{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3904-8DB00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3904-8DB00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EP3904-8DB00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3904-8DB00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3904-8DB00-0A Netzdrossel, mains choke, 3-phase, 500V AC, 50 Hz, 1.15 A max, 0.8 H, IP00, screw/tab terminals.","salesMarkdown":"The Siemens 4EP3904-8DB00-0A is a three-phase mains choke (Netzdrossel) rated for 500 V AC at 50 Hz, with a rated current of 1 A and a maximum current of 1.15 A. Its 0.8 H inductance smooths line-side harmonics and limits inrush current on drives or converters — a standard line-reactor job for a 3-phase input. Open-frame IP00 construction mounts inside a panel or enclosure. Coil loss is 42 W and iron-core loss is 4.7 W at rated load. Thermal class B per IEC 60085 means the insulation system handles a 130 °C hot-spot limit — adequate for a 50 °C ambient with natural convection, but if your cabinet runs hotter, derate or add forced air. Dimensions: 0.219 m wide, 0.179 m high, 0.123 m deep. IP00 means no built-in protection against dust or moisture; plan for panel-level sealing if the environment is dirty or humid.","metaTitle":"4EP3904-8DB00-0A Mains Choke, 1A, 500V, 0.8H, 3-Phase","metaDescription":"Siemens 4EP3904-8DB00-0A mains choke (Netzdrossel), 1A rated / 1.15A max, 500V AC, 0.8H, 3-phase, IP00. Mature lifecycle; sourced to order. Get a quote.","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":"1.15A","Rated Value":"1A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel","Protection class IP":"IP00","Inductivity rated value":"0.8H","Power loss [W] of the coil":"42W","Operating voltage rated value":"500V","Ambient temperature rated value":"50°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"4.7W","Thermal class acc. to IEC 60085":"B","Type of electrical connection for main current circuit":"screw-type terminals / tab terminals","Relative inductive drop in voltage on the measurement level current, voltage and frequency":"99.9%"}},"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=33304&mlfb=4EP3904-8DB00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3904-8DB00-0A/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 4EP3904-8DB00-0A?","answer":"Rated current 1 A, maximum 1.15 A, rated voltage 500 V AC, 50 Hz, 3-phase, inductance 0.8 H, coil power loss 42 W, iron-core loss 4.7 W, thermal class B, IP00."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3904-8DB00-0A","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/4EP3904-8DB00-0A 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}}