When you're comparing variable-frequency drives and motor controls for a three-phase motor from a 220 V single-phase supply, the real question is how much motor you have to turn. One path is a drive designed for lighter loads. The other is a higher-capacity inverter. The right choice comes down to the motor load and the power feed you have available.
Quick verdict: If your motor is on the smaller side and you want to keep the upfront cost down, the marddpair 2.2 kW drive at USD 65.83 is the lighter-duty pick. If you need more power headroom, the findmall 7.5 kW drive at USD 118.92 is the more capable option.
At a glance
| Product | Listed price | Price bar | Key specs |
|---|---|---|---|
| marddpair 2.2 kW VFD | USD 65.83 | 3 HP, 1-phase 220 V input, 23 A input current, 50-60 Hz input frequency | |
| findmall 7.5 kW VFD | USD 118.92 | 10 HP, 1-phase or 3-phase 220 V input, SPWM control, 0-400 Hz output frequency, 20 A max per phase |
Where each product wins
Marddpair: The compact body and lower listed price make it the easy pick when panel space is tight and the motor is not asking for much power. It is the simpler, smaller-footprint option of the two.
Findmall: It brings more input flexibility and a wider output frequency range, and it handles both constant-torque and variable-torque loads. The extra capacity is the main reason to step up.
marddpair 1-to-3 Phase VFD
The compact inverter makes sense when your motor is on the lighter end of the spectrum and you want a drive that can sit close to other components. A narrow body, independent air duct, and side-by-side mounting capability help when building or retrofitting a control panel. A 23 A input current lets you compare it with your supply wiring. The limitation is the lower power ceiling: if your motor load is heavy, this compact drive will be undersized. That makes it a practical choice for small machinery rather than a universal converter for every phase-conversion job.
findmall 1-to-3 Phase VFD
This drive is the higher-capacity option in the pair, and its SPWM control system works for constant torque loads such as air compressors and HVAC units as well as variable torque loads like pumps and fans. It accepts 1-phase or 3-phase input, which gives you more ways to feed it from the power you already have. The drawback is the listed price: it costs more than the marddpair, so the extra spend only makes sense if your application actually uses the additional capacity. If you're simply running a small single-speed motor, the added power is not necessary.
Final choice by use case
- 3 HP motor: Choose the marddpair drive. It matches the motor class and keeps the cost in the lower part of the price range.
- 10 HP motor: Choose the findmall drive. The higher price buys more capacity, and the input flexibility is a bonus if your power setup changes.
