{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP4000-1DS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP4000-1DS00","canonicalUrl":"https://aoctrl.com/siemens/4EP4000-1DS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP4000-1DS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP4000-1DS00 commutating choke for converter, 3-phase, 400V AC, 72A rated current, 0.35 mH, IP00, flat-type terminals.","salesMarkdown":"The Siemens 4EP4000-1DS00 is a commutating choke (line reactor) for converter applications, designed to smooth current ripple and limit di/dt on the DC link or input side of a variable-frequency drive or rectifier. It is a 3-phase, 400V AC rated choke with a rated current of 72A and a maximum current of 80A. The inductance is 0.35 mH, with a relative inductive voltage drop of 4% at rated conditions. This means it introduces a predictable impedance to limit harmonic currents and protect the converter's semiconductor devices from excessive switching stress. Rated at 72A (80A max) on a 400V AC 3-phase system, this choke is sized for a drive or converter with a nominal output current in that range — typically a 37–45 kW motor at 400V. The 0.35 mH inductance and 4% voltage drop are chosen to keep the DC-link ripple within acceptable limits without excessive voltage drop under load. The 98A DC rated value indicates the choke can handle the DC-side current if used in a DC-link configuration, matching the peak current from a 3-phase bridge rectifier feeding a 72A AC input. ## Thermal and environmental limits Rated for 40°C ambient temperature with thermal class B insulation (130°C hot-spot) per IEC 60085. Total power loss splits into 71W in the coil and 33W in the iron core, so the choke dissipates about 104W at full load. The flat-type terminals accept busbar or cable lugs, typical for power connections in a drive cabinet. Footprint is 0.219 m wide by 0.179 m tall, with a depth of 0.143 m. This is a panel-mount component — not DIN-rail — so it requires a mounting plate and clearance for the flat-type terminals and air flow. The 104W heat dissipation means spacing from other heat-sensitive components is necessary; forced ventilation is recommended if the panel ambient exceeds 40°C.","metaTitle":"Siemens 4EP4000-1DS00 Commutating Choke, 72A, 0.35 mH, 400V","metaDescription":"Siemens 4EP4000-1DS00 commutating choke for converter, 3-phase, 72A rated, 0.35 mH, 400V AC, IP00. Sourced to order against RFQ. Mature lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.143m","Width":"0.219m","Height":"0.179m","Maximum":"80A","Rated Value":"72A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","at DC rated value":"98A","Product designation":"Kommut.-Drossel f. Stromrichter","Protection class IP":"IP00","Inductivity rated value":"0.00035H","Power loss [W] of the coil":"71W","Operating voltage rated value":"400V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50Hz","Power loss [W] of the iron core":"33W","Thermal class acc. to IEC 60085":"B","Type of electrical connection for main current circuit":"flat connector","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=299245&mlfb=4EP4000-1DS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP4000-1DS00/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP4000-1DS00","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/4EP4000-1DS00 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}}