Introduction
ABB's ACS series variable frequency drives are installed in millions of industrial applications worldwide — from pump and fan control to complex motion systems. When an older ACS drive fails, finding a direct replacement can be surprisingly difficult.
ABB regularly transitions customers to newer drive generations, leaving older ACS200, ACS400, ACS600, and early ACS800 models with limited spare parts availability.
Commonly Sourced Legacy ABB Drive Models
- ACS200 / ACS300 — Fully discontinued. Control boards and power modules are scarce.
- ACS400 — Discontinued. Popular in HVAC and pump applications, high demand for replacements.
- ACS600 — End-of-life. Large frame sizes particularly difficult to source.
- ACS800 (early revisions) — Some control units and IGBT modules discontinued.
- ACS550 — Approaching end-of-life in some markets.
Repair vs. Replace: What's the Right Decision?
For legacy ABB drives, buyers typically face three options:
- Source a replacement unit — Best for drives where repair cost exceeds unit value.
- Source spare boards/modules — Cost-effective for large frame drives where full replacement is expensive.
- Upgrade to current generation — Recommended when the application allows reprogramming and the drive is critical.
NORTHLINK can advise on the most cost-effective approach based on your specific drive model and application.
Request ABB Drive Parts from NORTHLINK
Submit your ABB drive model number and fault description through our Request a Quote page. Our team will assess availability of replacement units and spare modules.