ESU carries a wide stock of Siemens Circuit Breakers for ITE Breaker replacements. We have everything from a single pole 15A 120/240 through 3 pole 3000 Amp 600V in the Siemens ITE line. Siemens makes new circuit breakers that can replace the old ITE breakers. The new Siemens breakers will either have the same ITE part number, or its own Siemens part number.

Siemens Corporation is a U.S. subsidiary of Siemens AG, a global powerhouse in electronics and electrical engineering, operating in the industry, energy, healthcare, and infrastructure & cities sectors. For more than 165 years, Siemens has built a reputation for leading-edge innovation and the quality of its products, services and solutions.

Siemens and ITE Circuit Breakers

In 1983 Siemens bought ITE (formerly known as Gould), a large electrical distribution company, so if you're looking to replace an ITE product, chances are you'll find exactly what you need from Siemens.  

Despite the fact they're now, technically, Siemens breakers, many loyal customers still refer to them by the ITE name.

Are you an electrician or homeowner searching for a reliable source of electrical supplies, specifically ITE breakers? Look no further than Electrical Supplies Unlimited (ESU). As a trusted provider, ESU specializes in buying, selling, and stocking a diverse range of electrical components, including Siemens Circuit Breakers ideal for ITE breaker replacements. With a wide inventory of new, surplus, and recycled items, ESU ensures that both professionals and homeowners have access to high-quality products at competitive prices. Whether you're upgrading your home's electrical system or completing a commercial project, trust ESU to provide the ITE breakers you need for reliable performance and safety. 

People also ask
Are ITE and Siemens breakers the same?

 Despite the fact they're now, technically, Siemens breakers, many loyal customers still refer to them by the ITE name

HVAC Fuses and HVAC Breakers in San Diego from ESU

At ESU Inc., we supply essential components for every project, including HVAC fuses and HVAC breakers. HVAC fuses are designed to protect heating and cooling systems by breaking the circuit if the current becomes too strong, helping prevent costly equipment damage. HVAC breakers serve a similar purpose but can be reset after tripping, providing reliable protection against electrical overloads. Whether you need standard replacements or specific models, we carry a wide selection to keep your HVAC systems running safely and efficiently.

Our inventory features most of the major brands trusted in the industry, including General Electric, Hammond Power, ITE Siemens, Cutler Hammer, Square D, FPE Federal Pacific, Pushmatic, Zinsco, Crouse Hinds, Challenger, Westinghouse, Sylvania, and Bryant. With this broad range of options and our decades of expertise, ESU Inc. is the go-to source for electrical supplies that keep your projects powered, your HVAC systems protected, and your business or home running smoothly. For more than 40 years, ESU Inc. has proudly served as a trusted name in the electrical supply industry. We carry a vast inventory of new, surplus, and recycled electrical supplies to support both commercial and residential markets. As a fully stocked Electrical Distributor and Electrical Wholesaler, we offer an extensive range of product lines and specialize in those hard-to-find items that other suppliers can’t always provide. Our knowledgeable staff is dedicated to ensuring every customer’s expectations are exceeded. Ask around—our reputation speaks for itself, or simply give us a call at 858.558.2850 and experience the ESU difference firsthand.

ESU Inc. has been a trusted electrical supply distributor for over 40 years, serving both residential and commercial markets in San Diego and surrounding areas including Miramar, Golden Triangle, Chula Vista, National City, Otay, University Height and all others in San Diego County. We carry a wide selection of new, surplus, and recycled electrical supplies, specializing in hard-to-find items.

We stock essential components like HVAC fuses—which protect heating and cooling systems by stopping overloads—and HVAC breakers, which trip and reset to keep your equipment safe. With a large inventory from top brands including General Electric, Siemens, Cutler Hammer, Square D, and more, we ensure reliable solutions for every project.

At ESU Inc., our knowledgeable team is committed to exceeding customer expectations. Call 858.558.2850 today to find the HVAC parts and electrical supplies you need from a trusted wholesaler.

ESU buys and sells new & used Circuit Breakers, Fuses, Switches, Plugs and more for Linda Vista, San Diego

Electrical Supplies Unlimited buys and sells new & used Circuit Breakers in Linda Vista and San Diego surrounding areas including , Mira Mesa, La Jolla, Pacific Beach, Miramar, University City, Sorrento Valley and many more. Of course, we can arrange shipment on a wide variety of products to service those outside our area. We will also buy your used Transformers.

Electrical Supplies Unlimited (ESU) is your trusted partner for all your electrical supply needs in the Linda Vista area of San Diego. We stand as a premier buyer of a wide range of electrical components, including transformers, breakers, fuses, and more – both new and used. Our commitment to excellence extends to every aspect of our business, ensuring that we provide the highest quality products to our customers. Whether you're looking to sell surplus electrical equipment or searching for specific components, ESU is here to streamline the process, offering competitive pricing and a seamless experience. With a reputation built on reliability and a dedication to customer satisfaction, ESU is the go-to source for all your electrical supply requirements in Bay Ho and beyond. Contact us today to explore how we can assist you with your electrical supply needs

Welcome to ESU, your trusted partner for all your circuit breaker needs in Linda Vista, San Diego. We specialize in buying new, used, and surplus circuit breakers, providing a streamlined solution for individuals and businesses looking to optimize their electrical systems. With a focus on sustainability and cost-efficiency, ESU offers a unique opportunity to turn your surplus or unused circuit breakers into value. Our expert team assesses each circuit breaker to ensure it meets our high standards of quality and safety, ensuring you receive a fair and competitive offer. Whether you're upgrading your electrical infrastructure or simply have surplus inventory, ESU is here to provide a hassle-free way to sell your circuit breakers while contributing to a more sustainable future. Contact us today to discover how ESU can help you unlock the potential of your circuit breakers.

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 are a fully stocked Electrical Distributor and Electrical Wholesaler with many different lines in stock. We specialize in  hard to find items. 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 stock most major brands including General Electric, Hammond Power, ITE Siemens, Cutler Hammer, Square D, FPE Federal Pacific, Pushmatic, Zinsco, Crouse Hinds, Challenger, Westinghouse, Sylvania, and Bryant.

Our inventory consists of a large selection of Circuit Breakers, Transformers, Disconnects, Panelboards to 600v, Fuses up to 3000 Amps, Bolt Switch Pullouts, Motor Starters and Relays, Meter sockets, Lighting ballasts, Metal Halide and Sox bulbs. We also carry Lithonia Commercial and residential lighting fixtures as well.

Our Products ESU sells a large and diverse inventory of Electrical Supplies, Electrical Equipment, including Circuit Breakers, Fuses, Transformers, Panelboard switches, Safety switches, Fuseable switches, Meter Sockets, Motor Controllers, Lighting  Ballasts, Bolt switch and much more. We carrier almost all manufacturers including Zinsco, Pushmatic, FPE Federal Pacific, ITE Siemens,  Cutler Hammer, Lutron, Lithonia,, Square D, Challenger and many more. We serve the San Diego and SD County areas and to many other intra and interstate clients. We sell products to fit any requirement or budget. ESU rents Greenlee Wire Pullers, Conduit benders as well as other electrician tools. Talk directly to one of our specialists, Ed, Scott, Kevin or Chris to find out more. So give us a call today at 858.558.2850 and let us serve you

Circuit Breakers Electrical Supplies Unlimited buys and sells new and used Circuit Breakers and more for Linda Vista, Bay Ho, San Diego County and surrounding areas including Sorrento Valley, La Jolla, Miramar, Miramar, Carmel Valley, University City 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.

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.

Circuit Breakers Electrical Supplies Unlimited is your go-to source for Circuit Breaker electrical supplies in San Diego and surrounding areas. We have a large inventory of most brands of circuit breakers including most amperages and voltages. We carry a large variety of manufacturers, including Zinsco, Federal Pacific FPE, Pushmatic, Bulldog, Cutler, Hammer, ITE Siemens, Square D etc. in our San Diego store. We carry most amperages and voltages. Some examples of what we carry:

20 Amp thru 125 amp Zinsco breakers
20 amp through 1200 amp 480 volt Siemens breakers 3 phase and single phase
15 thru 100 amp 120/240 Volt Pushmatic Breakers
15 thru 1200 amp 120/240 and 480V Federal Pacific FPE circuit breakers

We are circuit breakers and electrical hardware experts. Do not hesitate to call us at 858.558.2850 to find out which Circuit Breaker is right for your requirement.

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

ESU buys and sells new & used Circuit Breakers, Fuses, Switches, Plugs and more for Normal Heights, San Diego

Electrical Supplies Unlimited buys and sells new & used Circuit Breakers inNormal Heights and San Diego surrounding areas including , Mira Mesa, La Jolla, Pacific Beach, Miramar, University City, Sorrento Valley and many more. Of course, we can arrange shipment on a wide variety of products to service those outside our area. We will also buy your used Transformers.

Welcome to ESU, your go-to destination for circuit breaker solutions in Normal Heights, San Diego. At ESU, we're dedicated to simplifying the process of buying new, used, and surplus circuit breakers, catering to a wide range of needs for both residential and commercial applications. If you find yourself with excess circuit breakers due to upgrades or changes in your electrical system, ESU offers a convenient and environmentally-conscious solution. Our team of experts meticulously evaluates each circuit breaker to ensure its quality and performance, offering a competitive price for your surplus inventory. With a commitment to sustainability and efficient electrical solutions, ESU not only helps you maximize the value of your unused circuit breakers but also contributes to responsible resource management. Reach out to ESU today and let us help you turn your surplus circuit breakers into a valuable asset.

Electrical Supplies Unlimited (ESU) is your trusted partner for all your electrical supply needs in the Hillcrest area of San Diego. We stand as a premier buyer of a wide range of electrical components, including transformers, breakers, fuses, and more – both new and used. Our commitment to excellence extends to every aspect of our business, ensuring that we provide the highest quality products to our customers. Whether you're looking to sell surplus electrical equipment or searching for specific components, ESU is here to streamline the process, offering competitive pricing and a seamless experience. With a reputation built on reliability and a dedication to customer satisfaction, ESU is the go-to source for all your electrical supply requirements in Normal Heights and beyond. Contact us today to explore how we can assist you with your electrical supply needs

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 are a fully stocked Electrical Distributor and Electrical Wholesaler with many different lines in stock. We specialize in  hard to find items. 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 stock most major brands including General Electric, Hammond Power, ITE Siemens, Cutler Hammer, Square D, FPE Federal Pacific, Pushmatic, Zinsco, Crouse Hinds, Challenger, Westinghouse, Sylvania, and Bryant.

Our inventory consists of a large selection of Circuit Breakers, Transformers, Disconnects, Panelboards to 600v, Fuses up to 3000 Amps, Bolt Switch Pullouts, Motor Starters and Relays, Meter sockets, Lighting ballasts, Metal Halide and Sox bulbs. We also carry Lithonia Commercial and residential lighting fixtures as well.

Our Products ESU sells a large and diverse inventory of Electrical Supplies, Electrical Equipment, including Circuit Breakers, Fuses, Transformers, Panelboard switches, Safety switches, Fuseable switches, Meter Sockets, Motor Controllers, Lighting  Ballasts, Bolt switch and much more. We carrier almost all manufacturers including Zinsco, Pushmatic, FPE Federal Pacific, ITE Siemens,  Cutler Hammer, Lutron, Lithonia,, Square D, Challenger and many more. We serve the San Diego and SD County areas and to many other intra and interstate clients. We sell products to fit any requirement or budget. ESU rents Greenlee Wire Pullers, Conduit benders as well as other electrician tools. Talk directly to one of our specialists, Ed, Scott, Kevin or Chris to find out more. So give us a call today at 858.558.2850 and let us serve you

Circuit Breakers Electrical Supplies Unlimited buys and sells new and used Circuit Breakers and more for Normal Heights, San Diego County and surrounding areas including Sorrento Valley, La Jolla, Miramar, Miramar, Carmel Valley, University City 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.

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.

Circuit Breakers Electrical Supplies Unlimited is your go-to source for Circuit Breaker electrical supplies in San Diego and surrounding areas. We have a large inventory of most brands of circuit breakers including most amperages and voltages. We carry a large variety of manufacturers, including Zinsco, Federal Pacific FPE, Pushmatic, Bulldog, Cutler, Hammer, ITE Siemens, Square D etc. in our San Diego store. We carry most amperages and voltages. Some examples of what we carry:

20 Amp thru 125 amp Zinsco breakers
20 amp through 1200 amp 480 volt Siemens breakers 3 phase and single phase
15 thru 100 amp 120/240 Volt Pushmatic Breakers
15 thru 1200 amp 120/240 and 480V Federal Pacific FPE circuit breakers

We are circuit breakers and electrical hardware experts. Do not hesitate to call us at 858.558.2850 to find out which Circuit Breaker is right for your requirement.

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