1/2 hp VFD, Single Phase to Three Phase VFD

Low cost 1/2 hp VFD, convert single phase to three phase for AC motor speed controls, 208V - 240V 3 amps, IP20, RS485 enabled, manufacturer direct sale.
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Delivery date: 6 - 12 days

1/2 hp VFD, 0.4 kW, 208V - 240V single phase to three phase variable frequency drive, sale by manufacturer directly.


Basics Model GK3000-2S0004
Capacity 1/2 hp (0.4 kW)
Shipping weight 2 kg
Dimension 142*85*113 mm
I/O Feature Rated current 3 A
Input voltage 1 phase 220~240V AC ±15%
Input frequency 50Hz/ 60Hz
Output voltage 3 phase AC 0~input voltage
Output frequency 0.00~400.00Hz
Over load capacity 150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature Control mode V/F control;
Sensorless vector control;
Communication RS485
Speed regulation 1:100
Start torque 150% of rating torque at 1 Hz
Speed control accuracy ≤±0.5% of rating synchronous speed
Frequency precision Digital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
Frequency resolution Analog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
Torque boost Automatic torque boost, manual torque boost 0.1%~30.0%
Interior PID controller Be convenient to make closed-loop system
Automatic energy save running Optimize V/F curve automatically based on the load to realize power save running
Automatic voltage regulation (AVR) Can keep constant output voltage when power source voltage varies.
Automatic current limiting Limit running current automatically to avoid frequent over-current which will cause trip
Environment Enclosure rating IP 20
Temperature –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
Humidity 5%-95%, without condensation
Altitude ≤1000m; VFD will be derated if above 1000m
Impingement and oscillation Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
Store environment –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight


Tips: What are the key factors to be considered for an outdoor VFD application?

1) What are the maximum and minimum ambient temperatures?
2) What is the maximum humidity?
3) Will the variable frequency drive (VFD) be exposed to direct sunlight?
4) Are these VFDs being applied to existing motors, or is it a new installation? (Are the motors VFD rated?)
5) What is the distance between the motor and VFD? (Motor lead length?)
6) Is the altitude at the installation site higher than 1000m ASL?

Heat, dust or dirt and moisture are critical questions for what appears to be outdoor applications, but if these VFDs are being applied (for example) to submersible pumps operating 1000'+ feet below the VFD, you need to know that, too.

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PDF: GK3000 VFD User Manual
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