Best 15 KVA Step Up Transformer Options for Industrial Power
The following 15 kVA transformers cover single-phase and three-phase configurations for industrial loads. Each product converts voltages between common North American and international standards, prioritizing efficiency, rugged build, and reliable isolation. Use these options to power CNC machines, HVAC controls, manufacturing lines, and heavy equipment with stable voltage transformation.
Summary Of Selected Products
| Product | Brand | Key Strength |
|---|---|---|
| GoHz 15 kVA Single Phase (120V to 240V) | GoHz | Wide primary options and dry-type efficiency |
| GoHz 15 kVA Single Phase (110V to 240V) | GoHz | Industrial-grade isolation with copper winding |
| GoHz 15 kVA Single Phase (110V/120V to 208V) | GoHz | Flexible secondary voltages for equipment |
| GoHz 15 kVA 3 Phase (120V–480V to 100V) | GoHz | IP54 dry-type for industrial use |
| GoHz 15 kVA 3 Phase (120V–480V to 230V) | GoHz | High-efficiency 3-phase isolation |
GoHz 15 kVA Single Phase: 120V To 240V

The GoHz 15 kVA single-phase isolation transformer provides a robust copper-winding design for step-up or step-down needs. Primary voltages include 208 V AC with optional selections at 110/120/220/230/240 V, while the secondary offers 240 V AC with similar options. This unit emphasizes high efficiency and stable output to protect downstream equipment, making it suitable for industrial loads requiring consistent voltage transformation. Its dry-type construction uses an IP20 enclosure and a silicon-steel core for reliability in indoor settings.
GoHz 15 kVA Single Phase: 110V To 240V

Designed for industrial loads, this 15 kVA unit maintains high-efficiency voltage transformation with copper winding and a 15 kVA isolation rating. It supports various primary voltages including 208 V AC and optional 110/120/220/230/240 V, with a secondary at 240 V AC and optional 110/120/208/220/230 V. The transformer’s IP20 enclosure and copper winding help minimize energy loss and deliver stable output for sensitive equipment in factory environments.
GoHz 15 kVA Single Phase: 110V/120V To 208V

This single-phase transformer focuses on delivering a dependable 15 kVA capacity with copper windings and an IP20-rated dry-type body. The device supports a spectrum of input voltages (208 V with optional 110/120/220/230/240 V) and a 240 V secondary with several alternatives. It is engineered for low noise operation in indoor industrial settings and to deliver minimal energy loss for extended equipment life.
GoHz 15 kVA 3 Phase: 120V–480V To 100V

This three-phase isolation transformer provides 15 kVA capacity with copper windings and IP54 protection. It supports primary voltages within 120–480 V and delivers a 100 V secondary to power 3-phase equipment with consistent performance. Built for industrial environments, it uses Dyn11 wiring and a low-loss silicon steel core to maintain efficiency and reliability across demanding applications.
GoHz 15 kVA 3 Phase: 120V–480V To 230V

This 3-phase transformer handles higher-voltage input ranges with a 15 kVA rating and copper windings. It provides a stable 230 V secondary and is designed for industrial automation lines, CNC machinery, and HVAC systems. The unit features IP54 protection, dry-type cooling, an H-class insulation system, and a high-efficiency silicon-steel core to sustain long-term reliability in harsh environments.
GoHz 15 kVA 3 Phase: 120V–480V To 230V (460V To 230V)

This three-phase transformer provides 15 kVA isolation with copper windings and IP54 protection. It is appropriate for stepped-down conversions from higher three-phase voltages to 230 V for manufacturing equipment or CNC drives. Dyn11 wiring and dry-type cooling support efficient operation with reduced noise in industrial facilities.
Buyers Guide: Key Considerations For 15 kVA Transformers
Configuration And Voltage Range
Choose between single-phase and three-phase models based on your layout and the connected load. Verify primary voltage ranges (for example, 120–480 V) and secondary outputs (such as 100–230 V) to ensure compatibility with your equipment and power distribution panels.
Isolation And Safety
Isolation transformers help protect sensitive equipment from line disturbances. Look for units with copper windings for low resistance and IP ratings that match your environment (IP54 for dust and splash resistance in harsher spaces).
Efficiency And Cooling
Dry-type transformers with silicon-steel cores are common for indoor use. Higher efficiency reduces energy loss and heat. Consider forced-air cooling for continuous operation in high-load scenarios, especially in industrial facilities with limited ventilation.
Durability And Enclosure
Industrial-grade enclosures (IP20 for indoor use, IP54 for more demanding sites) help guard against dust and minor moisture. A rugged enclosure and robust wiring minimize maintenance needs in busy facilities.
Voltage Regulation And Output Stability
Stable secondary voltage is critical for precision equipment. Look for transformers designed for low-noise operation and minimal voltage drift under load transients to protect downstream devices from surges or dips.
Installation And Footprint
Assess space requirements and mounting options. Some units offer compact footprints for crowded electrical rooms, while others emphasize ease of service with accessible terminals and cooling paths.
Warranty And Support
Check manufacturer warranties, technical support, and availability of spare parts. For industrial deployments, long-term serviceability can impact total cost of ownership and downtime risk.