AC WORKS® Wisdom: What "125/250 Volts" Means

Posted by Christopher Hahn on

When looking at our product descriptions, you’ll often notice a “125/250 Volts” for our products with 4 prongs. You are probably wondering “what does this mean?” or “how does this affect what I will be using this adapter for?”

We have the answers for you.

For most 4-prong adapters and even NEMA configurations, there are two hot wires. They are called hot wires because they are the wires used to carry the electricity. When you have two hot wires, you have two sources of 125 volts. If your application for our adapter only requires 125 volts, then only one hot wire will be used. If it requires 250 volts, then both hot wires will be used. Only the necessary voltage will be used by your application and the adapter.

Please check out our website to read informative blogs about similar topics, and to see our various adapters and cords for your power solution needs. Check us out on Facebook, Pinterest, and Instagram. Give us a like and subscribe to our youtube channel to see more videos just like this one. Shoot us an email if there is a topic you would like to see us cover. Thank you for watching!

AC Connectors strives to provide power solutions to its customers since its founding in 2015. From our headquarters (Oak Creek, Wisconsin, USA), we provide solutions worldwide and work efficiently to ship our AC WORKS® brand products out quickly, especially to those struck by natural disasters.

AC WORKS™ Wisdom

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  • Hello Byron. Yes, it will help power different parts of the trailer. 50A trailers typically have more appliances than 30A trailers. So the extra hot helps to power those.

    Christopher on
  • Trailer , 125/250 50 amp . 2 125 wires 1 ground 1 neutral . so everything in unit is 125 . so with 2 125 hots what does it do power different parts of trailer? Help want to understand this before I plug it in.

    Byron on

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