MtnDon
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# Posted: 6 Jun 2016 04:09pm - Edited by: MtnDon
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Not to criticize you ChuckD, but I have an issue with some of the info in that video. I didn't have 47 minutes to watch the entire thing. However, when I fast forward clicked here and there something interesting came up at 38:22, talking about a PV panel disconnect. The guy shows he used an outdoor box normally used for a "spa". It's a Square D product. He doesn't get into differentiating between DC and AC devices. While the Square D QO line can be used for some DC uses there are voltage limits, which he skips over.
Ditto a few seconds later when he shows his indoor disconnect. That one is an AC only product by the looks of it. Repeated use may cause early erosion of the copper contacts caused by the DC arcing.
A much better method is to use Midnite Solar enclosures and the MNEPV breakers which are rated to 150 VDC and do not require the amps to be de-rated like many other breakers.
When I see one thing I know is not 100% correct it casts suspicion on the balance of the info. So, IMO, NOT the ultimate guide. It can be very difficult to separate the good info from the so-so and the so-wrong.
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