{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS550-U1-044A-4","brand":"ABB","brandSlug":"abb","productSlug":"ACS550-U1-044A-4","canonicalUrl":"https://aoctrl.com/abb/ACS550-U1-044A-4","factsUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-044A-4","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS550-U1-044A-4 AC drive, ACS550-U1 series, 21.32 kgs, motor drives class.","salesMarkdown":"## What shows up on the BOM line The ABB ACS550-U1-044A-4 is an AC drive in the ACS550-U1 family, sitting in the motor drives class alongside the rest of the U1 frame. The order code ACS550-U1-044A-4 is what gets typed into the BOM, and the chassis lands on the dock at 21.32 kgs. Catalog placement is Motors & Motor Controls › Drives › Motor Drives, which matches where panel builders and mill electricians expect to find a general-purpose industrial drive of this size. ## Sparing against a same-frame sibling Optioned same-frame units ACS550-U1-072A-4+B055+L512 at 34.02 kgs and ACS550-U1-059A-4+B055 at 36.29 kgs run heavier than the 21.32 kgs base; when +B055 or +L512 are on the BOM, match the optioned MPN on the PO, not the bare 044A-4.","metaTitle":"ABB ACS550-U1-044A-4 AC Drive, 21.32 kg","metaDescription":"ABB ACS550-U1-044A-4 AC drive from the ACS550-U1 family, chassis weight 21.32 kgs. Specified into the BOM and quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drives (VFD)"],"specifications":{"Part #":"ACS550-U1-044A-4","Weight":"21.32 kgs","Category":"Drives","Sub Category":"Motor Drives","Top Category":"Motors & Motor Controls","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5,785.23","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-044A-4/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS550-U1-044A-4","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/ACS550-U1-044A-4 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}}