{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3805-6MS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3805-6MS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3805-6MS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3805-6MS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3805-6MS00, 3-phase filter reactor, 5 kVAR, 400 V, 50 Hz, 14% p, IP00, free conductor ends, EN 61558-2-20.","salesMarkdown":"The Siemens 4EP3805-6MS00 is a 3-phase filter reactor rated at 5 kVAR at 400 V, 50 Hz. It's built to EN 61558-2-20, the standard for reactors and filter reactors, so it's a known quantity for panel builders and MRO planners dealing with harmonic mitigation or line conditioning. At 134 Hz resonant frequency, it's tuned for the 5th harmonic family (250 Hz on a 50 Hz fundamental), which is where most 6-pulse drive harmonics sit. ## Integration notes IP00 means no enclosure — it's a bare reactor for mounting inside a panel or cabinet. Terminals are free conductor ends, so you'll need your own lugs or ferrules for the connection. The 40 /B thermal class (40 °C ambient, B rise) is standard for this duty; derate if your cabinet runs hotter. Ripple voltage percentages (106 /0 /6 /5) describe the harmonic spectrum it's designed to handle — the 106% figure is the fundamental, and the 6% and 5% are the dominant harmonic orders. That's the spec sheet detail that tells a commissioning engineer whether this reactor will saturate on a given drive's PWM output.","metaTitle":"Siemens 4EP3805-6MS00 Filter Reactor, 5 kVAR, 400 V, 50 Hz","metaDescription":"Siemens 4EP3805-6MS00 3-phase filter reactor, 5 kVAR at 400 V 50 Hz, 14% p, IP00, free conductor ends. Mature lifecycle. Sourced to order.","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=256253&mlfb=4EP3805-6MS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3805-6MS00/alternatives.json"},"ai":{"faq":[{"question":"What is the 14% p rating on this reactor?","answer":"The 14% p is the percent impedance — the voltage drop across the reactor at rated current. It determines the harmonic attenuation and the voltage regulation in the circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3805-6MS00","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/4EP3805-6MS00 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}}