6 Sep
2021
6 Sep
'21
7:20 a.m.
The large 3 phase input on it 3803 is likely overkill
for even a controller
and full string of 8 drives. It's easier to oversize things and have a 3x
safety margin, then deal with running close to the limits and risk any
problems from poorly installed site wiring.
It is overkill, but a full string can really punish the circuit
breaker with enormous current surges. Better to overdo it with a
breaker that can handle the spike of all eight 3420s deciding to do
some reversing within a few seconds of each other.
Even a simple setup with a 3803 and a single 3420 will create large
surges that a household circuit may not like much.
--
Will