kidd wiring questions

[ClassicCrazy]

Yeah maybe they did change the name to Siemans panels with the 50 watt ones . The older ones with the round cells that got all brown were Arco . I used to have one of those but I let someone borrow it and it got hit by lightning and blasted it . There were two versions of the Siemans - one was 50 watts I think and the other 55 watts ? . One was a bit longer and had a higher VOC I think. I have two of each type here so will have to look at the tag on them sometime.

Larry

[tecnodave]

Larry,

This is an ARCO square cell 33 cells 50 watts, the round cell ones are more rare

David

edit,  two of them, these old beat panels still work!

[tecnodave]

Larry,

Label on ARCO panel

David

[ClassicCrazy]

yeah you have  the M-75 higher voltage panels - I have two of those and also these two  M-55 panels - just walked out and took a picture of them ( and got snow in my boots doing it !)

Larry

[ClassicCrazy]

My quality controls installation  which has been working fine for 7 or 8  years ( before the Brat was on the market )

Larry

[tecnodave]

Larry,

Those panels in my post are M-75's. They only have 33 cells where yours have 36 cells.
Here is an array of Seimens SM-55 panels, their are the same ones as yours ARCO M-55
I have seen these panels in 30 cell, 33 cell and 36 cell

David

edit: the 30 and  33 cell panels were "self regulating". and had lower voltage the M-75 label lists
VMP @ 25deg.C 16.1  VMP @ 47deg C 14.2. VOC 22v @ 0 deg C

edit2:  AFAIK the 33 cell panels are the rarest, not sure, I keep these as history

[tecnodave]

Larry,

Old solarex VLX-53  polycrystalline

david

[tecnodave]

Larry,

More panels on same rooftop of 40 foot storage containers/shop. We are in the midst of a fierce rain storm accompied by 35-50 mph gusts so array legs are removed to prevent flying array's

These are all in use, and you can see my beautiful wiring, I'm very hands on with my solar.

David

edit: those are some of my 20 cent a watt Sanyo HIT 200 watt panels, bought 60 of them used

[ClassicCrazy]

Larry,

Old solarex VLX-53  polycrystalline

david

I have one of those Solarex panels - had it on my truck for a long time at 45 degree angle in front. After few years I guess a rock hit it cause looked at it one day and glass was shattered. I tried putting piece of lexan over it with silicone on edge to keep water out but that didn't stick. That panel was sitting around in my shed for long time - a few years back I gave it to my neighbor who has it charging battery for electric fencer. Even with the glass shattered and not sealed  the cells look the same and it still charges enough to do the job for his fencer .

Larry