The Cutting Edge of Transformer & Switchgear Technology

More Than a Manufacturer

Manufacturing Excellence With Quality At It's Best!

JST is a customer-focused, solutions innovator on the forefront of transformer and medium voltage switchgear technology.

Each year we make substantial investments in the research and development of new products and manufacturing techniques, and we continually strive to improve our products with higher efficiencies and lower costs.

We pride ourselves in our ability to move quickly as we work in collaboration with our customers to find solutions to their specific challenges.


Sheet Manufacturing

Our facility is vertically integrated, ensuring product quality while reducing lead time. Sheet metal capabilities include punching, forming, bending and powder coating in ANSI 61 color that lasts up to 1000 hours of salt spray. In-house design and manufacturing enable custom solutions for your project needs.

Breaker Manufacturing

At JST, we manufacture and test our circuit breakers fully in house. Magnetic actuators are designed, assembled, and tested by our team. Manufacturing our breakers and switchgear frames in the same facility allows for streamlined breaker and final production testing.

The Only Place Where You’ll Get The Perfect Solution For All Your Switchgear & Transformer Needs.

Dry Type Transformers


Our Products

JST Power is a premier supplier of Medium voltage transformers around the world. JST also offers VPI transformers and medium voltage switchgear products all manufactured to the same high-quality standards our customers have come to expect.

Medium Voltage Switchgear


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