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MC4 101

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Alan Georges:
Here's an informative link over to Prepared Ham that spells out the basics of MC4 connectors:
http://offgridham.com/2016/03/introduction-mc4-connectors/

I have got to move into these soon.  While I don't have much solar out in the yard at present, the BOL will need some soon.  Might as well pop for the crimper.

FreeLancer:
:popcorn:

Alan Georges:
One other thing, do not mix up MC4 with MC5.   Your neighbors will never forgive you.

idelphic:

--- Quote from: Alan Georges on March 27, 2016, 08:02:34 AM ---Here's an informative link over to Prepared Ham that spells out the basics of MC4 connectors:
http://offgridham.com/2016/03/introduction-mc4-connectors/

I have got to move into these soon.  While I don't have much solar out in the yard at present, the BOL will need some soon.  Might as well pop for the crimper.

--- End quote ---
I've never been a fan of the crimpers - I've used Molex 2pin connecters from Radio Shack for years,..  While I crimp them,.. I solder them also.  So many times I have had a mechanical crimp fail. 

Crimper may make a difference though.

Alan Georges:
Got my first batch of connectors in this week, along with crimp and connector tools.   As soon as this rainy weather lets up I'll get down to putting these on the outside solar, well pump, etc. to replace some aging PowerPole connectors.  Here are a couple of useful videos I've found:
crimping & assembling: https://www.youtube.com/watch?v=sT-WIU91viQ
connect & disconnect w/tool: https://www.youtube.com/watch?v=woPktgfJn7w

Unlike PowerPoles there doesn't seem to be any hard-and-fast polarity standard.  Also these things have a gender, and what's more there's even some confusion about that.  I'm just going with the one panel I already have, which agrees with this diagram from Arizona Wind & Sun: http://www.solar-electric.com/how-to-use-mc4-connectors-cables.html/.  Simple and done.

Pretty nice though.  They've got an o-ring seal to keep out the weather and local wildlife, looks like they'll hold up a lot better in the yard than PowerPoles.

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