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3HP VFD, single phase input to three phase output VFD

3HP Variable Frequency Drive, 1 phase in / 3 phase out

VFD Capacity: 3 HP (2.2 kW)
Input: 200 - 240V AC 50/60Hz, single phase
Output: 0 - input volts, three phase
Output frequency: 0 Hz - 400 Hz
Rated current: 10 amps
Dimension: 230 x 155 x 164 mm
Weight: 4 kg

VFD Control mode: open loop V/F control
Overload capacity: 150% rated current for 1 minute

Communication: RS480 (optional), standard ModBus protocol

Enclosure: IP20
Operation temperature: -10°C to +40°C, for higher temperature, VFD derate 5% capacity per 1°C

The most common applications of 3hp VFD are Fans and Pumps, just like larger HP drives, it changes the power line input of 1 phase 50Hz/60Hz into variable frequency to feed the 3 phase motor, thus reducing the 3 phase motor speed and electricity consumption.

When input single phase power to the variable frequency drive, you need to double the size of the VFD. For example, If you have a 230V, 4.5amp, 3 phase motor and your feeding the VFD with a single phase 230V source, the size of the variable frequency drive needs to be 230V, 9.0 Amps, say a 3HP VFD. When applying single phase rating input to the VFD, R & S terminals have to be used. This provides voltage to the transformer that supplies 120 volts to drive blower fan. If these terminals are not used, the drive blower fan will not power up and the VFD over heating situation may occur.