380V water heater element running with 220V to reduce power?

[bionut]

Hello, i was thinking about buying a 9000W 380V element and plug it in a 220V outlet to reduce the power to around 5000W. Is this posible? If so, how can i reduce the power even more?

I need to say that is very expensive to get ULWD elements here.

 

[kayakman]

The formula is 220v squared divided by 380v squared
or 33.5 percent of 9000w
you will get 3016 watts out of the element

Jim

 

[ajdelange]

You can put a power diode in series with the element so that it only conducts during one half of the cycle thus producing half the usual power or about 1500 W.

 

[bionut]

3000w is even better, thanks. I did nkt kbew the formula.