{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS550-U1-023A-4+B055+L512","brand":"ABB","brandSlug":"abb","productSlug":"ACS550-U1-023A-4~3B055~3L512","canonicalUrl":"https://aoctrl.com/abb/ACS550-U1-023A-4~3B055~3L512","factsUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-023A-4%2BB055%2BL512","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS550-U1-023A-4+B055+L512, ACS550-series motor drive in the 10.43 kg frame, specified for panel-mount VFD duty and sourced to order against an RFQ.","salesMarkdown":"## What this code is The ABB ACS550-U1-023A-4+B055+L512 is an ACS550-series motor drive in the Drives / Motor Drives category, with the +B055 and +L512 suffixes marking ordered option codes. ## Where the class is used ACS550-series drives are general-purpose industrial VFDs typically applied to fans, pumps, conveyors and mixers where the load profile is variable-torque or squared-torque rather than constant-torque, which is the application class the -023A current frame is sized for in this family. The +B055 and +L512 suffixes are option codes the buyer would normally see in the build sheet — they are part of the ordered configuration, not a field retrofit, which matters when a line goes down and a replacement has to match what was originally specified. ## Sourcing posture Quoting to order keeps the option suffixes intact, which is the part of the order code that tends to get mismatched when a buyer accepts a generic replacement and then finds the keypad language, I/O map or fieldbus behavior does not line up with the original commissioning file.","metaTitle":"ABB ACS550-U1-023A-4+B055+L512 drive, 10.43 kg","metaDescription":"ABB ACS550-U1-023A-4+B055+L512 ACS550-series motor drive, 10.43 kg chassis. 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-U1-023A-4+B055+L512","Weight":"10.43 kgs","Category":"Drives","Sub Category":"Motor Drives","Top Category":"Motors & Motor Controls","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3,826.01","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-023A-4%2BB055%2BL512/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the ACS550-U1-023A-4+B055+L512 — is it the ACS550-U1-096A-4?","answer":"The ACS550-U1-096A-4 is a higher-current frame in the same family at 19.96 kg; it is a same-family reference, not a same-frame alternate, and a higher current frame is a different product rather than a drop-in swap. Specify the original code into the BOM."},{"question":"Will the ACS550-U1-023A-4+B055+L512 drop into a panel specified around the ACS550-U1-096A-4 without rewiring?","answer":"No — the -096A-4 is a higher-current frame, so wiring, breaker and bus bar sizing on that panel are sized for a different nameplate current. Treat it as a different product, not a same-frame alternate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS550-U1-023A-4~3B055~3L512","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-U1-023A-4~3B055~3L512 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}}