Electrical1234567
Member
- Location
- Colorado
- Occupation
- Electrician
I am wiring a 164 unit apartment complex and am having issues with just about every 240v gfi breaker tripping, What’s weird is just about every unit is doing it regardless if the breakers have a load or not. What’s even more strange is that when we move the breakers down 1 bussed space in the panel they no longer trip. For example A phase on the top half of the breaker B phase on the bottom then we move them down 1 space so B phase on the top half A phase on the bottom and the breakers no longer trip. None of the 120v afci/gfi breakers have any issues, and it’s a 3 phase system so it’s doing it across A,B and C phase. Any ideas on what would cause something like this?