750 kva transformer step up transformer 208 to 480 3 phase
If you’re ordering more than one, let’s talk straight. This 750 kVA 208 to 480V transformer is a spec we build often—used in HVAC retrofits, data centers, and export systems. We know the configuration, and we’re ready to deliver at scale.
Dry-type, air-cooled, 3 phase. Top or side terminals, copper or aluminum, IP23 or open frame—we’ll match your install plan. Need type test reports, dimensional drawings, or scheduled delivery? Just tell us up front—we’ve done it before.
We’ve supplied batches to panel builders, generator integrators, and public contractors. If this spec is part of your BOM, we’ll keep it consistent. You set the pace—we align production.
Photovoltaics – Fresno, California, USA
The inverter system was locked to 208V. The interconnect panel? 480V only. The solar firm in Fresno didn’t want to change their string layout, and the AHJ wouldn’t accept a voltage mismatch at the tie-in.
We stepped in with a 750 kVA dry-type step-up transformer, configured for 208V to 480V, copper-wound, top-entry, and mounted directly behind the main AC disconnect. Wiring landed through the existing rooftop channel—no conduit rerouting.
On inspection day, the site rep told us, “You made the utility guy happy. That alone saved us a week.”
Energy Storage – Raleigh, North Carolina, USA
They had a 208V output from their PCS. The distribution gear? All rated for 480V. The integrator didn’t want to touch the battery controls—they just needed clean voltage in, stable voltage out.
We provided a 750 kVA step-up transformer, dry-type, Class H, aluminum windings, bottom cable entry, and side-clearance for O&M access. It was positioned directly behind the PCS rack, grounded to their skid frame, and tested alongside the inverter loop.
Two weeks after install, their tech emailed one line: “Power’s stable, gear’s cool. That’s all I care about.”
Data Center – Montreal, Canada
Their genset came in at 208V. Their UPS system, distribution switchboards, and HVAC feeds all demanded 480V. And no one was going to rewire a 4 MW facility just for that mismatch.
We designed a 750 kVA 3-phase step-up transformer, 208V to 480V, dry-type, copper windings, top-exit terminals to fit their existing trench layout. Enclosure was IP23 for indoor mechanical room use, built to fit a service aisle less than 1.2m wide.
By the time we followed up, the answer was short: “UPS synced first shot. We didn’t even open the spare unit.”
Wind-to-Hydrogen – Zeeland, Netherlands
Their wind system was built around 208V for safety. The H2 compression stage? Built for 480V. Changing specs would void the turbine warranty, and the site was already under commissioning.
We shipped a 750 kVA step-up transformer, 208V to 480V, dry-type, epoxy-sealed core for humidity resistance, and a front-wired terminal box so it could be serviced without crane lift. It sat on a steel rack between the inverter house and electrolyzer control.
Site manager said after handoff: “This kept our handshakes intact. No change orders, no delays.”
Medical – Detroit, Michigan, USA
They were adding new imaging equipment in an older wing, but the room only had access to 208V. The gear required 480V, and the hospital couldn’t afford downtime in surrounding departments.
We delivered a 750 kVA dry-type transformer, 208V to 480V, low-noise core, shielded cabinet, and side terminals to run with the existing floor conduit. Install took 3 hours. No breakers tripped. No ceiling tiles cut.
The facility supervisor’s words: “Honestly? The quietest part of the whole upgrade.”
- Data Sheet
- Three Phase Transformer Catalog
- Shinenergy Product Catalog
| Certification | UL |
| Phase | Three Phase |
| Rated capacity | UP TO 3000KVA Customized |
| Frequency | 50/60Hz |
| Work Efficiency | UP TO 99.05% |
| Protection Class | IP00/IP20/IP23/IP40/IP44/IP54 |
| Winding Material | Copper or Aluminum |
| Insulation level | Class F (155°C) Class H (180°C) Class N (200°C) Class R (220°C) |
| Designed lifetime | ≥30 years |
| Cooling Method | Air Cooling |
| Wiring Configuration | Δ-Y (Delta-Star)/Y-Y (Star-Star)/Δ-Δ (Delta-Delta)/Y-Δ (Star-Delta) /Δ-Z (Delta-Zigzag)/ Y-Z (Star-Zigzag) |
| Noise | ≤35 dB (1 meter) |
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Boost from 208V to 480V—Without Rebuilding Your Power System
Many facilities in North America still rely on 208V three-phase power—whether it’s from an aging utility feed, backup generator, or small-scale distribution. But modern machinery, HVAC systems, and export equipment often demand 480V. That’s where the mismatch happens—and that’s where we come in.
Our step up transformer 208 to 480 3 phase gives you a clean voltage bridge without major rewiring or system redesign. We build dry-type transformers in common capacities like 150, 225, 500, and 750 kVA, with copper or aluminum windings, top or side terminal access, and insulation options up to Class H. Whether it’s for indoor mechanical rooms or export-ready applications, we size each unit to fit your load, voltage, and installation space.
Every transformer ships with a custom wiring diagram for fast, accurate installation—no guesswork. From hospitals upgrading old wings to contractors integrating rooftop solar or generator backup, our transformers help clients stay on spec, stay safe, and stay on schedule.
If your project starts with 208V and ends with 480V, we’re ready.
It’s commonly used when your available power is 208V three-phase, but your equipment requires 480V. It’s a typical issue in older U.S. buildings, and this transformer bridges that gap safely.
We provide a full wiring diagram with every order. It shows input/output terminals, voltage taps, and grounding points. If you have specific connection types (delta, wye, etc.), we label accordingly.
Yes. It’s commonly used in genset applications where the generator produces 208V, but the connected system (like UPS or HVAC) needs 480V. It avoids having to spec a different generator.
Popular ratings include 150, 225, 500, and 750 kVA. We can customize higher capacities as needed, depending on load and voltage drop allowance.
Yes. Our 208 to 480V 3 phase step-up transformers are available with UL/CE certification upon request. Great for U.S. compliance or export-oriented projects.