{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS550-U1-023A-4","brand":"ABB","brandSlug":"abb","productSlug":"ACS550-U1-023A-4","canonicalUrl":"https://aoctrl.com/abb/ACS550-U1-023A-4","factsUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-023A-4","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS550 series ACS550-U1-023A-4 AC drive, 3-phase 380-480 VAC 50/60 Hz, 23 A output, 11 kW, UL Type/NEMA 1 enclosure, US installation and NEMA compliance.","salesMarkdown":"The ACS550-U1-023A-4: The 11 kW / 23 A figure on the nameplate is the figure that actually sizes the feeder breaker, the line reactor, and the output cable — not the family headline. Specifying this drive commits the panel to a 380-480 V supply class, so verify the bus on the line side matches before dropping it into a retrofit slot. ## Where the class fits in a process line Drives in this current and voltage bracket are the workhorse units behind pump, fan, and conveyor motors in water/wastewater, HVAC, and general industrial process skids. The 50/60 Hz input window means the same cabinet design travels between 50 Hz IEC sites and 60 Hz NEMA sites without re-engineering the line filter. ## Handling and panel fit The unit comes in at 9.07 kg — a two-person lift onto a backpan is comfortable, and the NEMA 1 chassis does not need a separate cooling fan slot in the cabinet door. Plan the gland plate cutout for the power cable entry below the drive so the line and motor leads land on the right terminal block without cross-overs. ## Sourcing posture Build the line item with that string exactly; ABB option suffixes (B055, L512, etc., as seen on the 072A-4+B055+L512 sibling) change the chassis and fieldbus fit, so do not collapse variant suffixes when you submit the buy.","metaTitle":"ABB ACS550-U1-023A-4 AC Drive, 23 A 11 kW 380-480V","metaDescription":"ABB ACS550-U1-023A-4 AC drive, 3-phase 380-480 VAC 50/60 Hz, 23 A, 11 kW, UL Type/NEMA 1 enclosure, sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drive (VFD) 480V"],"specifications":{"Part #":"ACS550-U1-023A-4","Weight":"9.07 kgs","Category":"Drives","Option 1":"UL Type/NEMA 1","Option 2":"UL Type/NEMA 1","Construction":"US Installation and NEMA 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, 23 A, 11 KW"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8,041.60","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-023A-4/alternatives.json"},"ai":{"faq":[{"question":"What enclosure does the ACS550-U1-023A-4 ship in?","answer":"The ACS550-U1-023A-4 ships in a UL Type/NEMA 1 enclosure built to US installation and NEMA compliance standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS550-U1-023A-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-U1-023A-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}}