{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ACS355-03E-08A8-4","brand":"ABB","brandSlug":"abb","productSlug":"ACS355-03E-08A8-4","canonicalUrl":"https://aoctrl.com/abb/ACS355-03E-08A8-4","factsUrl":"https://aoctrl.com/api/mcp/products/ACS355-03E-08A8-4","rawCanonicalId":null},"summary":{"shortDescription":"ABB ACS355 series inverter drive, 4 kW, 3-phase, 400 V ac, 8.8 A, frame size R1, input 250 to 800 V DC or 380 to 480 V.","salesMarkdown":"## What the line carries The ACS355-03E-08A8-4 is a 3-phase 400 V ac inverter drive on frame size R1, product number ACS355-03E-08A8-4, rated 4 kW at 8.8 A. At 1.2 Kg net and 7 cm x 18.7 cm x 23.9 cm on the R1 chassis, it sits in the same panel footprint as the rest of the R1 cohort — useful when a spare slot was punched for the family, not for this specific current rating. ## Where this rating sits in the R1 family Inside the same R1 footprint, the ACS355-03E-01A9-4 is the 1.9 A / 0.37 kW point and the ACS355-03E-02A4-4 is the 2.4 A / 0.55 kW point — same chassis, same shipping weight of 2.5 Kg, same R1 frame. What changes is current and power: this 8.8 A / 4 kW unit is several steps up the rating ladder from those siblings, so the footprint swap is mechanical but the motor feeder, breaker sizing, and thermal margin are not — substituting the 1.9 A or 2.4 A variant into an 8.8 A slot would not carry the motor. ## What a swap actually requires Same R1 frame and same 1.2 Kg net weight means the mechanical drop-in is straightforward on a panel that was laid out for the ACS355 family — the mounting holes, cooling clearances, and terminal landing all carry across the R1 cohort. Beyond the chassis, the parameters that do not carry between ratings are the motor-side sizing: feeder protection, contactor class, and brake-resistor selection are all anchored to the 8.8 A / 4 kW rating on this specific code, not to the R1 frame in general.","metaTitle":"ABB ACS355-03E-08A8-4 Inverter Drive, 4 kW, 8.8 A, 400 V","metaDescription":"ABB ACS355-03E-08A8-4 inverter drive, 4 kW, 3-phase 400 V ac, 8.8 A, frame R1, input 380-480 V or 250-800 V DC. Specified into the BOM, quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":[],"specifications":{"Weight":"1.2 Kg","Frame size":"R1","Product No.":"ACS355-03E-08A8-4","Manufacturer":"ABB","Product type":"ABB Inverter Drive","Input Voltage":"250 to 800 V DC or 380 to 480 V","Shipping weight":"2.5 Kg","lifecycle_stage":"current","Dimensions (LxWxH)":"7cm x 18.7cm x 23.9cm","Estimated Lead Time":"Usually ships in 1-10 working days."}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$661.00 – $1,005.16","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b19c78c04e9b3398ca0b33d0f319f171.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/ACS355-03E-08A8-4/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second source — ACS355-03E-01A9-4?","answer":"ACS355-03E-01A9-4 is the 1.9 A / 0.37 kW point on the same R1 frame and same shipping weight of 2.5 Kg, so it shares the chassis and the panel footprint but not the rating — it is a same-family sibling, not a current-equivalent replacement for an 8.8 A / 4 kW load."},{"question":"What is the listed frame size?","answer":"Frame size R1 — the same chassis class as the lower-rated ACS355-03E-01A9-4 and ACS355-03E-02A4-4 siblings."},{"question":"Will ACS355-03E-08A8-4 drop into a panel that was specified around ACS355-03E-01A9-4 without rewiring?","answer":"Mechanically yes — both sit on the R1 frame at the same 1.2 Kg net / 2.5 Kg shipping weight, so the mounting and panel cutout carry across. Electrically no — the 8.8 A / 4 kW rating is several steps above the 1.9 A / 0.37 kW of the 01A9-4, so the motor feeder, protection, and contactor class must be re-sized for the larger unit even though the chassis does not change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/ACS355-03E-08A8-4","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-08A8-4 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}}