This 3-phase autotransformer transformer converts voltage for industrial and commercial equipment. Available in 112.5, 15, 150, 3, 30+ kVA sizes with aluminum or copper windings. Ships in 35 business days with $180 flat rate shipping.

In Stock Ships in 3-5 Days $180 Flat Rate Shipping 5-Year Warranty Aluminum or Copper Windings Transformer Specifications

Common Applications

Multi-Voltage Equipment Import/Export Machinery Industrial Facilities Voltage Matching Adjustment Taps

Primary taps (2 above, 4 below at 2.5%) let you fine-tune output voltage for your specific equipment needs.

High Temperature Rating

220C insulation class with 150C temperature rise ensures reliable operation in demanding industrial environments.

Energy Efficient

Designed for maximum efficiency to reduce operating costs and heat generation in your facility.

5-Year Warranty

Full 5-year warranty against defects. If anything goes wrong, we replace it including shipping.

(800) 417-6568

Talk to a transformer specialist MonFri 7AM5PM MST

Phoenix Phase Converters supplies industrial-grade dry-type autotransformer transformers for commercial and industrial applications. Our 3-Phase Autotransformer 600-480-400-240-208v is available in multiple kVA sizes (112.5, 15, 150, 3, 30, 45, 6, 75, 9 kVA) with your choice of aluminum or copper windings. Every transformer ships from stock in 35 business days with $180 flat rate shipping anywhere in the continental USA. Backed by a full 5-year warranty.

Not sure which size you need? Call us at (800) 417-6568 and our team will help you select the right transformer for your application. We can also provide custom quotes for larger installations.

This three-phase autotransformer provides multi-tap voltage conversion between 600V, 480V, 400V, 240V, and 208V. One transformer, five voltage options connect to any tap and get the output voltage you need. Available from 3 KVA to 150 KVA, select your size from the dropdown above.

Made in USA UL Listed 5 Voltage Taps Ships from Stock Autotransformer Voltage Taps

What’s Included

• Three-Phase Autotransformer (multi-tap)
• 5 Voltage Taps: 600V / 480V / 400V / 240V / 208V
• NEMA Enclosure (indoor/outdoor rated)
• Terminal Connections & Documentation

Why an Autotransformer

Five Voltage Options

One transformer handles 600V, 480V, 400V, 240V, and 208V. Convert between any of these voltages by selecting the appropriate input and output taps.

More Efficient than Isolation

Autotransformers use a single winding with taps more efficient and less expensive than isolation transformers for voltage matching applications.

Continuous Duty

Built for industrial environments. Handles full load continuously without overheating or derating.

Compact Footprint

Autotransformers are physically smaller than equivalent isolation transformers saves valuable floor or wall space in your electrical room.

Common Applications

Voltage Matching Import Equipment (400V) Motor Starting Buck-Boost CNC Machines Industrial HVAC Manufacturing (800) 417-6568

Need help selecting the right KVA and tap configuration? Our engineers are here to help.

This three-phase autotransformer provides multi-tap voltage conversion between 600V, 480V, 400V, 240V, and 208V three-phase power. Autotransformers use a single winding with multiple taps, making them more efficient and cost-effective than isolation transformers for voltage matching. Connect your input to one tap and your output to another the transformer handles the conversion.

Available in 3 KVA through 150 KVA sizes to match your load requirements. Commonly used for powering imported 400V equipment from US 480V service, voltage matching between 208V and 240V systems, and stepping between 480V and 240V. Call (800) 417-6568 for sizing assistance.