Originally Posted by Trick440
Ok thank you for the clarification. It seems this is a Delta 120/240, 3ph has always confused me.

I'll have to check the breakers to see if its 240v rated breakers.

Do we think the improper contactors and possible wrong breakers could have fried the ballasts? Anything else I should investigate for this repair?



To my knowledge 240V rated breakers are only required where the high leg and another phase are being used for a 240V circuit.