Maddox Industrial Transformer
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MOTOR STARTING AUTOTRANSFORMERS

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​​Product Scope
  • 25 to 1600 HP
  • 240, 480 , 600, 2400, 4160 volts
  • 2 and 3 Coil
  • Many units in stock
  • ​Rewind your old unit

​We stock, rewind, and build custom three phase 2-coil and 3-coil autotransformers. Commonly used to protect against over voltage and under voltage in motor starting applications. 

2-Coil designs are for motor starters with 2 contacts in an open delta configuration. Phase voltages across the open delta will be slightly out of balance with the other two phases using a 2-coil autotransformer.

3-Coil autotransformers are for motor starter with 3 contact connected in a three phase wye configuration. The 3 coils provide balanced voltages across phase.

    Get Pricing!

Get Pricing!
Maddox Industrial Transformer, LLC.

East Coast: 865 Victor Hill Road, Greer, SC 29651
West Coast: 1601 SE Commerce Ave, Battle Ground, WA 98604 


800-270-2011 - 
sales@maddoxtransformer.com

© 2022  MADDOX INDUSTRIAL TRANSFORMER, LLC.

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  • About
  • CAREERS
  • SELL SURPLUS
  • SUPPORT
    • NEWS
    • GLOSSARY
    • MANUALS
    • T&C & WARRANTY
    • RETURN REQUEST
    • CREDIT APPLICATION
  • CONTACT US
  • ONLINE STORE
  • PRODUCTS
    • Padmount Transformers
    • Dry Type Transformers
    • Substation Transformers
    • Rental Transformers
    • Motor Starting Autotransformers
    • Transformer Repair