Very confusing. there is no neutrol in 3 phase. Ohms law.
do the math. Total amps or amps per element ?

I was curious as to how to solve this problem so I did a little research. I think my answer is correct.

Changing the configuration from wye to delta increases the voltage across each heater by a factor of 1.73 (square root of 3). The heater voltage becomes:

240V * 1.73 = 416V

If you want to dissipate 27KW of total power then divide by the voltage to get the current through the heaters:

27000W/416V = 64.9amps

To get the line current through each heater divide the total by 3:

64.9amps/3 = 21.6

The currents from the supply is the summation of the currents in the heaters. The line currents are out of phase by 120 degrees so you need to multiple by 1.73:

21.6amps * 1.73 = 37.5amps

Below is a link for a wye and delta calculator. You can plug in any two numbers and calculate the others.

Merry Christmas

Y-connected 3-phase does have a neutral. Delta connected does not.

440 V 3 phase duct heater 2 kw how much amps takes

"440 V 3 phase duct heater 2 kw how much amps takes "

Huh??? Aside from the fact that this is a 10 year old post, what are you saying???