Ordered the wrong unit, or not sure if a product is right for you? Our free exchange policy has you covered! We’ll cover freight both ways and send you a replacement free of charge.

3-Phase Autotransformer 600-480-400-240-208v

Size Guide SKU # MIT-AUT-110-2
$1,975.00 IN STOCK CALL FOR LEAD-TIME 866-719-1882

Delivers in 5-7 business days

Voltages: 600-480-400-240-208v

This autotransformer is designed to convert any 2 of the voltages listed above in order to run equipment such as solar panels, motors, CNC machines, welders, conveyor systems, pumps, printing equipment, fabrication tools, datacenter equipment, and other business machines.

Is an autotransformer right for your application? Read more about autotransformers here.

Standard Features:

  • CSA and UL Approved
  • 60 Hz Frequency
  • 150°C Temperature Rise
  • Copper Windings
  • 220°C Insulation Class
  • Vacuum pressure Impregnated Windings
  • NEMA 3R Outdoor/Indoor Enclosure
  • Wall Mountable up to 75kVA
  • Mechanical lugs included up to 75kVA

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

    Download instruction manual

    Possible applications:

    600v input
    600 step down to 480
    600 step down to 400
    600 step down to 240
    600 step down to 208
    480v input
    480 step down to 400
    480 step down to 240
    480 step down to 208
    480 step up to 600
    400v input
    400 step down to 240
    400 step down to 208
    400 step up to 480
    400 step up to 600
    240v input
    240 step down to 208
    240 step up to 480
    240 step up to 400
    240 step up to 600
    208 input
    208 step up to 240
    208 step up to 480
    208 step up to 400
    208 step up to 600

    Approximate Enclosure Dimensions & Weights:

    Dims (HxWxD)
    Weight (Lbs)

    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!