Choosing a variable frequency drive for motor controls can feel like a real fork in the road. Do you go with a used drive carrying a specific model number, or do you choose a new drive that spells out its input and output ratings? The two drives here make that decision concrete: a used Vortek SP1406 Unidrive SP and a new 1 To 3 Phase 7.5KW 10HP 220V VFD.
Quick verdict
The new 7.5KW 10HP 220V VFD, at $130.11, is the simpler pick for most new motor-control builds. It is the lower-priced unit in this pairing and it comes with a clear specification set: 220V input that can be 1 or 3 phase, 3-phase output, 20A per phase, and an output frequency range up to 3200Hz. The Vortek SP1406 makes sense when you are replacing or repairing a specific Unidrive SP drive and you are comfortable with a used unit sold as-is.
Comparison
| Drive | Listed price | Price level | Condition | What stands out |
|---|---|---|---|---|
| Vortek SP1406 Unidrive SP | $359.97 | Used | Unidrive SP model number; sold as-is. | |
| 1 To 3 Phase 7.5KW 10HP 220V VFD | $130.11 | New | 1 or 3 phase 220V input; 3-phase output; SPWM; 20A per phase. |
Where the Vortek SP1406 wins
If your motor-control application calls for a Unidrive SP drive, the SP1406 gives you a specific model to match. The listing describes it as removed from a working environment and sold as-is, with only the pictured items included. That context matters if you already have a failed unit and want a like-for-like replacement candidate. It is not the low-price option in this pairing, but the model specificity is the main reason to consider it.
Where the new VFD wins
The new 7.5KW 10HP drive wins on price and specification clarity. You can see the key operating details directly: 220V input, 48-63Hz input frequency, 208-240VAC 3-phase output, 0-3200Hz output frequency, SPWM control mode, and 20A maximum per phase. If you want to know what you are getting before you buy, this drive gives you a much clearer picture.
Product notes
Vortek SP1406 Unidrive SP Variable Frequency Drive
If you need to match an existing Unidrive SP installation, the SP1406 model number is the concrete reason to look at this used drive. The listing says the unit was removed from a working environment and sold as-is, and that only the pictured items are included. That makes the limitation simple: you are buying the unit exactly as pictured, with only the items shown. For a shopper who needs the Unidrive SP family and can work with a used unit, that trade-off can be worth it.
1 To 3 Phase 7.5KW 10HP 220V Variable Frequency Drive Inverter CNC VFD VSD
The new drive's strong point is that it spells out its electrical parameters. The listing specifies 220V input with a 1- or 3-phase option, 3-phase output at 208-240VAC, an output frequency range of 0-3200Hz, SPWM control mode, and a 20A maximum per phase. That makes it easier to match to a motor before you commit. The main limitation is also in the listing: it is described as a light-load model, so it is positioned for lighter motor-control tasks rather than heavy industrial duty. For a new drive that fits a 7.5KW/10HP class 220V setup, this is a practical choice for many workshops.
Final choice by use case
If you are doing a like-for-like replacement of a Unidrive SP drive and can accept a used unit sold as-is, the Vortek SP1406 is the drive to match. If you are outfitting a new 7.5KW/10HP 220V motor-control project and want a new drive with clear electrical ratings, the 1 To 3 Phase VFD is the more straightforward final choice.
