For Superior Design, Competitive Pricing And Reliable Service, Contact "The Transformer Specialists" At SNC.

Since 1946, SNC Manufacturing Has Taken Pride In Our Ability To Produce Transformers And Magnetics In Virtually Any Size, Configuration Or Quantity.


  • Three-Phase Auto Transformer
    Three-Phase Auto Transformer
  • Three-Phase Auto Transformer Assembly
    Three-Phase Auto Transformer Assembly

Often used in step-up or step-down applications, SNC Autotransformers contain only one winding with a portion of the coil serving as both the primary and secondary winding. Different voltages may be obtained by connecting at different points along the winding. Available in Three-Phase and Single-Phase models, SNC Autotransformers are typically used in low voltage situations (600 volts or less) and provide a relatively smaller, lightweight size due to the sharing of the single coil; better voltage stability and greater overload tolerance.

At SNC Manufacturing, we can custom design Autotransformers to meet your exact requirements regarding primary and secondary voltages, power ratings, line frequency, agency approvals, etc. To learn more about how our custom designed Autotransformers can benefit your company’s production process, contact SNC.

SNC MFG Transformer Dr.

At SNC, our friendly customer service reps are standing by - so feel free to contact us for additional information - or you can download the "Welcome To SNC Manufacturing Co." PowerPoint for an up close and personal look at SNC's products, facilities, services, etc.

Welcome to SNC

If you'd like to find out how SNC Transformers stack up to your current vendor, simply complete our brief RFQ Form for a quick, competitive response.


On behalf of everyone at SNC Manufacturing Co., thank you for visiting our website. We look forward to working with you soon.