I don't put much faith in GFI's
They will do a great job of shutting down some shorts.
But when you get smoldering electrical fires, the GFI has never tripped on me.
I recently had a pump smoldering and flaming.... It was plugged into a power strip with a circuit breaker, the power strip was plugged into a switched panel with a GFI, the switched panel was plugged into a GFI on the wall, and the wall was connected to a functioning circuit breaker.
All that and not a thing popped or shut of while the pump smoldered and flamed.
All the outlets for the tanks are GFI. All the custom panels I buillt are GFI. And I still get buzzed on a regular basis.
Dave B
Dave B