{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3700-7DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3700-7DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3700-7DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3700-7DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3700-7DS00 commutating choke for converter, 3-phase, 400V AC, 56.7A rated, 63A max, 0.22mH, IP00, screw terminals.","salesMarkdown":"## Commutating Choke for Converter Applications The Siemens 4EP3700-7DS00 is a 3-phase commutating choke designed for line-side or load-side use with converters (variable-frequency drives, rectifiers). It is rated for 400 V AC at 50 Hz, with a continuous rated current of 56.7 A and a maximum current of 63 A. The inductance is 0.22 mH, and the relative inductive voltage drop is 2% at the rated current and frequency — a standard value for limiting di/dt and reducing harmonic distortion in the DC link or motor circuit. The 56.7 A rated current (Ith) is the continuous thermal current at 40 °C ambient, thermal class B (130 °C insulation system per IEC 60085). This means the choke can carry 56.7 A indefinitely without exceeding the temperature rise limit — sizing it for a drive with a continuous output current at or below that figure. The 63 A maximum (Ithmax) is the short-time overload capability, typically for starting or transient conditions. The 2% voltage drop at rated current is the impedance that provides the smoothing and commutation benefit; a higher percentage would increase losses and voltage sag, a lower percentage would reduce filtering effectiveness. For a 400 V line, 2% is 8 V — negligible for most drive input stages. ## Physical Integration and Mounting The choke measures 0.178 m wide, 0.153 m high, and 0.105 m deep. The thermal class B insulation allows a 130 °C hot-spot temperature; ensure adequate ventilation or forced cooling if the ambient inside the panel exceeds 40 °C. Total power loss at rated conditions is 63 W — 50 W in the coil (copper losses) and 13 W in the iron core (hysteresis and eddy-current losses). This heat must be dissipated within the panel. For a 56.7 A continuous load, 63 W is modest; a typical DIN-rail cabinet with natural convection can handle it, but verify that adjacent components are not thermally derated.","metaTitle":"Siemens 4EP3700-7DS00 Commutating Choke, 56.7A, 400V, 3-Phas","metaDescription":"Siemens 4EP3700-7DS00 commutating choke for converters. 56.7A rated, 400V AC, 3-phase, 0.22mH, IP00, screw terminals. Mature lifecycle; sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.105m","Width":"0.178m","Height":"0.153m","Maximum":"63A","Rated Value":"56.7A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"77.2A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00022H","Power loss [W] of the coil":"50W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"13W","Thermal class acc. to IEC 60085":"B","Type of electrical connection for main current circuit":"screw-type terminals","Relative inductive drop in voltage on the measurement level current, voltage and frequency":"2%"}},"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=149246&mlfb=4EP3700-7DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3700-7DS00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 4EP3700-7DS00 and how is it quoted?","answer":"The 4EP3700-7DS00 is sourced through independent distribution channels and is quoted to order against an RFQ. Availability and current pricing are confirmed at the time of quotation."},{"question":"What are the key specifications of the 4EP3700-7DS00?","answer":"It is a 3-phase commutating choke rated 400 V AC, 50 Hz, 56.7 A continuous (63 A max), with 0.22 mH inductance and a 2% voltage drop. Power loss is 63 W total, thermal class B, IP00, screw terminals."},{"question":"What is the physical size of the 4EP3700-7DS00?","answer":"Width 0.178 m, height 0.153 m, depth 0.105 m."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3700-7DS00","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/4EP3700-7DS00 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}}