{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3700-0DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3700-0DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3700-0DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3700-0DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3700-0DS00, 3-phase commutating choke for converter, 31.5A max / 28.35A rated, 0.89mH, 400V AC, 50Hz, IP00, screw terminals.","salesMarkdown":"The Siemens 4EP3700-0DS00 is a three-phase commutating choke (line reactor) designed for use with power converters and drives. It smooths the DC link current and limits current rise rates, protecting the converter's semiconductors and reducing harmonic distortion. Rated for 28.35 A continuous current with a maximum of 31.5 A, the choke provides 0.00089 H inductance per phase at 400 V AC, 50 Hz. The relative inductive voltage drop is 4%. The DC-rated current is 38.6 A, which is relevant if the choke is used in the DC link rather than the AC input — a configuration sometimes seen in regenerative or common-bus drive systems. ## Thermal and environmental ratings Total power loss is 64.8 W (53 W in the coil, 11.8 W in the iron core) at the rated operating point of 40 °C ambient. The thermal class is B per IEC 60085, meaning the winding insulation is rated for a 130 °C hot-spot temperature — adequate for standard industrial enclosure conditions without forced cooling. The screw-type terminals accept standard power wiring. The choke measures 0.178 m wide, 0.153 m high, and 0.105 m deep. These are the external dimensions of the core and coil assembly; allow additional clearance for the screw terminals and for air circulation around the unit.","metaTitle":"Siemens 4EP3700-0DS00 Commutating Choke, 31.5A, 0.89mH, IP00","metaDescription":"Siemens 4EP3700-0DS00 3-phase commutating choke for converters. Rated 28.35A (31.5A max), 0.89mH, 400V AC, 50Hz. IP00, screw terminals. Mature lifecycle. Sourced to order against R","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":"31.5A","Rated Value":"28.35A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"38.6A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00089H","Power loss [W] of the coil":"53W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"11.8W","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":"4%"}},"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=430039&mlfb=4EP3700-0DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3700-0DS00/alternatives.json"},"ai":{"faq":[{"question":"Will 4EP3700-0DS00 drop into a panel specified around 5SJ3140-7?","answer":"No — the 5SJ3140-7 is a single-pole miniature circuit breaker (MCB) with entirely different form factor, function, and wiring. The 4EP3700-0DS00 is a three-phase power choke with screw terminals and IP00 protection; it requires a separate mounting location and different panel layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3700-0DS00","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/4EP3700-0DS00 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}}