Quanzhou Ausenist Technology Co., Ltd Single-Phase Input Water Pump VFD Selection
A single-phase input water pump VFD is useful when the site has 220-230V single-phase supply but the pump motor is a compatible three-phase 220-230V motor. The VFD output is three-phase, so motor compatibility must be confirmed first.
Recommended Configuration
| Item | Reference Selection |
|---|---|
| Motor | Three-phase 220-230V pump motor |
| Input | 220-230V single-phase |
| Output | 220-230V three-phase |
| Pump | Booster, transfer or small centrifugal pump |
| Control | Manual speed or PID pressure control |
| VFD | AUSENIST 230V-class pump VFD selected by current |
What Must Be Confirmed?
- Motor winding voltage and connection method.
- Motor rated current and service factor.
- Available single-phase input capacity.
- Pump starting and pressure requirements.
- Breaker and cable size for higher input current.
Selection Logic
Single-phase input current is higher than the three-phase motor current. The drive, breaker and feeder must be checked carefully. A 380V-only motor cannot normally run from a 230V-class VFD without a special solution.
Common Mistakes
- Connecting a single-phase motor to a standard three-phase output VFD.
- Assuming 220V input can directly power a 380V motor.
- Ignoring input current and cable capacity.
- Selecting only by pump power.
AUSENIST Solution
AUSENIST can match a 230V-class pump VFD for compatible three-phase motors and help confirm whether the existing motor can be used. Motor nameplate photos are required for accurate selection.
FAQ
Can it run a single-phase pump motor?
Not normally. This selection is for compatible three-phase pump motors.
Can it output 380V from 220V input?
Only with a special step-up solution, not a normal 230V-class VFD.
What should I send for confirmation?
Send the motor nameplate, supply voltage, pump power and application details.
Related AUSENIST Pages
Send AUSENIST your motor nameplate before ordering a single-phase input pump VFD.