High voltage dc disconnect
The disconnects I was looking at are around $400.
That's a lot of money for a part that doesn't produce any power.
But I do have a slightly used square D 30 amp 600vac local disconnect blade switch for 3 phase that I paid $5 for.
I was thinking that if I wired all 3 switches in serries that would be enough to interrupt that current flow at 450 volts DC.
Each blade gives about a 3/4 inch air gap, I would wire all 3 in serries.
Could this work?
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