Overview

3-Phase 480V Delta to 240V Delta

This industrial-grade transformer is engineered to convert 3-phase 480V to 3-phase 240V, making it ideal for powering equipment such as:

• Panels and control systems
• Motors and CNC machines
• Welders, conveyor systems, and pumps
• Printing and fabrication equipment
• Cryptocurrency miners and data center infrastructure
• Other commercial and industrial machinery

Electrical Specifications

• Primary Voltage: 480V Delta
• Secondary Voltage: 240V Delta / 120V (via center tap)

This model features a center tap (also known as a lighting tap) that provides single-phase 120V power from the secondary side. The 120V output supports up to 5% of the transformer’s total kVA rating without affecting its overall capacity.

Reverse Feeding Capability

This transformer can also be reverse-fed to step up from 240V to 480V. However:

• Adjustment taps will not function in reverse-feed applications
• Inrush current will be higher than with a purpose-built step-up transformer

Learn more about reverse feeding in our technical guide.

Transformer Specifications

• Frequency: 60 Hz
• Temperature Rise: 150C
• Primary Taps: 2 above and 4 below in 2.5% increments
• High-efficiency aluminum windings
• Insulation Class: 220C
• Vacuum Pressure Impregnated (VPI) windings
• DOE 2016 Energy Efficient compliant
• Appearance may vary slightly from product images