15kva 3 phase control transformer
Power your control systems with consistency—and the headroom you actually need.
This isn’t your typical 100VA panel transformer. When you’re running multiple relays, servo drives, or PLC nodes from a single point, 15kVA gives you the margin to do it right. It’s designed for centralized control cabinets, automation skids, and machine power bays—especially when uptime matters.
We ship these units fully labeled, UL-listed, and ready to deploy across every build. For OEMs, integrators, and contractors who want one spec across twenty sites—you don’t have to rewire your layout, just reorder the same part number.
Solar Project: Rooftop PV Integration | Location: Fresno, California, USA
A commercial PV contractor needed to integrate 240V 3-phase inverter output into an existing 480V service panel across six big-box retail sites. Our 200kVA step-up transformers were installed between combiner boxes and switchboards.
“We used the same setup on every site. No layout changes, no surprises—just plug and align.”
Energy Storage Project: Grid-Connected BESS Skids | Location: Ontario, Canada
A BESS integrator was building mobile container systems using 240V PCS output. Their grid tie-in required 480V. Each 20-ft skid embedded a 200kVA step-up transformer mounted next to the battery inverter.
“It fits into our prefab workflow. We’ve shipped 40+ units with identical wiring and specs.”
Data Center Project: Edge Computing Nodes | Location: Dublin, Ireland
A European data integrator deployed edge pods across Ireland, powered by 240V 3-phase service. But the UPS and in-row cooling units required 480V. Our transformers were rack-adjacent, inside power bays.
“We didn’t modify any cabinets—just dropped in the same 200kVA unit each time.”
Wind & Hydrogen Project: Skid-Mounted Hydrogen Test Units | Location: Colorado, USA
A hydrogen tech firm used 240V from small wind turbines to power their trailer-based electrolysis systems. Control circuits and pumps required 480V. Our floor-mounted step-up units were placed at the skid’s power intake.
“They stayed stable even with variable wind. Repeatable, reliable—we just kept ordering more.”
Medical Project: Lab Modernization Program | Location: Bavaria, Germany
A facilities contractor was upgrading diagnostic labs with new analyzers and sterilizers that needed 480V. However, the utility feed was 240V 3-phase. Our wall-mounted 200kVA units sat between main breakers and load cabinets in each facility.
“We standardized across 18 sites. The inspector signed off fast because everything matched.”
- 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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| 200kva 1 phase buck boost step up transformer | 167 kva 3 phase step up transformer 240 to 480 |
| 150 kva 480 3 phase to 120 single phase transformer | 100 kva 480v to 220v 3 phase transformer |
| 100 kva step up transformer 220 to 440 3 phase | 167 kva 3 phase step down transformer 240 to 208 |
| 167 kva 3 phase step up transformer 208 to 480 | 150 kva 3 phase transformers for sale |
| 100 kva step up transformer 220 to 440 3 phase | 100 kva step down transformer 480 to 240 3 phase |
Why Control Transformers Matter More Than You Think
In most control panels, the transformer is an afterthought—until something fails. Choosing the right industrial control transformer isn’t just about matching voltage. It’s about matching reliability.
You want a unit that withstands inrush. One that’s easy to fuse, easy to wire, and ready to replicate across 30 cabinets. Whether you’re installing a 480V to 120V control transformer in an HVAC system or a 3kVA model inside a machine tool control panel, you’re counting on consistency.
That’s why our customers—system integrators, panel builders, and OEMs—ask for standardized control transformers with pre-approved wiring diagrams, NEC-compliant fuse sizing, and fast shipping. We’ve seen it all: from mars 40VA control transformers in rooftop units to 1000VA enclosed models in dairy plants.
So next time you order one, ask yourself: “Will this hold up across every install, every technician, every spec?” If not—try Shinenergy.
Most 3-phase control transformers are not backward compatible. If you’re running single-phase control loads, use a single-phase unit like a 240V to 120V 1kVA transformer or 208V to 120V 500VA unit instead.
Check for short circuits, undersized transformers, or improper grounding. Use an amperage chart to match your control transformer’s VA rating with proper fuse size, and ensure the secondary side is grounded as per NEC.
Yes—especially in dusty, damp, or outdoor environments. Our enclosed control transformers, including 500VA and 750VA models, are built for UL/CSA compliance and meet IP-rated protection.
Multi-tap models support multiple input voltages (like 208V/240V/480V), making them ideal for equipment exported to multiple countries or used across variable site specs.
A control transformer is used to power control circuits—think of it as the bridge between your high-voltage power system and sensitive low-voltage logic. It steps down 480V or 240V to safer levels like 120V, 24V, or 12V for contactors, timers, sensors, and PLCs.
While a power transformer is built for high loads and continuous transmission, a control transformer is optimized for short inrush currents and voltage stability in control logic. It delivers peak performance during brief loads like contactor energizing or relay activation.
Use the total VA load of all control devices and multiply by a safety factor (usually 125%). You can use our control transformer sizing calculator or consult our fuse sizing chart to ensure optimal fuse and conductor selection.