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3-Phase 208V Delta - 240 D 120 (Step Up Transformer)

Size Guide SKU # MIT-DRY-229
NEW:  $1,975.00 IN STOCK CALL FOR LEAD-TIME 866-719-1882
USED: $1,975.00 IN STOCK
(${ savings }% savings!)

Delivers in 5-7 business days

This transformer is designed to convert 3-phase 208v to 3-phase 240 D 120 to run equipment such as panels, motors, CNC machines, welders, conveyor systems, pumps, printing equipment, fabrication tools, and other industrial machines.

Primary Voltage: 208 Delta

Secondary Voltage: 240 D 120 (Step Up Transformer)

This model comes with a center tap (AKA lighting tap) to run 1-phase 120v power off the secondary. The center tap can provide 5% of the total kVA rating without taking away from the overall capacity.

Transformer Specifications:

  • CSA and UL Approved
  • 60 Hz Frequency
  • 150°C Temperature Rise
  • Primary Adjustment Taps 2 above, 4 below in 2.5% increments
  • High Efficiency Aluminum Windings
  • 220°C Insulation Class
  • Vacuum pressure Impregnated Windings
  • NEMA 3R Outdoor/Indoor Enclosure
  • Energy Efficient

Exact size and shape to vary. Transformers ordered for indoor use may be provided with outdoor enclosure depending on stock. Transformer may appear different than pictured.

Need something different? Contact us for a custom quote: 600vsales@maddoxtransformer.com

Download instruction manual

Approximate Enclosure Dimensions & Weights:






Dims (HxWxD)










Shipping Rates
Shipping rates vary, but generally range between 5-10% of the total purchase price.

Shipping From
Transformers shipping from stock deliver within 3-5 business.  Maddox has 22 regional fulfillment centers so delivery is never a few days out!

Maddox Fulfillment Centers

Returns and Exchanges

Our policy lasts 30 days. If 30 days have gone by since your purchase, we unfortunately cannot offer you a refund or exchange. We still may be interested in buying the unit back. We require proof of purchase in order to process a return or exchange.


To be eligible...

Read more here: Shipping, Return and Refund Policy

5 Year Warranty

Buy with confidence. All new and used Maddox transformers are tested and come with a full 5 year warranty against defects. If you experience any problems just give us a call and receive a replacement, free of charge. We'll even pay the shipping!