{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3700-4DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3700-4DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3700-4DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3700-4DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3700-4DS00, commutating choke for converter, 3-phase, 400V AC, 45A AC max, 0.31 mH, 50 Hz, IP00, screw terminals.","salesMarkdown":"It limits current rise and harmonics on the AC side of a variable-frequency drive or DC drive converter, protecting the rectifier diodes and smoothing the DC bus. Rated 45 A AC maximum, 0.31 mH inductance, and 400 V AC at 50 Hz. The 45 A AC maximum current and 40.5 A AC rated operational current define the continuous load this choke can carry without saturating the core. For a 400 V, 50 Hz converter input, the 2% relative inductive voltage drop means the choke will drop about 8 V at rated current — negligible for most drive applications but worth confirming the drive's undervoltage tolerance. The 0.31 mH inductance sets the dv/dt and harmonic attenuation; per the datasheet, this value is measured at rated current, frequency, and voltage. Thermal class B insulation per IEC 60085 means the winding can sustain 130 °C hot-spot temperature. The 49 W copper loss plus 12 W iron loss sum to 61 W total dissipation at rated load — this heat must be ventilated from the enclosure. The 40 °C ambient rating is the reference; derate above that per the thermal curve in the full datasheet. IP00 protection means the choke has no enclosure — it is an open-frame component intended for mounting inside a panel or drive cabinet. Screw-type terminals accept ring or fork lugs; the 0.105 m depth, 0.178 m width, and 0.153 m height define the mounting footprint. Allow clearance for airflow and terminal access. This choke mounts on the AC input of a 3-phase converter drive — typically between the mains supply and the drive's rectifier section. It reduces harmonic distortion, limits inrush current, and protects the drive's input diodes from commutation notches. Common in motor control panels for pumps, fans, conveyors, and compressors where the drive is fed from a stiff supply or where multiple drives share a common bus.","metaTitle":"Siemens 4EP3700-4DS00 Commutating Choke, 45A AC, 0.31 mH, 40","metaDescription":"Siemens 4EP3700-4DS00 commutating choke for converter drives. Rated 45A AC, 0.31 mH, 400V, 50 Hz. Active production. Sourced to order. Request quote.","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":"Kommut.-Drossel f. Stromrichter","protection class IP":"IP00","current at AC maximum":"45A","Inductivity Rated Value":"0.00031H","current at DC rated value":"55.1A","power loss [W] of the coil":"49W","Operating Voltage Rated Value":"400V","Ambient Temperature Rated Value":"40°C","Operating Frequency Rated Value":"50Hz","power loss [W] of the iron core":"12W","thermal class acc. to IEC 60085":"B","operational current at AC rated value":"40.5A","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/04fb1773f9248ccbc666a7ffc0709885.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=360332&mlfb=4EP3700-4DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3700-4DS00/alternatives.json"},"ai":{"faq":[{"question":"What are the key specifications of 4EP3700-4DS00?","answer":"3-phase commutating choke, 400 V AC, 45 A AC max, 40.5 A AC rated, 0.31 mH inductance, 2% voltage drop, 50 Hz, IP00, screw terminals, thermal class B, 40 °C ambient."},{"question":"How do I get pricing and availability for 4EP3700-4DS00?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is the mounting footprint of 4EP3700-4DS00?","answer":"The dimensions are 0.105 m depth, 0.178 m width, and 0.153 m height. It is an open-frame IP00 component with screw terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3700-4DS00","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/4EP3700-4DS00 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}}