100 kVA Single Phase 208V to 240V Transformer
Running 208V but need 240V? This transformer bridges the gap—no rewiring, no rethinking your system. Power your control panels, HVAC units, or legacy gear with clean, isolated 240V output.
Dry-type, UL-listed, and built to last. We supply OEMs and contractors with consistent specs, quick turnarounds, and plug-ready units that drop straight into your workflow.
Photovoltaic Projects – Rooftop Solar in Arizona
“We had a solar installer in Arizona running 208V systems for residential jobs, but the inverters they sourced all required 240V input. We supplied a batch of 100 kVA single-phase step-up transformers that mounted right next to the outdoor distribution panels. No need to touch the main service—clean voltage, smooth performance. The client said the whole rollout went easier than expected.”
Energy Storage – HVAC Power on Battery Racks
“A system integrator in Germany needed to power HVAC control units inside battery racks. Their internal devices ran on 240V, but the auxiliary output on-site was 208V single-phase. They were concerned about low-voltage lockouts. We sent them our 100 kVA units. The transformers fit perfectly on the rack wall. Plug-and-play. They said the units worked right out of the crate—no adjustments.”
Data Centers – Fixing Imported Lighting Equipment
“There was a project in Manchester, UK, where the site ran on 208V distribution, but they brought in LED fixtures from Italy designed for 240V. The lights were flickering and failing. We quickly delivered a batch of 100 kVA step-up transformers. They dropped them in at the floor panels—problem solved. The site PM emailed us later just to say thanks for the fast fix.”
Hydrogen – Cabinet Power in a Danish Pilot Station
“At a hydrogen pilot site near Aarhus, Denmark, their control cabinet PLCs and HMI screens required 240V, but they only had 208V auxiliary power. Rewiring wasn’t an option. We suggested adding a 100 kVA transformer next to the cabinet. It fit nicely, and they told us later the voltage output was not just stable—it was cleaner than before.”
Medical – Imaging Room Voltage Correction
“A teaching hospital in Ohio had imaging support equipment that wasn’t running well on their 208V setup. They were mid-retrofit and couldn’t change the main power. We shipped a 100 kVA step-up unit to serve just that room. After installation, their engineers reported faster calibration and fewer interruptions. Sometimes the smallest adjustment makes the biggest difference.”
- 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) |
| Three Phase Transformer Catalog | |
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Navigating 208V to 240V Power Mismatches
Powering a 240V-rated device in a 208V facility? Or needing to drop from 240V to 208V for retrofit compatibility?
This happens more often than you’d expect—especially with U.S. buildings using 208Y/120V and equipment expecting 240V.
The key is choosing the right transformer type:
- Use a 208V to 240V buck boost transformerif the voltage gap is small and you’re only correcting ±16V.
- Choose a 208V to 240V transformer 3-phaseif you’re supplying entire panels or heavy equipment.
- Go with a step down transformer 240V to 208Vwhen retrofitting old HVAC or control systems to match newer infrastructure.
We’ve also helped customers resolve 3-phase issues using:
- 240V delta to 120/208V wye transformerfor lighting + 3-phase loads
- 208V to 240V single phase transformerfor compressors or lighting
- 240V to 208V boost transformerto prevent undervoltage faults in automation panels
Need help matching your exact load and voltage configuration? We ship labeled units, connection guides, and support diagrams—because the voltage might be off, but your deadline can’t be.
A 208V to 240V transformer typically refers to a full isolation transformer. A buck boost transformer 208V to 240V, on the other hand, is a smaller, more efficient option for minor voltage correction—ideal when the voltage difference is less than 30V.
Yes, we supply 208V to 240V step-up transformer 3-phase models. These are used when your system needs to match equipment running on 240V 3-phase, especially in HVAC or imported machinery setups.
We recommend a step down transformer 240V to 208V single phase. This is common in retrofit projects where equipment is rated for 208V but the building service is 240V.
Yes. A 240V delta to 120/208V wye transformer allows you to supply both 208V 3-phase and 120V single phase from a delta-fed system, commonly used in commercial and mixed-use buildings.
Yes, when properly sized. A 208V to 240V boost transformer improves voltage without full isolation. For critical loads or high inrush current, we recommend using a full 208V to 240V transformer for stable output.
We provide a full 208V to 240V buck boost transformer wiring diagram with every unit. Connection varies depending on whether you’re correcting line-to-line or line-to-neutral voltage. Our team can help you configure it.
Not directly. You would need a phase converter plus transformer. However, we do supply 240V single phase to 208V 3 phase transformer kits for light industrial use.