480 3 phase to 120 single phase transformer
This transformer converts 480V three-phase input to stable 120V single-phase output, perfect for isolated loads like lighting, control panels, or network devices. It’s a go-to option for EPCs, OEMs, and facility teams needing clean single-phase power in a high-voltage environment. UL-listed, standard-sized, and available for fast batch deployment.
Photovoltaic (PV) Systems
In a Florida-based commercial solar installation, our 480V 3-phase to 120V single-phase transformer was deployed inside the inverter room. While the PV inverters operated on three-phase power, the auxiliary components—such as monitoring panels, fire safety modules, and lighting—required clean 120V single-phase feeds. By isolating these low-voltage loads, the transformer eliminated the need for separate circuits and simplified site wiring.
Client feedback:
“This helped us keep the control panels independent without extra cabling—super useful in a tight installation window.”
Energy Storage Systems (ESS)
At a battery energy storage project in Austin, TX, EPC contractors used the transformer to power environmental monitoring units and local network equipment. Since the BESS core runs on high-voltage three-phase, stepping down to 120V was necessary for sensors and data loggers.
Real scenario:
Installed adjacent to the BESS switchgear, the dry-type transformer ensured zero interference and safe voltage for all auxiliary single-phase equipment.
Data Centers
In a mid-sized Tier III data center near Frankfurt, Germany, this transformer was integrated at the PDUs to supply 120V lighting and maintenance outlets throughout the server hall. It allowed the client to draw single-phase loads from the primary 480V infrastructure without disrupting balance.
Data center facilities manager said:
“We didn’t want separate single-phase supply in a three-phase layout. This solution kept everything centralized, easy to maintain.”
Hydrogen-from-Wind Projects
In a Northern Scotland pilot plant converting wind to hydrogen, the control system required 120V for the HMI panels, emergency lighting, and safety interlocks. The team chose our transformer for its insulation class and flexible enclosure options, installing it directly within the turbine base station.
Technical lead’s note:
“Standardizing on 480V feed simplified design—we just needed a reliable way to drop to 120V safely. Your unit did exactly that.”
Medical Facilities
In a hospital retrofit project in Toronto, our 480V to 120V single-phase transformer was mounted in the electrical closet to isolate supply for legacy lab equipment, some of which still ran on 120V input. Because the building had upgraded to a 480V three-phase backbone, the transformer was a cost-effective way to maintain equipment compatibility.
Facility engineer’s comment:
“It saved us from replacing five machines that still needed 120V—this was a smart workaround.”
- 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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Getting Voltage and Phase Right in Real-World Projects
When it comes to transformers, you’re not just converting voltage—you’re also adapting the system to your equipment. A 3 phase to single phase transformer is the right call when your site has 480V 3 phase service but only needs 120V or 240V single phase for outlets or small loads.
But what if you have single phase service and need to run three-phase motors? Then you’re looking at single phase to 3 phase converter transformers, possibly with step up from 240 to 480.
Popular search-driven combinations include:
- 480 3 phase to 120/240 single phase transformer
- 208 3 phase to 240 single phase
- 240 single phase to 208 3 phase transformer
- 220V single phase to 3 phase transformer
- 240V to 480V 3 phase step up transformer
We also provide support for setups like:
- 3 phase to single phase transformer wiring diagrams
- 3 phase transformer to single phase panel
- Using single phase transformers to create 3 phase systems
You need both the right voltage match and the correct phase conversion strategy. That’s why we ship with labeled terminals, clear schematics, and sizing tools for:
- 3 phase to single phase transformer calculator
- 3 phase to single phase conversion wiring
- Price comparisons and project quotes
Whether you’re upgrading a machine, powering a panel, or redesigning a facility, we help you get the phase right—one transformer at a time.
It steps down three-phase power—like 480V 3 phase or 208V 3 phase—to single-phase outputs such as 240V, 230V, or 120V for lighting, outlets, or control panels.
Not directly. A single phase to 3 phase transformer only adjusts voltage. To create three-phase power from a single-phase supply, you need a single phase to 3 phase converter or a phase converter transformer system.
It depends on your load. Choose 480 to 240 single phase for heavier equipment, and 480 to 120 single phase transformer for lighting or PLCs.
Yes. We provide step down transformer 480 to 240 3 phase, 460 to 230, 380V to 220V, and 208 to 120V combinations for industrial and light commercial applications.
They may be delta to single, wye to single, or use internal taps. We provide clear 3 phase to single phase wiring diagrams and support panel-ready options.
No. A 3 phase to single phase transformer cannot be reversed into a single phase to 3 phase step up transformer. You’ll need dedicated designs for each.
Yes. Using three single phase transformers in a delta or wye bank, you can simulate a 3 phase power system, but this requires precise balance and design.
Yes. We offer models like:
415V 3 phase to 230V single phase transformer
440V 3 phase to 220V single phase transformer
600V 3 phase to 240V and more