{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS355-03E-03A3-4","brand":"ABB","brandSlug":"abb","productSlug":"ACS355-03E-03A3-4","canonicalUrl":"https://aoctrl.com/abb/ACS355-03E-03A3-4","factsUrl":"https://aoctrl.com/api/mcp/products/ACS355-03E-03A3-4","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS355-03E-03A3-4 inverter drive, 0.75 kW / 1.0 hp, I2N 3.3 A, frame R1 IP20, 1.2 Kg.","salesMarkdown":"The ACS355-03E-03A3-4: Typical losses at rated load are 36 W, which is the figure to feed into a cabinet thermal calc alongside the 1.2 Kg unit mass (2.5 Kg shipping) — frame R1 IP20 keeps the heat sink in the panel airstream rather than on the wall of an enclosure, so a few watts of margin in the dissipation budget pays off in a hot cabinet. ## DC bus window and what the auxiliary voltage entries actually mean The DC-side envelope is listed as 250 V to 840 V, which is the figure a controls integrator uses when the drive is fed from a common DC bus or a regen supply rather than directly from the AC line. The same record also lists an MPPT-style window of 460 to 800 V; that nomenclature reads like a photovoltaic inverter field rather than a machinery drive, so it should be treated as a data artefact on this listing and not interpreted as an instruction to wire a PV string into the DC link. ## Sizing against the second-source candidate The closest ACS355-03E family alternative is ACS355-03E-02A4-4 at 0.55 kW / 0.75 hp with I2N of 2.4 A — same frame R1 IP20 footprint, so the panel cutout, mounting holes and terminal map do not change, but the continuous current drops from 3.3 A to 2.4 A. If a panel was originally specified around the 02A4-4 and a 03A3-4 is fitted as a replacement, the wiring, contactor, fusing and EMC footprint all carry over unchanged; the substitution is over-rated, not under-rated, and is safe from a thermal standpoint. The reverse — dropping a 02A4-4 into a 03A3-4 panel — is the swap that needs an overload check before energising.","metaTitle":"ABB ACS355-03E-03A3-4 Drive, 0.75 kW, 3.3 A","metaDescription":"ABB ACS355-03E-03A3-4 inverter drive, 0.75 kW / 1.0 hp, I2N 3.3 A on frame R1 IP20. Specs, sourcing and second-source check vs ACS355-03E-02A4-4.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drives (VFD)"],"specifications":{"title":"ACS355-03E-03A3-4 - MACHINERY by ASEA BROWN BOVERI","Weight":"1.2 Kg","I2N (A)":"3.3","PN (hp)":"1.0","PN (kW)":"0.75","Product No.":"ACS355-03E-03A3-4","description":"ACS355-03E-03A3-4 - MACHINERY by ASEA BROWN BOVERI","Product Type":"Inverter Drive","Frame size IP20":"R1","Ratings PN (kW)":"0.75 PN (hp) : 1.0 I2N (A) : 3.3","Shipping Weight":"2.5 Kg","lifecycle_stage":"current","Typical losses W*)":"36","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":"$364.00 – $623.70","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f0554a59de8cef55d079b5d692330d7f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to ACS355-03E-03A3-4?","answer":"ACS355-03E-02A4-4 is the closest same-family alternative — same frame R1 IP20, same AC input, but rated 0.55 kW / 2.4 A instead of 0.75 kW / 3.3 A."},{"question":"Will ACS355-03E-03A3-4 drop into a panel specified around ACS355-03E-02A4-4 without rewiring?","answer":"Yes on the mechanical and wiring side — frame R1 IP20 is shared; the 03A3-4 is over-rated for the 02A4-4 application, so no overload reset is needed. The reverse swap (02A4-4 into a 03A3-4 panel) requires an overload check."},{"question":"What is the listed I2N of ACS355-03E-03A3-4?","answer":"3.3 A continuous, paired with the 0.75 kW / 1.0 hp nameplate rating on frame R1 IP20."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS355-03E-03A3-4","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-03A3-4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}