{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS550-01-031A-4+B055","brand":"ABB","brandSlug":"abb","productSlug":"ACS550-01-031A-4~3B055","canonicalUrl":"https://aoctrl.com/abb/ACS550-01-031A-4~3B055","factsUrl":"https://aoctrl.com/api/mcp/products/ACS550-01-031A-4%2BB055","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS550-01-031A-4+B055 AC drive, three-phase 380-480 VAC at 50/60 Hz, 31 A output rated 15 kW, with IP54/UL Type 12 enclosure option B055.","salesMarkdown":"The ABB ACS550-01-031A-4+B055 is a three-phase 380-480 VAC, 50/60 Hz AC drive with a 31 A output rating corresponding to a 15 kW motor load on the ACS550 wall-mount platform. The +B055 suffix is the enclosure option, delivered as IP54/UL Type 12, which means dust- and splash-protected wall mounting rather than a cubicle-only build — useful when the drive has to live outside a clean panel room but still meet the same IEC installation and compliance footprint. ## Sizing the fit before the panel is built At 17.00 kgs the unit is a single-person lift, and with the IP54 wall-mount enclosure it fixes the cabinet envelope: the existing bracket and gland plate must accept this IP54 build rather than an open-chassis unit of the same 31 A, 15 kW rating. Within the same ACS550 family, the ACS550-U1-096A-4 is a larger-frame sibling carrying a higher current rating and roughly 19.96 kgs of mass — it is the same platform stepped up in rating, not a same-rating alternative, so a panel that was originally specified around it cannot accept this 31 A unit without reworking the motor branch, breaker sizing, and gland layout. ## Sourcing posture for this line","metaTitle":"ABB ACS550-01-031A-4+B055 AC Drive, 31 A, 15 kW","metaDescription":"ABB ACS550-01-031A-4+B055 wall-mount AC drive, three-phase 380-480 VAC, 31 A output (15 kW), IP54/UL Type 12 enclosure option B055. Spec line for sourcing and panel fit.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drive (VFD) 480V"],"specifications":{"Part #":"ACS550-01-031A-4+B055","Weight":"17.00 kgs","Category":"Drives","Option 1":"IP54/UL Type 12","Option 2":"UL Type/NEMA 1","Construction":"IEC Installation and Compliance","Sub Category":"Motor Drives","Top Category":"Motors & Motor Controls","lifecycle_stage":"eol_hot","Output Current Rating":"Three-Phase, 380-480 VAC, 50/60 HZ, 31 A, 15 KW"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3,844.39","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS550-01-031A-4%2BB055/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to ACS550-01-031A-4+B055?","answer":"Within the ACS550 family the ACS550-U1-096A-4 is the larger-frame sibling on the same platform, but it carries a higher current rating and roughly 19.96 kgs of mass — it is the platform stepped up, not a same-rating drop-in."},{"question":"Will the ACS550-01-031A-4+B055 drop into a panel specified around the ACS550-U1-096A-4?","answer":"No — they are different current ratings on the same ACS550 platform, so the motor branch protection, cable sizing, and gland layout would all need rework; this is not a frame-for-frame swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS550-01-031A-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/ACS550-01-031A-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}}