About Electrical Supplies Unlimited (ESU)

Electrical Supplies Unlimited (ESU, Inc.) has been serving the electrical supply industry for more than 40 years. Located in San Diego, California, ESU buys and sells a large variety of new, used, surplus and recycled electrical supplies for commercial, industrial and residential applications. We specialize in obsolete and hard-to-find electrical equipment, helping electricians, contractors, businesses and facility managers locate components that may no longer be readily available through traditional distribution channels.

Our experienced staff understands the challenges of finding the right electrical equipment for a particular application. Our mission is to provide knowledgeable assistance, dependable service and practical sourcing solutions while working to exceed our customers' expectations.

ESU serves customers throughout San Diego, Orange County, Riverside, Los Angeles and beyond. In addition to serving local electrical contractors and businesses, we arrange nationwide shipping for customers looking for specialized and hard-to-find electrical supplies.

Electrical Supplies and Equipment We Buy and Sell

ESU buys and sells a wide variety of electrical distribution, power, control and circuit protection equipment. Our products serve electricians, electrical contractors, commercial properties, industrial facilities and businesses that need replacement components or want to sell surplus electrical inventory.

Power Transformers

ESU buys and sells new, used and surplus electrical power transformers for a variety of commercial and industrial applications. Our transformer offerings include single-phase and three-phase units, dry-type transformers, low-voltage transformers, buck-boost transformers and other power distribution equipment. We also purchase surplus and used transformers from businesses and facilities. If you have excess transformer inventory, ESU can help evaluate the equipment and discuss a purchase.

Circuit Breakers

Circuit breakers are one of ESU's core product categories. We buy and sell new, used, surplus, obsolete and hard-to-find circuit breakers for residential, commercial and industrial electrical systems. Our sourcing experience includes equipment from manufacturers such as Eaton, Cutler-Hammer, Siemens, ITE, Square D, General Electric, Federal Pacific, Zinsco and Challenger. Whether you need a replacement breaker for an existing installation or have surplus breakers to sell, our team can help identify and locate the equipment.

Electrical Panels, Panelboards and Switchboards

ESU buys and sells electrical panelboards and panel equipment, including new, used, surplus and hard-to-find products. We also handle panelboard switches, outdoor panelboards and switchboards and switchgear. These products support electrical distribution in commercial buildings, industrial facilities and other installations. We can help customers source replacement equipment and purchase surplus electrical panels and components.

Fuses and Circuit Protection Equipment

We buy and sell a variety of electrical fuses and circuit protection products. This includes different fuse classes, amperage ratings and specialty fuse types for commercial and industrial applications. ESU also handles related equipment such as circuit breakers and other electrical distribution components. If you are looking for a specific fuse, providing the manufacturer, class, voltage and amperage information helps us identify the correct product.

Safety Switches and Electrical Disconnects

ESU buys and sells electrical safety switches and disconnect switches for commercial and industrial electrical systems. These products are used to isolate electrical equipment and provide switching functions for machinery, motors, HVAC systems and other applications. We help customers locate new, used, surplus and discontinued equipment depending on availability.

Motor Controls and Motor Starters

Our electrical equipment categories also include motor controls and motor controllers, along with motor starters and related industrial control components. These products are used to operate, start, stop and protect electric motors in manufacturing facilities, commercial buildings and industrial machinery. ESU can help source specific components and hard-to-find motor control equipment.

Electrical Test Equipment and Other Supplies

ESU also handles additional electrical products, including multimeters, electrical test equipment and pin and sleeve connectors. Our product categories extend beyond the items listed here, so contact us if you are searching for a particular electrical component or have surplus equipment available for sale.

Specializing in New, Used, Surplus and Obsolete Electrical Equipment

One of the things that distinguishes ESU is our experience with surplus and obsolete electrical supplies. Electrical systems can remain in service for many years, and finding replacement components for older equipment can become difficult when manufacturers discontinue products or standard distribution channels no longer carry them.

ESU works to help customers locate these hard-to-find components while also providing an outlet for businesses with excess electrical inventory. We buy surplus electrical equipment from contractors, electricians, businesses and industrial facilities. We also sell new and surplus products and help customers source used and discontinued equipment when available.

If your company has unused electrical supplies, excess inventory or equipment removed during an upgrade or renovation, visit our Sell to ESU page to learn more about selling surplus electrical equipment.

Serving San Diego and Shipping Electrical Supplies Nationwide

ESU is located at 6767 Nancy Ridge Drive, San Diego, CA 92121. We serve electricians, electrical contractors, commercial businesses and industrial customers throughout San Diego County, Orange County, Riverside County and the greater Southern California region.

For customers outside Southern California, ESU can arrange shipping on a wide variety of electrical products. Our nationwide sourcing and shipping capabilities allow us to work with customers looking for specialized electrical supplies, replacement components and obsolete equipment from across the United States.

Contact Electrical Supplies Unlimited

Whether you are looking to purchase electrical supplies, locate an obsolete component or sell surplus equipment, Electrical Supplies Unlimited is ready to help. Our staff brings more than four decades of electrical supply industry experience to every customer inquiry.

Call 858-558-2850 to speak with our team or visit us at 6767 Nancy Ridge Drive in San Diego, California. We look forward to helping you with your electrical equipment needs.