{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU2551-5UA00-0A","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU2551-5UA00-0A","canonicalUrl":"https://aoctrl.com/siemens/4EU2551-5UA00-0A","factsUrl":"https://aoctrl.com/api/mcp/products/4EU2551-5UA00-0A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 4EU2551-5UA00-0A Netzdrossel f. FU, 3-phase mains choke, 225 A rated current, 250 A max, 480 V AC, 50/60 Hz, IP00, flat-type terminals.","salesMarkdown":"The 4EU2551-5UA00-0A: Rated 225 A continuous with a 250 A ceiling — that's the thermal limit at 40 °C ambient, Class H insulation (185 °C hot-spot). If your drive's continuous input current is under 225 A and the peak doesn't exceed 250 A, this choke will survive the route. The 2% voltage drop at rated current is the sweet spot for most general-purpose VFD applications; it's enough inductance to smooth the line notches without dropping so much voltage that the drive undervolts on a sag. IP00 means it's an open-frame component — no enclosure. It's meant to live inside a panel or drive cabinet, not out on the wet floor. The flat-type terminals (flat connectors) accept bus bar or heavy cable lugs; plan your panel wiring accordingly. The dimensions are 0.225 m wide, 0.21 m tall, and 0.176 m deep — about a 9 by 8 by 7-inch block. That's a substantial reactor; it needs dedicated panel space and structural support, not just a DIN rail clip. The flat-type terminals are sized for bolted connections; torque them to the lug manufacturer's spec. Mount it close to the drive input to minimize radiated noise from long unshielded cable runs between choke and drive.","metaTitle":"Siemens 4EU2551-5UA00-0A Mains Choke, 225A, 3-Phase, 480V","metaDescription":"Siemens 4EU2551-5UA00-0A mains choke for variable-frequency drives. 3-phase, 225A rated, 250A max, 480V AC, 50/60Hz. IP00 open-frame. Mature lifecycle; sourced to order. Request qu","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.176m","Width":"0.225m","Height":"0.21m","Maximum":"250A","Rated Value":"225A","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product designation":"Netzdrossel f. FU","Protection class IP":"IP00","Inductivity rated value":"0.000056H","Operating voltage rated value":"400, 480V","Ambient temperature rated value":"40°C","Operating frequency rated value":"50 ... 60Hz","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"flat connector","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=465860&mlfb=4EU2551-5UA00-0A","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU2551-5UA00-0A/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 4EU2551-5UA00-0A and what is the lead time?","answer":"We source the 4EU2551-5UA00-0A to order through independent distribution. Submit an RFQ and we'll confirm current availability and lead time at quote — no stock figures on the page, but we'll get you a firm answer fast."},{"question":"What are the key electrical ratings for this choke?","answer":"Three-phase, 225 A rated continuous (250 A max), 400/480 V AC, 50/60 Hz, with a 2% inductive voltage drop at rated current. Thermal class H insulation rated for 40 °C ambient."},{"question":"What is the physical size of the 4EU2551-5UA00-0A?","answer":"The choke measures 0.225 m wide, 0.21 m high, and 0.176 m deep. It's an open-frame (IP00) component with flat-type terminals for bolted connections."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU2551-5UA00-0A","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/4EU2551-5UA00-0A 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}}