{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS550-U1-012A-4+B055","brand":"ABB","brandSlug":"abb","productSlug":"ACS550-U1-012A-4~3B055","canonicalUrl":"https://aoctrl.com/abb/ACS550-U1-012A-4~3B055","factsUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-012A-4%2BB055","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS550 series AC drive, wall-mount industrial VFD class, order code ACS550-U1-012A-4+B055, listed at 7.26 kgs, Motor Drives line.","salesMarkdown":"## The ABB ACS550-U1-012A-4+B055 on the BOM line The ABB ACS550-U1-012A-4+B055 is an AC drive from the ACS550 family, listed in the Motor Drives line at a shipping weight of 7.26 kgs. The +B055 suffix in the order string denotes the factory option bundle applied at build; it sits inside the standard ACS550-U1 frame designation rather than identifying a separate product family. ## Where this class of drive is used AC drives in this class are specified for variable-speed control of AC induction motors — fans, pumps, conveyors, mixers — where soft-start, ramp profiles, and adjustable acceleration replace across-the-line contactor control. At 7.26 kgs, this wall-mount drive lands inside a VFD cabinet section with clearance for input fusing and motor-cable glanding the panel builder expects. ## Sourcing posture for the ACS550-U1-012A-4+B055 For panels already designed around the legacy ACS550 generation, keeping the ACS550-U1-012A-4+B055 on the BOM preserves the original wiring, parameter set, and spare-parts commonality; an ACH580 swap belongs on a re-engineered panel, not as a field-service alternate.","metaTitle":"ABB ACS550-U1-012A-4+B055 AC Drive, 7.26 kg","metaDescription":"ABB ACS550-U1-012A-4+B055 AC drive, 7.26 kgs, Motor Drives line. Specified to order against an RFQ; peer ACH580-01-014A-4 is the typical migration frame.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drives (VFD)"],"specifications":{"Part #":"ACS550-U1-012A-4+B055","Weight":"7.26 kgs","Category":"Drives","Sub Category":"Motor Drives","Top Category":"Motors & Motor Controls","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7,713.65","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-012A-4%2BB055/alternatives.json"},"ai":{"faq":[{"question":"What does the +B055 suffix mean in the order code ACS550-U1-012A-4+B055?","answer":"The +B055 suffix denotes an ABB factory option bundle applied to the base ACS550-U1-012A-4 drive at build; it does not change the frame family but does change the as-shipped configuration, so the PO string has to be quoted verbatim to receive the matching build."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS550-U1-012A-4~3B055","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-U1-012A-4~3B055 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}}