{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FRN125F1S-4DY","brand":"Fuji Electric","brandSlug":"fuji-electric","productSlug":"FRN125F1S-4DY","canonicalUrl":"https://aoctrl.com/fuji-electric/FRN125F1S-4DY","factsUrl":"https://aoctrl.com/api/mcp/products/FRN125F1S-4DY","rawCanonicalId":null},"summary":{"shortDescription":"Fuji Electric FRENIC-ECO Pump (F1-DY) series, order code FRN125F1S-4DY, 125 HP, 460V 3-phase drive.","salesMarkdown":"The Fuji FRN125F1S-4DY is a FRENIC-ECO Pump (F1-DY) drive rated for 125 HP on 460V three-phase input. This is a pump-specific variant in the FRENIC-ECO family, meaning the control firmware is tuned for centrifugal pump and fan loads — think variable-torque curves, built-in PID for pressure or flow regulation, and sleep/wake functions for system efficiency. It is not a general-purpose drive; if your BOM calls for pump-duty logic, this is the correct variant. At 125 HP and 460V, this drive sits in the mid-to-large range of the FRENIC-ECO line. The F1-DY suffix flags the pump-optimized firmware package, which includes features like multi-pump cascade control and fire-mode override. For a water/wastewater or HVAC pumping station, that means one less PLC program to write. Mounting is panel-mount, sized for a 125 HP frame. The 460V three-phase input means it connects directly to a 480V distribution bus without a step-down transformer. Output to the motor is three-phase variable voltage/frequency up to the rated 125 HP. Plan for input fusing or a branch-circuit protective device sized per NEC Article 430 for a 125 HP motor at 460V — typically around 200–250 A class J fuses or an inverse-time breaker.","metaTitle":"Fuji FRN125F1S-4DY FRENIC-ECO Pump Drive, 125 HP 460V 3-Phas","metaDescription":"Fuji FRN125F1S-4DY FRENIC-ECO Pump (F1-DY) drive, 125 HP, 460V 3-phase. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drive (VFD) 480V"],"specifications":{"title":"FRN125F1S-4DY","description":"FUJ FRN125F1S-4DY CORE DRIVE|FUJ FRN125F1S-4DY CORE DRIVE FRENIC-ECO PUMP (F1-DY) 3PH 460V 125HP","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/97e7cd5c03d9670c07274327850cb4a1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the FRN125F1S-4DY rated for?","answer":"It is rated for 125 HP on 460V three-phase input, in the FRENIC-ECO Pump (F1-DY) series with pump-optimized firmware."},{"question":"What type of load is the FRN125F1S-4DY designed for?","answer":"It is a pump-specific drive — the F1-DY firmware is tuned for centrifugal pumps and fans with variable-torque curves, built-in PID, and multi-pump cascade control."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/fuji-electric/FRN125F1S-4DY","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/fuji-electric/FRN125F1S-4DY when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}