{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3700-1US00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3700-1US00","canonicalUrl":"https://aoctrl.com/siemens/4EP3700-1US00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3700-1US00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3700-1US00 mains choke (line reactor) for frequency converters, 3-phase, 500 V AC, 35.5 A max current, 0.52 mH, IP00 open-frame, screw terminals, UL/CSA recognized.","salesMarkdown":"It limits harmonic distortion, reduces peak currents, and protects the drive from line-side transients. Rated for 500 V AC at 50 Hz with a maximum continuous current of 35.5 A, it presents an inductance of 0.52 mH and a relative inductive voltage drop of 2% at rated conditions. The IP00 open-frame construction means it is intended for mounting inside an enclosure — no touch protection on the part itself. Connection is via screw-type terminals, which simplifies wiring in a panel compared to busbar-style chokes. The 35.5 A maximum current (ITHMAX 1) is the thermal current rating at 40 °C ambient — the choke can carry this continuously without exceeding Class B insulation temperature limits per IEC 60085. The rated operational current is 31.95 A, which is the current at which the 2% voltage drop and 0.52 mH inductance are guaranteed. For motor drive applications, size the upstream protection such that the drive's input current does not exceed 35.5 A under worst-case load. Total power loss splits between the coil (49.6 W) and iron core (9.74 W), summing to about 59 W. This heat must be considered in the enclosure thermal design — at IP00, natural convection is expected, so adequate ventilation or forced airflow around the choke is necessary. The 4EP3700-1US00 is UL and CSA recognized, designed to EN 61558-2-20 (safety of transformers, reactors, and power supply units). The product lifecycle status is active — this is a current-production part, not a discontinued or NRND item. For RoHS, REACH, and CE documentation, the manufacturer provides declarations on request. Dimensions: 0.178 m wide × 0.153 m tall × 0.105 m deep. The open-frame design means it mounts via its core or a bracket — no DIN-rail clip. Plan for screw-terminal access on the main circuit connections. The 0.105 m depth is the choke body only; allow additional clearance for cable bending radius and airflow.","metaTitle":"Siemens 4EP3700-1US00 Mains Choke, 35.5 A, 500 V, 3-Phase","metaDescription":"Siemens 4EP3700-1US00 mains choke for frequency converters. 3-phase, 500 V, 35.5 A max, 0.52 mH, IP00. UL/CSA recognized. Active production, quoted to order.","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":"35.5A","Inductivity Rated Value":"0.00052H","power loss [W] of the coil":"49.6W","Operating Voltage Rated Value":"500V","Ambient Temperature Rated Value":"40°C","Operating Frequency Rated Value":"50Hz","power loss [W] of the iron core":"9.74W","thermal class acc. to IEC 60085":"B","operational current at AC rated value":"31.95A","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/e1a8504881d604131398b9678681ad9e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=504593&mlfb=4EP3700-1US00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3700-1US00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 4EP3700-1US00?","answer":"Sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time."},{"question":"What are the key specifications of the 4EP3700-1US00?","answer":"3-phase, 500 V AC, 50 Hz, 35.5 A max thermal current, 0.52 mH inductance, 2% voltage drop at rated current, IP00, screw terminals, Class B insulation, UL/CSA recognized."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3700-1US00","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/4EP3700-1US00 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}}