ABB ZPOW-7B1C Inverter Power Supply Board 880 580 Series

ABB ZPOW-7B1C Power Supply Board is the internal low-voltage power module for ABB’s ACS880 and ACS580 inverters, supplying the drive’s control electronics and providing the 3.3 V logic supply that powers the drive’s internal circuitry. This official replacement part is designated 3AXD50000017375 and is marketed as the ZPOW-7B1C for the 880/580 series, designed to slot into the drive’s power architecture to distribute and regulate the internal rails. In ABB’s hardware documentation, ZPOW denotes a family of internal power-supply boards within ACS880-based systems, with ZPOW-7B1C repeatedly referenced as a serviceable component in maintenance and refurbishment workflows. Used within the ACS880/ACS580 ecosystem, the ZPOW-7B1C plays a key role in restoring reliable low-voltage supply to the control modules and other subsystems when the drive is serviced or repaired.