Hello Guys, I've got a question on GFCI, 208 volt, single phase. Feeding a dishwasher in a commercial setting. Can we use a GFCI breaker on an appliance that has no neutral wire in the circuit? If so, how is the current measured? Between the 2 hot legs? If there is a variation of 5 ma between the the 2, should'nt the GFCI still work without a neutral? One of my appliance guys got shocked. Water got in the control box. I want to put in a GFCI without having to run a new cable. I have two hot legs and a groung existing. The contractors did the install and used a standard 2 pole, 30 amp breaker. I took this dishwasher out of service until I get an answer from the FORUM. I've always trusted you for direction. Appreciate your help!