{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3700-6US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3700-6US00","canonicalUrl":"https://aoctrl.com/siemens/4EP3700-6US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3700-6US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 4EP3700-6US00 mains choke for frequency converters, 3-phase, 500 V AC, 31.5 A max, 0.58 mH, 50 Hz, IP00, screw terminals.","salesMarkdown":"The Siemens 4EP3700-6US00 is a three-phase mains choke (line reactor) designed for installation ahead of a frequency converter (Netzdrossel f. FU). Its job is to smooth the input current, reduce harmonics, and limit inrush spikes that would otherwise stress the drive's rectifier stage and upstream protection. Rated at 500 V AC, 50 Hz, with a maximum continuous current of 31.5 A and a rated inductance of 0.00058 H, it introduces a 2% relative inductive voltage drop at rated conditions. The thermal class is B (130 °C rise) per IEC 60085, with a rated ambient of 40 °C. Total power loss splits between the coil (48.8 W) and iron core (11.2 W) — about 60 W total heat to vent inside the enclosure. That's not trivial; factor it into your panel cooling calc. IP00 means no enclosure — this choke is a bare magnetic assembly intended for mounting inside a cabinet. Mount it close to the drive's line input, not at the distribution board, to keep the lead length between choke and drive short. Long pigtails between the choke and the drive input defeat the filtering effect by adding stray inductance and capacitance that can resonate with the drive's switching edges.","metaTitle":"Siemens 4EP3700-6US00 Mains Choke, 31.5 A, 0.58 mH, 500 V","metaDescription":"Siemens 4EP3700-6US00 mains choke for frequency converters. 3-phase, 500 V AC, 31.5 A max, 0.58 mH, 50 Hz. UL/CSA recognized. Active production. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.105m","Width":"0.178m","Height":"0.153m","Phase Number":"3","Type Of Voltage":"AC","lifecycle_stage":"mature","Product Designation":"Netzdrossel f. FU","protection class IP":"IP00","current at AC maximum":"31.5A","Inductivity Rated Value":"0.00058H","power loss [W] of the coil":"48.8W","Operating Voltage Rated Value":"500V","Ambient Temperature Rated Value":"40°C","Operating Frequency Rated Value":"50Hz","power loss [W] of the iron core":"11.2W","thermal class acc. to IEC 60085":"B","operational current at AC rated value":"28.35A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Relative Inductive Drop In Voltage For Rated Value Of The Current, Voltage And Frequency":"2%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce02973a002d285edc0fdb917fad6ebd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=417734&mlfb=4EP3700-6US00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3700-6US00/alternatives.json"},"ai":{"faq":[{"question":"Will 4EP3700-6US00 drop into a panel specified around 5SJ3140-7?","answer":"No — 5SJ3140-7 is a 1-pole 40 A miniature circuit breaker (MCB) with a completely different form factor and function. The 4EP3700-6US00 is a 3-phase mains choke; it occupies a different footprint and serves a different role in the power path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3700-6US00","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/4EP3700-6US00 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}}