Single Phase Transformer: 480V AC/240V AC, 240V AC/120V AC
Single Phase Transformer: 480V AC/240V AC, 240V AC/120V AC

Buying Used and Surplus Single Phase Electric Transformers

Electrical Supplies Unlimited buys and sells new and used Single Phase power & electrical Transformers and more for San Diego County and surrounding areas including Orange County, Riverside and more. Of course, we can arrange shipment on a wide variety of products to service those outside our area. We will also purchase your used Transformers.

A single phase transformer is a type of transformer which operates on single-phase power. 

Single-phase transformers are usually used for single special applications or voltages. For instance, equipment that specifically requires 240 volts single-phase where the service voltage is 120/208 volts. For an application like this, it is common to only provide a single-phase transformer for the equipment because there won’t be a different electrical loads served by it. 

Phase imbalances can occur when a single-phase transformer is used for general distribution while using a three-phase utility. If a property is served by single-phase and a transformer is used (e.g., for isolation) then a single-phase transformer would be appropriate.

The applications of a single-phase transformer are varied. Some uses:

To step-down long-distance signals to support both residential and light-commercial electronic devices.
To supply power to non-city areas.
To step-up power in home inverters.

It is most commonly used to increase (‘step up’) or decrease (‘step down’) voltage levels between circuits.

ESU Inc has been in the electrical supply business for over 40 years. We have a large inventory of new, surplus and recycled electrical supplies both for the commercial and residential markets.  We can offer the best pricing on your used and obsolete Electrical Transformers as our large client base allows us to give you the highest price possible. If you have surplus transformer equipment, give us a call and we will give you a quote. We will arrange for pickup and you get payment!

Are you an electrician or homeowner in search of reliable electrical supplies in San Diego County? Look no further than Electrical Supplies Unlimited (ESU). We specialize in catering to your needs by offering a comprehensive selection of new, surplus, and recycled electrical equipment, including single-phase electric transformers. At ESU, we understand the importance of quality and affordability, which is why we provide top-notch products at competitive prices. Whether you're undertaking a residential renovation or a commercial project, our extensive inventory ensures that you'll find the perfect electrical supplies to meet your requirements. Trust ESU for all your electrical needs and experience unparalleled service and quality.

Attention electricians and homeowners in San Diego County! Electrical Supplies Unlimited (ESU) is your go-to destination for a wide range of electrical supplies, including single-phase electric transformers. Our commitment to customer satisfaction is unparalleled, as we offer a seamless buying experience and competitive pricing on all our products. Whether you're looking to buy, sell, or stock electrical equipment, ESU has you covered with our diverse inventory of new, surplus, and recycled items. With our convenient location and dedication to quality, ESU is the trusted choice for electricians and homeowners alike. Visit us today and discover why ESU is the preferred electrical supplies company in San Diego County.

Our staff is very knowledgeable and our mission is to ensure that our customers expectations are exceeded. Ask around, our reputation is what makes us! Or just call to find out yourself at 858.558.2850.

We purchase most major brands including Acme, Westinghouse, Cutler Hammer, ITE Siemens, FPE  Federal Pacific, Square D, General Electric and Zinsco products. We are a fully stocked Electrical Distributor and Electrical Wholesaler with many different lines in stock.

We are power transformer and electrical hardware experts. Do not hesitate to call us at 858.558.2850 to find out how ESU can help you with your excess Transformer needs.

Your one stop go-to guys. Always at your service!


Surplus Electrical Power Transformer Buyers
Surplus Electrical Power Transformers