Table of Contents

## Is 208 and 240 volt the same?

“220” and “240” are the same thing. “220” is what the unqualified use to describe 240 volt circuits. 208 can only be obtained from a 3-phase wye system. 240 volts can be obtained from either a 120/240 residential system or a 240 volt 3-phase delta system.

### Is 220V the same as 208?

In North America, the terms 220V, 230V, and 240V all refer to the same system voltage level. However, 208V refers to a different system voltage level. The 208VAC system is not the same as 240VAC. It uses a “Y” style transformer with a neutral, and will yield 208VAC between two phases and 120VAC from hot to neutral.

#### Do houses have 208 or 240 volts?

Typically, residential homes have 240 V service, and commercial and high-rise buildings have 208 V service. This varies greatly depending on local codes, electrical requirements, and the age of the building.

**Is 120V and 208V the same?**

Capacity: The main difference between 120V and 208V is that 208V circuits have more power and density, therefore requiring less PDU’s needed in the rack. For example, here’s the two most common circuits at 80% total power: 15A at 120V circuit has capacity for 1.8kW at 80%, equaling 1.44kW.

**Can you get 208V from a 120V panel?**

Therefore, if you put 120V in, you will get 120V out, 208V in gets you 208V out, 240V in gets you 240V out, etc. When you run 120/208V single phase power into an isolation transformer, the two individual hot conductors of 120V are combined into one 208V waveform.

## How do I get 208 volts?

The formula is volts times the square root of 3, which happens to be rounded off to 1.732. For 2 lines each carrying 120 volts, the calculation for this is 120 volts times 1.732, and the result is rounded up to 208 volts. That’s why we call it a 208 volt three-phase circuit, or a 208 volt 3 phase line.

### Can you use 220V for 208V?

Most devices designed for 220 will run on 208 and in shops all over the place this is commonly done. Purely resistive components (like heaters) will run at a slightly lower power. So, your machine will work, but will take longer to come up to temperature.

#### How can I get 208 volts?

**Can I use 208V on 120V?**

Do not plug it into a standard 120V house circuit. 208 usually denotes a voltage available in commercial buildings with three phase service.