Quanzhou Ausenist Technology Co., Ltd 3kW 230V Single-Phase Input VFD for a Hotel Booster Pump
Engineering reference image; final wiring and model selection depend on the project data.
A 3kW hotel booster pump can run from a 230V single-phase input VFD when the pump motor is a compatible three-phase 220–230V motor and the drive output current covers the motor nameplate current. The VFD output is three-phase; a single-phase pump motor is not automatically suitable.
Recommended Configuration
| Item | Reference Selection |
|---|---|
| Motor | 3kW, three-phase, 220–230V |
| Input | 220–230V single-phase |
| Output | 220–230V three-phase |
| Pump | Vertical multistage booster pump |
| Control | Constant-pressure PID |
| Sensor | 4–20mA pressure transmitter |
| VFD | AUSENIST 230V-class pump VFD, selected by current |
What Must Be Confirmed?
- Motor voltage, current, frequency and star/delta connection.
- Maximum hotel demand, static head and target pressure.
- Sensor range and installation point.
- Input breaker, cable capacity and supply-voltage stability.
- Whether one pump or a duty/standby pair is required.
Selection Logic
Do not select by 3kW alone. Compare the motor rated current with the VFD continuous output current. Single-phase input current is higher than the three-phase motor line current, so the feeder and breaker need a separate check. Enter the motor nameplate data, scale the pressure sensor correctly, and use gradual acceleration to limit pipe shock.
Common Mistakes
- Connecting a 380V-only motor to a normal 230V-class VFD.
- Assuming the output is single-phase because the input is single-phase.
- Ignoring the high current drawn from the 230V feeder.
- Using a pressure setpoint without checking the pump curve.
AUSENIST Solution
AUSENIST can match the drive current, preset PID and protection parameters, and support pump-mounted or OEM configurations. This solution is unsuitable until the motor winding voltage and available input capacity are verified.
FAQ
Can it run a 230V single-phase motor?
Not by default. This reference design is for a compatible three-phase motor.
Is a pressure tank still useful?
A small correctly selected tank can reduce rapid pressure changes and frequent wake cycles.
What information is needed for a quotation?
Send the motor nameplate, pump curve, required pressure, supply details and quantity.
Related AUSENIST Pages
- 220V single-phase input to 380V output for a borehole pump
- YS820 control for a three-pump booster system
Send us your motor nameplate and hotel pressure requirement. AUSENIST can recommend the VFD model and basic parameter configuration.