{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3900-7MS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3900-7MS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3900-7MS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3900-7MS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC 4EP3900-7MS00, 3-phase filter reactor, 8.6A rated current, 400V AC, 50Hz, 14% relative throttling factor, IP00, screw-type terminals.","salesMarkdown":"The Siemens SIDAC 4EP3900-7MS00 is a 3-phase filter reactor — a line choke — rated for 8.6 A continuous at 400 V AC, 50 Hz. Its 0.013 H inductance and 14% relative throttling factor smooth current harmonics and limit inrush on drives and converters. The 6 200 var reactive power rating tells you the bank it can support; the 72 W power loss is what you dissipate as heat inside the enclosure. This is a panel-mount component with IP00 protection — no enclosure of its own, so it goes inside a cabinet. Dimensions are 0.219 m wide by 0.179 m tall by 0.123 m deep. That footprint fits on a standard backplate or mounting rail; leave clearance around it for the 72 W heat dissipation and for the screw-terminal access. The thermal class B winding (130 °C rise) means it runs warm but stays within standard insulation limits at a 40 °C ambient. The resonant frequency is 134 Hz — well above the 50 Hz line fundamental, so it won't resonate with the grid. The 9.54 A maximum rating provides headroom above the 8.6 A continuous; don't size it for sustained overload beyond that.","metaTitle":"Siemens SIDAC 4EP3900-7MS00 Filter Reactor, 8.6A, 400V, 3-Ph","metaDescription":"Siemens SIDAC 4EP3900-7MS00 3-phase filter reactor. Rated 8.6A at 400V AC, 50Hz, 14% throttling. IP00, screw terminals. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.123m","Width":"0.219m","Height":"0.179m","Maximum":"9.54A","Rated Value":"8.6A","Phase number":"3","Power loss [W]":"72W","Type of voltage":"AC","lifecycle_stage":"mature","Product brand name":"SIDAC","Product designation":"filter reactor","Protection class IP":"IP00","Inductivity rated value":"0.013H","Relative throttling factor":"14%","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Thermal class acc. to IEC 60085":"B","Resonant frequency of the filter":"134Hz","Reactive power of the filter bank rated value":"6 200var","Type of electrical connection for main current circuit":"screw-type terminals"}},"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=464872&mlfb=4EP3900-7MS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3900-7MS00/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 4EP3900-7MS00?","answer":"Rated 8.6 A at 400 V AC, 50 Hz, 3-phase. Inductance 0.013 H, 14% throttling factor, 6 200 var reactive power, 72 W power loss. Thermal class B, IP00, screw terminals."},{"question":"What is the physical size of 4EP3900-7MS00?","answer":"0.219 m wide, 0.179 m tall, 0.123 m deep. Panel-mount, IP00."},{"question":"Will 4EP3900-7MS00 drop into a panel designed for a 5SJ3140-7?","answer":"No. The 5SJ3140-7 is a 1-pole 40 A miniature circuit breaker with a 70 mm depth and IP20 — a completely different form factor and function. This filter reactor is larger and serves a different role in the circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3900-7MS00","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/4EP3900-7MS00 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}}