Mc4 puzzle?

Discussion in 'Solar Power' started by Emmenay, Apr 17, 2014.

  1. Emmenay

    Emmenay Read Only Funster

    Joined:
    Dec 11, 2011
    Messages:
    364
    Likes Received:
    274
    Location:
    Anywhere
    My mc4 extention cables arrived this evening and naturally to show her indoors how secure a fit they would be, I attempted to insert male into female, only to have to admit, 'I can't get it in dear'! :Wink:
    So on closer investigation there appeared to be some sort of obstruction deep down in the depths of the female part, so, I inserted a small tool, (thats what she said :RollEyes:) and managed to retrieve the item in the picture.
    Now before someone says 'that is supposed to be in there, or she's going to get pregnant now, there was no way in ten months of sundays that the male was going to enter the female. Please see picture for the offending item. Answers on a postcard as this is my first encounter into Mc4 world..:thumb:

    DSC_0705.jpg
     
  2. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    26,457
    Likes Received:
    25,136
    Location:
    Macclesfield
    It's called a hymen clip.
     
    • Like Like x 1
  3. Emmenay

    Emmenay Read Only Funster

    Joined:
    Dec 11, 2011
    Messages:
    364
    Likes Received:
    274
    Location:
    Anywhere
    Well hymen to that Brian, whats that then and what is doing in the connector, or not now as the case may be?



    HaHa just googled it LMAO
     
    Last edited: Apr 17, 2014
    • Like Like x 2
  4. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    26,457
    Likes Received:
    25,136
    Location:
    Macclesfield
    :BigGrin:

    OK, I have seen that clip many times. It's an insert that acts as a spring retainer. The spiky bits lock it in a hole and the inner bits create friction to retain a shaft pushed in.

    I've no idea if that is how it should be in your connector, now you know what it does see if it might work with the male side.

    Maybe it was not pushed down far enough ????
     
  5. Techno

    Techno Funster Life Member

    Joined:
    Jul 28, 2010
    Messages:
    13,859
    Likes Received:
    14,511
    Location:
    Leeds the one up North
    It certainly does not belong, not a component of an mc4
     
  6. Emmenay

    Emmenay Read Only Funster

    Joined:
    Dec 11, 2011
    Messages:
    364
    Likes Received:
    274
    Location:
    Anywhere
    Oh boy am I glad you said that, I was beginning to think I had fubard it. :cry:
     
  7. Techno

    Techno Funster Life Member

    Joined:
    Jul 28, 2010
    Messages:
    13,859
    Likes Received:
    14,511
    Location:
    Leeds the one up North
    I think I understand what Brian is saying but I've never encountered one of these but even if it was to retain the pin it would not be required once the back nut was tightened up. As long as you have continuity through the connector it is fine and would serve no part to play in the weather protection rating
     
  8. hilldweller

    hilldweller Funster Life Member

    Joined:
    Dec 5, 2008
    Messages:
    26,457
    Likes Received:
    25,136
    Location:
    Macclesfield
    They are in a lot of push together two part plastic assemblies. Peg in one half, hole with clip in the other.

    It looks wrong for electrical.

    Big question, were these in both connectors ?
     
  9. Techno

    Techno Funster Life Member

    Joined:
    Jul 28, 2010
    Messages:
    13,859
    Likes Received:
    14,511
    Location:
    Leeds the one up North
    The pins already have a no return spur on them to prevent withdrawal after insertion
    Oops pardon lol
    [​IMG]
     
  10. Emmenay

    Emmenay Read Only Funster

    Joined:
    Dec 11, 2011
    Messages:
    364
    Likes Received:
    274
    Location:
    Anywhere
    I won't know until tomorrow morning, the other female is on the end of the panel.
     
  11. Minxy Girl

    Minxy Girl Funster Life Member

    Joined:
    Aug 22, 2007
    Messages:
    8,580
    Likes Received:
    9,963
    Location:
    E Yorks
    You smutty lot ... I know you're not talking about electrical stuff at all.:Blush:

    You've all been watching too many 'carry on' movies with their 'double entendre' phrases!!!! :Rofl1:
     
    • Like Like x 2
  12. Emmenay

    Emmenay Read Only Funster

    Joined:
    Dec 11, 2011
    Messages:
    364
    Likes Received:
    274
    Location:
    Anywhere
    Sussed it!

    Not satisfied with simply leaving the piece out I googled the assembly method of Mc4's, I soon learned that there should be an audible click when you insert the pins into the plastic bodies, and that they will not pull out without a 'special' tool,
    Having just dismantled the suspect female part for the umpteenth time and not hearing any click, the pin just drops out of the plastic body with no effort. That cannot be right me thinks so I set about dismantling the male version and soon find the pin will not pull out. On closer inspection there is an identical metal retainer in there on the back end, now i've seen this I rebuild the female side with the clip in the same place and hey presto, click and its locked in.
    So, some stupid oaf had put the retainer in the main body of the female, and not in the back end where it should have been.
    Moral of the story, when you're dealing with the female, make sure you stick your retainer in the right end otherwise things get messy!:Rofl1::Rofl1:
     
    • Like Like x 2

Share This Page