Customer has an existing 600a 240v single phase panel feed through a CT can with paralleled 4/0 CU. to main lugs no main breakers. The panelboard has 6 breakers feeding loads throughout the house. We need to install and ATS for generator. The calculated load is 344amps. Parralleled 4/0 is good for 460a. Would a 600a disconnect and fuse be allowed? or would I have to go to 500a fuses? If I we go with 400a Im going to be required to change the meter can to 320/400. vs the original CT set up. I also thought about trying to back feed thru a breaker at panel Im not sure if this woudl be allowed period.
600 to 400 disconnect
- Thread starter mannyb
- Start date
MyCleveland
Senior Member
- Location
- Cleveland, Ohio
They make a 450A fuse I believe.
hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
I doubt the poco would care about changing to a different meter set up. It would change nothing on their end as far as metering.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I agree; no reason to change any equipment, especially to go smaller.
You could use 2,000a gear if you wanted, as long as you fuse correctly.
You could use 2,000a gear if you wanted, as long as you fuse correctly.