Quick Take
When your equipment needs a different AC voltage, the first decision is direction: step up or step down. These four Xing Laser converters are all 3-phase autotransformers operating at 60 Hz. Three step up from 208V; one steps down from 480V. If you are feeding 380V tools from a 208V line, the 30kVA 208V-to-380V unit is the direct fit. Need 400V instead? The 30kVA 208V-to-400V model is the match. For greater capacity and 480V output, the 50kVA 208V-to-480V step-up converter is the largest step-up option. The only converter that takes 480V down to 380V is the 50kVA step-down model.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| 50kVA Step Up Transformer 208V to 480V Industrial Power Converter 3 Phase | USD 1,050.00 | |
| 30kVA Step Up Transformer 208V to 400V Industrial Power Converter - NEW | USD 950.00 | |
| 30kVA Step Up Transformer 208V to 380V Industrial Power Converter | USD 950.00 | |
| 50kVA Step Down Transformer 480V to 380V Industrial Power Converter | USD 1,050.00 |
The two 30kVA units are at the lower listed price and the two 50kVA units at the higher, a USD 100 spread.
Decision Matrix
| Use Case | Recommended Model | Output Voltage |
|---|---|---|
| Step up from 208V to 480V | 50kVA Step Up Transformer 208V to 480V | 480V |
| Step up from 208V to 400V | 30kVA Step Up Transformer 208V to 400V | 400V |
| Step up from 208V to 380V | 30kVA Step Up Transformer 208V to 380V | 380V |
| Step down from 480V to 380V | 50kVA Step Down Transformer 480V to 380V | 380V |
Product Notes
50kVA Step Up Transformer 208V to 480V Industrial Power Converter 3 Phase
Choose this unit when your equipment runs on 480V and your feed is a 208V 3-phase supply. It is the only step-up converter in the group with a stated 50kVA rating, which gives it more capacity than the 30kVA models. The listed load guidance limits resistive loads to 80% and inductive loads to 60%, so a 50kVA unit supports a 40kVA resistive maximum and a 30kVA inductive maximum. That headroom is useful if you are running multiple resistive devices or motor loads within those caps. The trade-off is that this is a step-up unit only: it will not convert 480V down to 380V or 208V. If your feed is already 480V, the step-down model is the one to consider.
30kVA Step Up Transformer 208V to 400V Industrial Power Converter - NEW
This converter is the direct step-up match when the downstream equipment expects 400V. It is listed as new and built as a 3-phase autotransformer with a 60 Hz maximum operating frequency. With a 30kVA rating, the load guidance means a resistive maximum of 24kVA and an inductive maximum of 18kVA, so the practical steady-state headroom is lower than the 50kVA step-up model. It is a solid fit for equipment that draws well below those levels and needs exactly 400V. The limitation is capacity: if your actual load approaches or exceeds 24kVA resistive or 18kVA inductive, this unit will not have enough margin. It also cannot step down from 480V to 400V.
30kVA Step Up Transformer 208V to 380V Industrial Power Converter
If your 380V equipment is on a 208V 3-phase line, this unit gives you the matching secondary voltage without a step-down detour. It is listed as new and shares the same design and 60 Hz operating frequency as the other converters. The 30kVA rating carries the same load-guidance limits as the other 30kVA step-up model, so you should keep the 80% resistive and 60% inductive ceilings in mind when planning connected equipment. The reason to pick this model over the 400V or 480V step-up units is simple: your output target is 380V. The limitation is that it does not have the 50kVA capacity of the larger models, and it cannot step down from 480V.
50kVA Step Down Transformer 480V to 380V Industrial Power Converter
This is the only converter in the group that steps down from 480V to 380V. Its listed condition is new open box, and the description notes that the original box is not included, so the packaging may be different from a factory-sealed unit. It is a 3-phase autotransformer from Xing Laser with a 60 Hz rating. If you already have 480V at your facility and your machinery requires 380V, this model fills that gap directly. The limitation is condition-related: the open-box state means the presentation is not sealed, even though the converter is listed as new. It also cannot step up from 208V, so it will not serve a 208V-to-380V feed.
Which one should you pick?
If your goal is 480V from a 208V feed and you want the biggest step-up capacity here, the 208V-to-480V step-up transformer at USD 1,050.00 is the choice. If you need 400V, the 208V-to-400V step-up model at USD 950.00 is the direct match at the lower listed price. For 380V from 208V, the 208V-to-380V step-up model at USD 950.00 is the one to start with. And if you are working with a 480V supply that needs to feed 380V equipment, the 480V-to-380V step-down model at USD 1,050.00 is the only converter in this set with that direction.
