Auto Transformers

Osborne often recommends Auto Transformers in situations where reducing physical size of the transformer is advantageous. Auto transformers offer size advantages when compared to equivalent isolation transformers. Auto transformers provide lower levels of regulation than the equivalent isolation transformer. Osborne helps our clients accommodate for the loss of regulation while achieving the physical size (and cost) advantages of auto transformers.


Let’s talk about your project.


Contact Us

Auto Transformer Design Options Table

Spec Range Available
Primary Voltage: 1 – 10,000 Volts
Secondary Voltage: 0.1 – 20,000 Volts
Secondary Current: 0.001 – 50,000 Amps
Capacity: 0.000001 – 6,000 KVA
Frequency: 45 – 1,000,000 Hertz
Phase: Single – Multiple
Terminals: Wire Leads – Finger Safe
Enclosures: Open Core & Coil – Hazardous Environment
Dielectric Strength Testing: 50 Volts DC – 50,000 Volts AC
Agency Approvals: UL, CSA, CE and/or TUV

What Are Osborne’s Auto Transformer Design Options?

“Design Options” refers to the types of features typically available for Osborne’s Auto Transformers. We share these options to help you determine if Osborne’s capabilities are a good fit for your project.

If you’re looking to develop a custom auto transformer and it fits in the ranges of Osborne’s auto transformer design options table, there’s a great chance that we can make your project a success. Call Osborne today at 800-229-9410.

Why Choose Osborne?

Premium auto transformers are ideal for select applications. Does your project demand exceptional design service and high performance? If so, please consider our Design Options page for details about the performance benefits of application specific engineering. Next we encourage you to visit our Partners page for a clear idea of Osborne’s unique collaborative development approach.