120vac primary electrical transformers

120VAC primary transformers are available. For supplying lower secondary voltages. Buck-boost, control power, or filament transformers- shop now.
View Details KMC XEE-6311-075 Transformer; MULTI TAP TO 24VAC 75VA  | Blackhawk Supply
$29.15 each


Choose from over 96 different 120VAC primary electrical transformers to ensure your next project goes smoothly.

If you want to keep the transfer of energy in your circuits safe throughout your home, office, or building then you need a stable electrical transformer.

Our 120 VAC transformers protect your HVAC systems and building automation applications from up to 120 volts of alternating current.

To ensure you get the best protection for your HVAC systems, we work with quality manufacturers such as ACI, Functional Devices, KMC, and Veris.

The products we use come from around the world. If you need a product made here in the United States, check out some of our Functional Devices transformers.

Furthermore, 62 of our devices include a circuit breaker inside the transformer for additional protections.

Additionally, 44 transformers can be mounted on a dual hub, while 47 devices thread around a single hub. If you do not want to use the threaded hub to mount the transformer, you can use the base pad.

VA ratings for electrical transformers range between 20 to 375 volt-amperes.

Here are some other features to consider when purchasing a Blackhawk Supply primary electrical transformer.


  • 120V
  • 208V
  • 240V
  • 277V
  • 280V
  • 480V


  • 120V
  • 12V
  • 16V
  • 24V
  • 32V

Can we help you choose the best primary electrical transformer for your needs?

If you need an electrical transformer for your next project, then you came to the right place. With 96 options you can find one that works for you. If you have trouble finding the best transformer for your needs, let us know how Blackhawk Supply can help you.

Contact our team today, so we can help you pick the best primary electrical transformer for your home, office, or building.

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as experts in 120VAC Primary Electrical Transformers