What the VFD110CP43B-21 covers on the BOM line
The Delta VFD110CP43B-21 sits in the CP2000 fan/pump vector control line, specified for a 460V 3-phase input and rated to drive a 15 HP / 11.25 kW motor at 24 A — the kind of mid-frame load you see on AHUs, chilled-water pumps, and large cooling-tower fans.
Sourcing posture for an installed CP2000 spare
For a maintenance buyer holding a critical spare against an aging CP2000 panel, the practical question is lead-time, not EOL — keep one in the cabinet so a fan or pump swap doesn't idle the line while the drive is on the dock.
Upsizing from the 110 frame to the 150 frame
If a panel was originally specified around the 20 HP / 32 A VFD150CP43B-21, the 110-frame drive at 24 A is the smaller motor — same CP2000 family, same 460V 3-phase input class, but it cannot carry a 32 A motor load without tripping or current-limiting on the rating itself. The reverse — dropping the VFD110CP43B-21 into a slot built for the 150-frame — keeps the wall-mount footprint consistent within the CP2000 family but undersizes the drive for the larger motor; verify motor FLA against the 24 A rating before commissioning.