The problem: a failing control power supply board can bring an ABB ACS800-104 inverter module to a halt. Replacing the board doesn't have to mean buying a brand-new assembly, but choosing a used unit carries real risk. The ABB APOW-11C at USD 80 is one of those parts that looks like a solid deal on paper. Here's what you need to know before you commit.
Quick verdict
The ABB APOW-11C Control Power Supply Board is a used, tested replacement for the ACS800-104 inverter module. At USD 80, it's a low-cost way to get a 3-phase control power supply back into service. The board is listed as fully functional after testing, so the main question is whether you're comfortable with a used part in a critical drive.
Who it suits
This part suits technicians and maintenance teams already working with ABB ACS800-104 inverter modules and industrial power supplies transformers. If you have a faulty control power supply in that drive and you're comfortable verifying the board on arrival, the APOW-11C is an obvious candidate. It also fits repair shops that stock tested spares for this type of equipment and want a specific model number match.
What stands out from the listed details
The board is explicitly built for the ABB ACS800-104 inverter module. The model number APOW-11C makes it easy to cross-check against your drive's parts list. The seller describes it as used but fully functional, so it's not a 'for parts' or 'untested' board.
Meaningful trade-offs
The biggest trade-off is the used condition. A tested used board is not the same as a factory-sealed replacement. You're relying on the seller's test rather than a manufacturer's fresh part. Also, this is a single unit, not a bulk purchase, so if you need multiple boards, you'll have to source separate units. The country of origin is listed as China, which may matter for your own sourcing policies, but the board is still branded ABB. Make sure your ACS800-104 module revision matches this board before ordering.
Product note
ABB APOW-11C Control Power Supply Board

The APOW-11C is your specific part for the ACS800-104 inverter module. It's a 3-phase control power supply board that has been tested and is fully functional. Choose this if you need a working replacement and want to spend USD 80 instead of paying for a new board. The limitation is that it's used, so you should verify compatibility with your inverter module's exact revision and be ready to test it once it arrives.
Bottom line
If your main priority is keeping an ABB ACS800-104 inverter module in service without the cost of a new assembly, the used APOW-11C is a solid practical choice. Confirm the fitment before you buy.