{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS550-U1-072A-4+K466","brand":"ABB","brandSlug":"abb","productSlug":"ACS550-U1-072A-4~3K466","canonicalUrl":"https://aoctrl.com/abb/ACS550-U1-072A-4~3K466","factsUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-072A-4%2BK466","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS550 series three-phase AC drive, 380-480 VAC at 50/60 Hz, 72 A / 37 kW, UL Type/NEMA 1 enclosure with Ethernet adaptor option code +K466, US installation build, 34.02 kg.","salesMarkdown":"The ABB ACS550-U1-072A-4+K466 is a three-phase AC drive out of the ACS550-U1 wall-mount family, ordered with the +K466 option code and a UL Type/NEMA 1 enclosure sized for US installation practice. Its output is rated 72 A at 37 kW on a 380-480 VAC, 50/60 Hz supply, which is the figure that drives motor selection, the upstream feeder sizing, and the breaker/coordination study on the panel side. Listed shipping mass is 34.02 kg, so it is a two-person lift and the cabinet backplane must be rated for that loaded weight before the gland plate is cut. The +K466 option is an Ethernet adaptor, which matters for whoever is writing the fieldbus slice on the integrator side — the drive talks Ethernet natively on this build, no add-on gateway required. ## Application context ACS550-U1 drives in the 72 A bracket typically run constant- or variable-torque industrial loads — fans, pumps, conveyors, mixers — where the 380-480 V three-phase rail and 37 kW output land the motor in the mid-frame induction class. Cable length is the usual silent killer on this class of drive: long motor leads from a wall-mount NEMA 1 chassis to a remote motor produce reflected-wave overvoltage at the motor terminals, so the panel layout should keep the motor cable run short or budget for an output reactor/dV/dt filter before commissioning. With the Ethernet adaptor option on board, the controls integrator can drop the drive onto a PROFINET/Modbus TCP segment without a third-party gateway, but the cabinet still needs a clean ground reference at the drive chassis for the communications shield to do its job. ## Sourcing posture ABB ACS550 platform parts in this size bracket are typically specified into the BOM and quoted to order rather than pulled off the shelf for a line-down event, so the realistic move is to put the +K466 build on an RFQ with the 380-480 V / 72 A / 37 kW rating, the Ethernet adaptor option, and the NEMA 1 enclosure listed explicitly.","metaTitle":"ABB ACS550-U1-072A-4+K466 Drive, 72 A 37 kW 480V","metaDescription":"ABB ACS550-U1-072A-4+K466 three-phase AC drive, 380-480 VAC at 50/60 Hz, 72 A / 37 kW, UL Type/NEMA 1 with Ethernet adaptor option. Quoted 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-U1-072A-4+K466","Weight":"34.02 kgs","Category":"Drives","Option 1":"Ethernet Adaptor","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, 72 A, 37 KW"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9,669.78","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS550-U1-072A-4%2BK466/alternatives.json"},"ai":{"faq":[{"question":"Will ACS550-U1-072A-4+K466 drop into a panel specified around ACS550-U1-072A-4+B055+L512 without rewiring?","answer":"It is the same chassis on the same 72 A / 380-480 V / 37 kW frame at the same 34.02 kg, but the option string changes — +K466 brings Ethernet adaptor versus the +B055+L512 option combo — so confirm the fieldbus slice and any option-card slot usage before signing the panel-cut change."},{"question":"How is ACS550-U1-072A-4+K466 sourced?","answer":"It is specified into the BOM and quoted to order against an RFQ with the full option string and the 380-480 V / 72 A / 37 kW rating called out, rather than pulled from generic shelf stock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS550-U1-072A-4~3K466","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-U1-072A-4~3K466 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}}