Maddox stocks, and remanufactures thousands of low and medium-voltage transformers every year for the country’s largest energy consumers. From data centers and renewables, to commercial and industrial projects—Maddox powers all segments of American industry with reliable transformers, built fast and delivered hassle-free.
Secure the right transformer for your next commercial or industrial project, backed by expert technical support and fast customer service.
Access speed, scale, and support to power your mission critical sites fast and reliably across North America.
Find quality padmounts and dry types designed for solar applications where harmonic mitigation, e-shields, and step-up functionality are required.
Win more bids with faster lead times, better pricing, and same day quotes from a team of transformer experts.
Get your project on line fast and reliably with transformers backed by the industry leading three year warranty.
Spec transformers to meet your project’s precise needs by leveraging Maddox’s extensive customization capabilities.
Keep your operation running with no delays by finding the transformers you need in-stock at on of Maddox’s many warehouses.
Find transformers built with your non-negotiable features, like bi-directional designs, dual voltages, ANSI 4 low voltage bushings.
When Axium Solar needed transformers for their 8.5 MW solar project in Arkansas, they turned to Maddox for speed, quality, and dependability.
DC BLOX provides the infrastructure and connectivity essential to today’s digital business. Maddox provides the transformers essential to powering their facilities.
US Digital needed to hook up machines that didn’t take 480v. Maddox has the transformers that could get those machines powered on.
City Electric Supply needed reliable padmount transformers delivered fast for a project with tight deadlines. Maddox was able to design, manufacture, and ship the units faster than anyone in the industry.
When H&W Electrical needs padmount transformers to power their most important industrial projects, they turn to Maddox for fast deliveries and responsive customer service.
Discover how SCATE Ventures used Maddox transformers to power on their bitcoin mining operations.
I have never had a bad experience when working with Maddox as their quotes come quickly and if changes are needed, they turn around just as fast. It truly feels like you are their main customer at all times.
Jordan was fabulous and got me going with what I needed immediately, configuration, pricing, shipping and delivery were all great. Tech support was excellent giving me answers to the couple of important wiring/connection info I needed. I’ll be a customer again.
It’s rare to find a team that combines professionalism with such a human touch. Their responsiveness made all the difference; I never felt like I was waiting or out of the loop. It felt more like a partnership than just a service.
Click the button below to read more reviews. Or put our service and stock to the test yourself. We know you won’t be disappointed.