{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4EU4351-0AF00-0B","brand":"Siemens","brandSlug":"siemens","productSlug":"4EU4351-0AF00-0B","canonicalUrl":"https://aoctrl.com/siemens/4EU4351-0AF00-0B","factsUrl":"https://aoctrl.com/api/mcp/products/4EU4351-0AF00-0B","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIDAC output reactor, 4EU4351-0AF00-0B, 500 A, 60 Hz, 690 V, 0.18 mH, IP00, Class H, flat connector.","salesMarkdown":"The Siemens SIDAC 4EU4351-0AF00-0B is a three-phase output reactor (mains choke) rated for 500 A continuous at 60 Hz line frequency, with a rated voltage of 690 V AC and an inductance of 0.18 mH. It sits between the drive output and the motor cable to limit dv/dt and reduce capacitive charging currents on long cable runs — a standard fit for variable-frequency drive installations feeding motors over 50 m of shielded cable. That's the RMS current the choke can carry without saturating the core or exceeding the thermal limits. The 0.18 mH inductance is relatively low — sized for larger drives where a few microhenries per amp are enough to limit switching-edge ringing. The 690 V rated voltage covers 400 V and 480 V drives with margin; it also handles 600 V class systems common in North American 60 Hz installations. Total power loss sums to 1403 W (952 W coil copper loss plus 451 W iron core loss) at rated load and 45 °C ambient. That's the heat you need to extract from the enclosure — a significant thermal load that drives ventilation or derating in sealed cabinets. Class H insulation (180 °C rated) gives headroom above the 45 °C ambient, but the losses still dictate panel cooling. ## Physical integration and termination The reactor measures 0.46 m wide × 0.43 m tall × 0.26 m deep — a substantial block that needs floor or back-panel mounting, not DIN rail. Protection class IP00 means it's an open-frame component intended for inside a ventilated electrical enclosure; no washdown or dust protection. Main circuit connection is via flat connectors (bus-bar style), so plan for bolted terminations rather than ring lugs on screw terminals.","metaTitle":"Siemens SIDAC 4EU4351-0AF00-0B Output Reactor, 500 A, 60 Hz","metaDescription":"Siemens SIDAC 4EU4351-0AF00-0B output reactor / mains choke. Rated 500 A at 60 Hz, 690 V, 0.18 mH, Class H insulation. Mature lifecycle; quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Line/Load Reactors"],"specifications":{"Depth":"0.26m","Width":"0.46m","Height":"0.43m","Maximum":"500A","Minimum":"60Hz","Rated Value":"4 600Hz","Phase number":"3","Type of voltage":"AC","lifecycle_stage":"mature","Product brand name":"SIDAC","Product designation":"output reactor","Protection class IP":"IP00","Inductivity rated value":"0.00018H","Power loss [W] of the coil":"952W","Ambient temperature rated value":"45°C","Power loss [W] of the iron core":"451W","Thermal class acc. to IEC 60085":"H","Type of electrical connection for main current circuit":"flat connector"}},"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=269372&mlfb=4EU4351-0AF00-0B","alternativesUrl":"https://aoctrl.com/api/mcp/products/4EU4351-0AF00-0B/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 4EU4351-0AF00-0B and how is it quoted?","answer":"This part is sourced through independent industrial-automation distribution channels and quoted to order against an RFQ. Volume pricing and lead time are confirmed at quote time — no stock count or price is published here."},{"question":"What compliance documentation does Siemens provide for 4EU4351-0AF00-0B?","answer":"The evidence does not list RoHS, REACH, UL, or IEC certificates for this specific order code. The reactor is designed to VDE 0532 (per the description field), and the thermal class follows IEC 60085 Class H. For project-specific compliance documentation, request it with the RFQ."},{"question":"Will 4EU4351-0AF00-0B drop into a panel specified around 5SY6010-6KL?","answer":"No — the 5SY6010-6KL is a SENTRON miniature circuit breaker (18 mm wide, DIN-rail mount, IP20). The 4EU4351-0AF00-0B is a 46 cm wide output reactor with flat connectors and IP00 protection. They serve completely different functions and panel positions. The reactor replaces nothing in the breaker panel; it is an additional component on the drive output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/4EU4351-0AF00-0B","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/4EU4351-0AF00-0B 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}}