Learn About Underground Electric Supply

Reliable Power Solutions with Expert Support Since 1967

About Us

For over 40 years Underground Electric Supply has been a stocking distributor for medium and high voltage material used to build and maintain power generation, distribution, and transmission electrical projects, 480 volts thru 500kV. We stock heat shrink and cold shrink terminations and splices, liquid and dry type transformers, circuit breakers, fuses, load interrupter switches, Burndy lugs and connectors; 3M tape products, as well as cable guards.

Our goal is to always provide customers with a full range of products and solutions that keep their business running in top form, provide continuous uninterruptible power, and help them stay ahead of the competition.

Fast Shipping & 24/7 Support

On time delivery, a passion for precision, world class technical support, and a can-do attitude is what our customers have come to expect from Underground Electric Supply. We strive for excellence and take pride in the services we offer.

At Underground Electric Supply we understand what “now” means, and with our on-hand stock we offer 24 hour emergency services to provide the supplies you need to bring your facility back online.

Call us day or night for all your electrical product needs. Proudly serving the world from our original 10,000 square foot warehouse in Southern California

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FAQ

What types of electrical products do you carry?

We carry a wide range of high and medium voltage electric supplies including:

Medium & High Voltage Termination Kits
Medium & High Voltage Splice Kits
Power Cable Accessories
Cable Connectors
Medium & High Voltage Fuses
Oil Cutout Accessories
Splicing Materials

If you are looking for a part that is not on our website, please reach out to us at info@undergroundelectricsupply.com or give us a call at (909) 628-4763.

I have an emergency. How fast can you ship products?

We can ship overnight anywhere in the continental US on all orders placed before 8pm EST.

Call us at (909) 628-4763 so we can get your order placed.

I don't see the part I'm looking for. Can you help?

We can order whatever you need, even if you don't see it on our site. Please reach out for assistance at info@undergroundelectricsupply.com or call us at (909) 628-4763.