Frank D
Member
- Location
- Los Angeles, CA
- Occupation
- Electrical project manager
In a multi-family building we are replacing the old gear, (existing gear has no mains on 12 meter set) with new meters and a main disconnec.
We have a calculated load current of 513 amps.
using 513 X 1.25 = 641 So 800 amp breaker?
600 amp breaker max load at 80% = 480 amps
800 amp breaker max At. 80% = 640 amps
so either way 800 amp main breaker?
We have a calculated load current of 513 amps.
using 513 X 1.25 = 641 So 800 amp breaker?
600 amp breaker max load at 80% = 480 amps
800 amp breaker max At. 80% = 640 amps
so either way 800 amp main breaker?