Which XING Laser Power Converter Matches Your Load?
When you're choosing between two industrial power converters, the first thing to settle is the voltage direction. The 30kVA 480V-to-208V step-down and the 50kVA 240V-to-380V step-up solve opposite problems. The step-down brings a 480V three-phase supply down to 208V, while the step-up brings a 240V three-phase supply up to 380V. Both are 3-phase to 3-phase autotransformers with AC-to-AC conversion, 60 Hz operation, and built-in ventilation, so the real decision comes down to which side of the voltage equation you are on.
Quick verdict
If your facility has 480V on the line and your equipment needs 208V, the 30kVA step-down is the direct match. If you're working from a 240V source and need 380V for the load, the 50kVA step-up is the one. The 50kVA unit also allows higher resistive and inductive load capacity, but it is in New - Open box condition and carries a higher listed price.
At a glance
| Product | Listed Price | Direction | Phases | Max Resistive Load | Max Inductive Load | Price Bar |
|---|---|---|---|---|---|---|
| 30kVA 480V-to-208V step-down | USD 950.00 | Step-down | 3 | 24 kVA | 18 kVA | |
| 50kVA 240V-to-380V step-up | USD 1,050.00 | Step-up | 3 | 40 kVA | 30 kVA |
Where each converter wins
- 30kVA step-down: Wins when the incoming supply is 480V and the load needs 208V, and when you want a new-condition unit. It is the lower-priced of the two.
- 50kVA step-up: Wins when the incoming supply is 240V and the load needs 380V, and for installations that need more headroom. Its maximum resistive and inductive load capacities are higher.
30kVA 480V-to-208V Step-Down Converter
This unit is listed as new and converts three-phase 480V input to 208V output at 60 Hz. It is rated 30 kVA, but the listing sets maximum resistive load at 24 kVA and maximum inductive load at 18 kVA, so the usable capacity is lower than the rated number. If your machinery expects 208V from a 480V supply, this converter provides the step-down direction you need. The limitation is headroom: a 24 kVA resistive ceiling means heavier inductive equipment could push past the safe limit. For buyers who prioritize new condition and matching the exact 480V-to-208V path, this is the straightforward pick.
50kVA 240V-to-380V Step-Up Converter
This unit is listed as New - Open box, and the description notes the original box was removed during customs inspection. It takes three-phase 240V and steps it up to 380V, which makes it the match when the source voltage is low but the load requires a higher level. The 50 kVA rating comes with higher resistive and inductive load ceilings than the 30kVA step-down. The main trade-off is the packaging: it is an open-box item without its original box. If you want the higher load ceilings and the 240V-to-380V path, this is the converter to choose.
Final choice by use case
If your power source is 480V and your load is 208V, the 30kVA step-down is the direct solution, and with a $100 lower listed price it is the easier pick for a tight budget. If your source is 240V and your load is 380V, the 50kVA step-up is the matching direction, and its higher load ceilings give you more room for larger equipment. When both voltage directions could work, the cheaper 30kVA unit is the natural first choice; when capacity is the priority, the open-box 50kVA unit earns the extra spend.
