP4005-8MS00, filter reactor, 3-phase, 10 kvar, 400 V, 50 Hz, IP00, free conductor ends, EN 61558-2-20 >CHOKE<.","salesMarkdown":"The Siemens 4EP4005-8MS00 is a 3-phase filter reactor rated 10 kvar at 400 V, 50 Hz, designed to attenuate harmonic currents on the line side of variable-frequency drives and other non-linear loads. It is built to EN 61558-2-20, the standard for chokes and reactors, and comes with free conductor ends for direct panel wiring — no terminal block on the reactor itself, so plan your gland plate and cable entry accordingly. The 10 kvar rating at 400 V tells you the reactive power the reactor handles at rated voltage and frequency. For a 400 V drive system at 50 Hz, this reactor will present the designed impedance to limit harmonic distortion — typically used to meet IEEE 519 or similar grid-code harmonic limits. The 14 % impedance (P(%):14) means the reactor's voltage drop at rated current is 14 % of the line voltage, which is a standard value for input line reactors in industrial drive applications. The 134 Hz resonant frequency (FRES(HZ):134) is the point where the reactor and system capacitance could resonate; stay clear of that frequency band in your system design. The ripple voltage percentages (RIPPLE VOLT. (%):106 /0 /6 /5) describe the voltage distortion across the reactor under specific test conditions — these are design verification values, not selection parameters. The 40 /B temperature class (TA/ISOKL:40 /B) indicates a 40 °C ambient rating with Class B insulation (130 °C max hot-spot), so derate if your cabinet ambient exceeds 40 °C. Terminals are free conductor ends — stripped cable tails, no lugs or terminals pre-fitted. You will need to terminate with ring or fork terminals sized for your cable and the reactor's lug aperture. The IP00 rating means the reactor core and windings are exposed; mount it inside a clean, dry enclosure with at least 100 mm clearance around the core for airflow. Do not mount directly above heat-generating components like braking resistors or drive heat sinks.","metaTitle":"Siemens 4EP4005-8MS00 Filter Reactor, 10 kvar, 400 V, 50 Hz","metaDescription":"Siemens 4EP4005-8MS00 3-phase filter reactor, 10 kvar at 400 VAC, 50 Hz. Mature lifecycle. Sourced to order. Request RFQ for availability and pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"lifecycle_stage":"mature"}},"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=342146&mlfb=4EP4005-8MS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP4005-8MS00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 4EP4005-8MS00 and get current pricing?","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 compliance documentation is available for the 4EP4005-8MS00?","answer":"The reactor is built to EN 61558-2-20, the harmonized European standard for chokes and reactors. RoHS and REACH compliance is standard for Siemens industrial products in this series; request the declaration of conformity with your RFQ."},{"question":"What does the 14 % impedance (P(%):14) mean for my drive system?","answer":"The 14 % impedance is the voltage drop across the reactor at rated current relative to line voltage. This is a typical value for input line reactors used with 6-pulse drives to reduce harmonic current distortion. It will drop about 56 V at full load on a 400 V line, so factor that into your drive input voltage budget."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP4005-8MS00","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/4EP4005-8MS00 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}}