Best 3 Phase Step Up Transformers From 208V to 480V for Industrial Power
This article reviews top 3 phase step up transformers that convert 208V to higher voltages, focusing on reliability, efficiency, and safety features. Each selected model supports industrial or commercial equipment requiring stable three-phase power, with attention to copper windings, dry-type construction, and protective insulation. The listed options cover a range of capacities to suit different loads and environments.
| Product | Brand | Primary Voltage | Secondary Voltage | Power |
|---|---|---|---|---|
| 3 Phase Delta Buck/Boost Step-Up Transformer | Larson Electronics | 208V | 230V | 20.83 / 31.25 / 62.5 Amps |
| Dry Type Transformer 3 Phase 480V to 380V | TLmathus | 480V | 380V | 10 kVA |
| 15kVA Isolation Transformer 480V to 208V | GoHz | 480V | 208V | 15 kVA |
| 3 Phase Delta Buck/Boost Step-Up Transformer | Larson Electronics | 208V | 230V | 20.83 / 46.0 / 83.33 Amps |
| GoHz 6 kVA 3 Phase Isolation Transformer | GoHz | 208V Input (typical) | 480V | 6 kVA |
The following sections highlight each product, presenting a concise snapshot of its capabilities and where it fits in a 208V to 480V transformation scenario. Each entry includes a direct link to the Amazon listing and an image for quick reference.
Larson Electronics 3 Phase Delta Buck/Boost Step-Up Transformer
This 3-phase transformer is designed for delta buck/boost applications with a 208V primary and 230V secondary. Offering options for 20.83, 31.25, or 62.5 amps, it suits medium-load industrial setups. The model emphasizes custom options and safety, noting that returns are not accepted after factory shipment and that units must be responsibly managed to ensure safe use. The product highlights practical step-up capabilities for tight voltage ranges in demanding environments.
TLmathus Dry Type Transformer 3 Phase 480V to 380V
This dry-type isolation transformer provides three-phase conversion from 480V input to 380V output, rated at 10 kVA. Copper windings support efficient conductivity and heat dissipation for sustained operation. The unit features dual functionality for step-up and step-down needs and includes an output voltage meter and wheels for mobility. It is suitable for facilities requiring reliable voltage adjustment with a compact footprint.
GoHz 15kVA Isolation Transformer 480V to 208V
This 15 kVA three-phase isolation transformer converts 480V to 208V with three-phase to three-phase voltage transformation. It emphasizes high efficiency, copper winding, and robust insulation with Dyn11 wiring, supporting versatile industrial applications. The unit is described as suitable for demanding environments, offering reliable isolation and voltage conversion with broad application potential in manufacturing and processing facilities.
Larson Electronics 3 Phase Delta Buck/Boost Step-Up Transformer
This delta buck/boost transformer mirrors the 208V to 230V stepping capacity with alternative current-tap options, enabling flexible load adaptation. The product notes safety considerations and the absence of return options after factory shipment, alongside a policy ensuring safe use through proper destruction of units when necessary. It targets applications needing reliable phase-shifting and voltage alignment in compact footprints.
Larson Electronics 3-Phase Delta Buck/Boost Step-Up Transformer
This listing offers a 208V primary to 230V secondary three-phase step-up option with 20.83, 83.33, or 125 amp configurations. It is positioned for heavy-duty industrial scenarios, with emphasis on custom options and safety policies surrounding transformer usage and disposal after shipping. The transformer is appropriate for facilities needing precise voltage alignment between three-phase systems.
GoHz 6 kVA 3 Phase Isolation Transformer (208V to 480V)
This 6 kVA three-phase isolation transformer supports step-up or step-down between 208V and 480V, with copper windings and a dry-type cooling design. It emphasizes stable performance in industrial settings and uses Dyn11 wiring to optimize efficiency, with a focus on durable construction and noise reduction. It is well-suited for CNC machinery, HVAC, and automation lines requiring reliable phase-to-phase voltage control.
GoHz 4 kVA 3 Phase Isolation Transformer
This 4 kVA three-phase isolation transformer provides three-phase voltage transformation with copper windings. It is designed for stable step-up/step-down operation in commercial environments, featuring dry-type cooling, H-class insulation, and a robust core to support consistent performance in tough conditions. The unit is suitable for facilities needing compact, efficient phase conversion.
Buying Guide
Key purchase considerations when selecting a 3-phase transformer for 208V to 480V applications include capacity (kVA), primary and secondary voltages, and phase configuration. For reliability, prioritize dry-type insulation, copper windings, and an efficient core design to minimize energy losses. The conversion direction (step-up vs. step-down) should align with equipment requirements and safety standards.
- Capacity and load compatibility: Choose a transformer with sufficient kVA to handle peak loads without overheating.
- Voltage accuracy and regulation: Look for tight voltage regulation to protect sensitive equipment from dips or surges.
- Winding and insulation: Copper windings and H-class insulation improve durability and heat tolerance in industrial environments.
- Cooling method: Dry-type cooling is common in industrial settings; ensure adequate ventilation and enclosure ratings.
- Mounting and form factor: Consider mobility (casters or wheels) and space constraints in the installation area.
- Safety and compliance: Verify certifications and a clear policy on handling, disposal, and returns to ensure safe operation.
- Maintenance and serviceability: Check for available spare parts, ease of inspection, and warranty terms.
In multi-vendor scenarios, compare units based on efficiency (≥95% is common for quality copper-wound transformers), noise characteristics, and insulation class. For critical loads, prioritize units with robust isolation features to minimize electrical noise and cross-talk between systems. Always consult with a licensed electrical professional to ensure compatibility with your specific distribution system and local electrical codes.