W
wozzit99
Hi
Is it mandatory to have a seperate d/c isolator per string or can you rely on the ess isolator built into SMA inverters? I have seen several installations where d/c isolators are used on the same inverter where just the ess switch is used on others.
Wozzit
Is it mandatory to have a seperate d/c isolator per string or can you rely on the ess isolator built into SMA inverters? I have seen several installations where d/c isolators are used on the same inverter where just the ess switch is used on others.
Wozzit