{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EP3400-0HS00","brand":"Siemens","brandSlug":"siemens","productSlug":"4EP3400-0HS00","canonicalUrl":"https://aoctrl.com/siemens/4EP3400-0HS00","factsUrl":"https://aoctrl.com/api/mcp/products/4EP3400-0HS00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EP3400-0HS00, commutating reactor for converter, 3-phase, rated 8.1 A (max 9 A), 1.4 mH, IP00, free cable endings.","salesMarkdown":"The Siemens 4EP3400-0HS00 is a 3-phase commutating reactor for converter duty, rated 8.1 A continuous with a 9 A maximum, 1.4 mH inductance. It's an open-frame (IP00) component with free cable endings for main circuit connection — designed to sit inside a cabinet, not on the panel surface. The 8.1 A rated current at 40 °C ambient (thermal class F per IEC 60085) sets the continuous load limit in a converter DC link or AC line application. The 1.4 mH inductance defines the rate of current change (di/dt) it can smooth — critical for limiting commutation notches and reducing harmonic stress on the converter's semiconductors. Total power loss splits into 32.6 W in the coil and 4.5 W in the iron core, summing to 37.1 W; that heat must be managed inside the enclosure. IP00 means no ingress protection — the reactor has no housing, so it requires cabinet-level protection (IP54 or better on the enclosure) and clearance from live parts per IEC 61558-2-20. The free cable endings (no terminal block) mean you'll land the conductors directly with ring or fork terminals; plan for strain relief and a cable entry gland plate. ## Panel footprint and mounting Footprint is 124 mm wide × 122 mm tall × 73 mm deep. This is a chassis-mount component — no DIN rail clip. Allow clearance around the core for airflow; the 37.1 W total loss at full load needs free convection or forced air depending on your cabinet's thermal budget. The free cable endings accept conductors sized for 9 A; strip and terminate per your panel's wiring practice.","metaTitle":"Siemens 4EP3400-0HS00 Commutating Reactor, 8.1 A, 1.4 mH, 3-","metaDescription":"Siemens 4EP3400-0HS00 commutating reactor for converter duty. Rated 8.1 A (max 9 A), 1.4 mH, 3-phase, IP00 open-frame. Mature lifecycle; sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.073m","Width":"0.124m","Height":"0.122m","Maximum":"9A","Rated Value":"8.1A","Phase number":"3","Power loss [W]":"37.1W","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"commut. reactor for converter","Protection class IP":"IP00","Inductivity rated value":"0.0014H","Power loss [W] of the coil":"32.6W","Ambient temperature rated value":"40°C","Power loss [W] of the iron core":"4.5W","Thermal class acc. to IEC 60085":"F","Type of electrical connection for main current circuit":"free cable endings"}},"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=135678&mlfb=4EP3400-0HS00","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EP3400-0HS00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 4EP3400-0HS00 and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the footprint of 4EP3400-0HS00?","answer":"124 mm wide × 122 mm tall × 73 mm deep. Chassis-mount, no DIN rail clip. Plan for free-air clearance around the core for heat dissipation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EP3400-0HS00","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/4EP3400-0HS00 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}}