{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS355-03E-01A9-4","brand":"ABB","brandSlug":"abb","productSlug":"ACS355-03E-01A9-4","canonicalUrl":"https://aoctrl.com/abb/ACS355-03E-01A9-4","factsUrl":"https://aoctrl.com/api/mcp/products/ACS355-03E-01A9-4","rawCanonicalId":null},"summary":{"shortDescription":"ABB, ACS355 series, inverter drive, order code ACS355-03E-01A9-4, rated 0.37 kW / 0.5 hp at 1.9 A continuous on 400 V three-phase supply, RO frame IP20.","salesMarkdown":"The ABB ACS355-03E-01A9-4 is an IP20 inverter drive in the ACS355 series, sized for 3-phase 400 V supply at 0.37 kW (0.5 hp) continuous output with a 1.9 A nominal current rating — the smallest 400 V frame in the family, intended for sub-half-horsepower induction or permanent-magnet motors in OEM machines, conveyor sections, fan and pump skids, and small positioning axes. It sits on the RO frame, so the panel cut-out and DIN footprint are the compact end of the ACS355 line — worth flagging when the cabinet was originally laid out for an R1 frame, because R0 is narrower and the wiring gutter geometry differs. ## Reading the ratings for the real load The 1.9 A continuous figure is the normal-duty rating at 0.37 kW, with 22 W typical losses at nominal operating point. Variable-torque fans and pumps let the drive ride below 1.9 A most of the cycle; constant-torque conveyors and mixers stay inside that 1.9 A limit. The DC bus window is 250–840 V on this model, with 840 V as the maximum and 250 V as the minimum. That window matters when the drive is fed from a common DC bus rather than the AC line.","metaTitle":"ABB ACS355-03E-01A9-4 Inverter Drive, 0.37 kW / 1.9 A","metaDescription":"ABB ACS355-03E-01A9-4 ACS355-series inverter drive rated 0.37 kW / 0.5 hp at 1.9 A on 400 V three-phase, 22 W typical losses. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":[],"specifications":{"Weight":"1.2 Kg","I2N (A)":"1.9","PN (hp)":"0.5","PN (kW)":"0.37","Product No.":"ACS355-03E-01A9-4","Manufacturer":"ABB","Product Type":"Inverter Drive","Frame size IP20":"RO","Shipping Weight":"2.5 Kg","lifecycle_stage":"current","Typical losses W*)":"22","Estimated Lead Time":"Usually ships in 1 - 10 working days.","DC voltage range, Max":"840","DC voltage range, Min":"250","MPPT voltage range, Max":"800","MPPT voltage range, Min":"460"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$314.00 – $390.37","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3390e05675be3e522248c1c5623fbf14.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS355-03E-01A9-4/alternatives.json"},"ai":{"faq":[{"question":"Can the ACS355-03E-01A9-4 be swapped into a panel built for ACS355-03E-02A4-4?","answer":"Not without rework — the 02A4-4 is the R1 frame and is larger than the 01A9-4's R0 frame, so the mounting pattern, depth, and cable entry geometry differ even though the electrical family is the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS355-03E-01A9-4","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/ACS355-03E-01A9-4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}