Drive ratings and load matching
The Delta VFD022C43A is a C2000 series AC drive rated for 460 V three-phase input. It carries two duty ratings: heavy duty at 1.5 kW (2 HP) with 5.7 A output current and a 300 Hz max frequency, and normal duty at 2.2 kW (3 HP) with 6.0 A output and a 599 Hz max frequency. The normal-duty figure applies to variable-torque loads (centrifugal pumps, fans) where the drive can exploit the quadratic torque curve to stay within thermal limits.
Carrier frequency and motor cable length
Default carrier frequency is 2 kHz in heavy-duty mode, adjustable up to 6 kHz. Raising the carrier quiets the motor but increases switching losses and derates the output current. For long motor cable runs — over about 50 metres — keep the carrier at the 2 kHz default to reduce reflected-wave stress on the motor windings. The normal-duty mode defaults to 8 kHz and can go to 15 kHz, but the same cable-length caution applies.
Production status and sourcing
The VFD022C43A is listed as current production, so it remains a valid BOM line for new builds and spares.
