Black M92 Marr Marrette for Trillium - Fiberglass RV


 
 
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Old 05-17-2011, 05:00 PM   #1
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Black M92 Marr Marrette for Trillium

Hello,

Looks like I am missing one of the black marrette caps that go on the wire joins. It looks like the one in the picture. If anyone has one around from re-doing their wiring, or know where I can get one it would be much appreciated. Thanks!

~Rodre
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Old 05-17-2011, 06:49 PM   #2
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any home building centre or hardware store will carry marrettes
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Old 05-17-2011, 07:17 PM   #3
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Are those a Canadian thing?
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Old 05-18-2011, 12:23 PM   #4
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Yes, the Marr company is Canadian you can read their history here:

http://www.tnb-canada.com/en/catalog..._marrcat_e.pdf

I found the missing cap deep in the floor boards of my Trillium, so I no longer need one.


BTW, the model is a No.2, not an M92. The reference one I was looking at the cap was a little beat up and my eyes are getting old - damn.

Here is also some more info on the unit:

http://www.tnb-canada.com/en/catalog..._marrcat_e.pdf

Cheers!
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Old 05-18-2011, 01:58 PM   #5
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Ok, I never heard of it and don't have a clue what it does.
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Old 05-18-2011, 03:11 PM   #6
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Quote:
Originally Posted by Greg H View Post
Ok, I never heard of it and don't have a clue what it does.
Hi Greg,

It is used to join two or possibly more (up to what the metal "barrel" piece will accomodate inside it) electrical wires together instead of a crimp style terminator cap. The nice thing about them is that they are completely reuseable as they have a screw that presses down and holds the wires together from the side, then you simply screw on the black plastic piece (that I was missing) onto the top of the metal barrel piece that is holding the wires together to insulate the new connection(s). You can try and reuse the crimp on ones but it take some patience and skill to open them up again where they will release the wires and so that you can do whatever you need to do then crimp them back on, assuming removing the crimp on terminator didn't damage the plastic beyond being useful. I hate having to cut the wires to get the terminating cap off because each time it gets shorter and shorter. This may not be a problem but in the case of the 7 way cable they only left about 2 inches of cable to work with, so if you have to cut it each time it wouldn't last long and it makes it hard to work with each time it gets shorter.

~Rod
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Old 05-18-2011, 04:39 PM   #7
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Thanks for the info, that's a good idea because I know all about cutting wires and replacing the crimp connecters.
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Old 05-28-2011, 07:11 AM   #8
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this style has largely been given up, most people (tradesmen) now use either twist on Marrettes or Ideal twist on wire nuts
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Old 05-28-2011, 02:42 PM   #9
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Actually, Home Depot still sells these:

Marrette - Marrette No. 2 Set Screw - Pack of 3 - 2C-CDN - Home Depot Canada

I think they are good for applications where there is a lot of vibrations, such as the trailer rolling down the highway, due to the setting screw that gets locked down by the cap. You could use the crimp on type, but personally I prefer not to for reasons stated above. Just providing this as information for anyone else that may be looking for some and not trying to "be right" or anything like that. Cheers!

~Rodre
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Old 06-02-2011, 11:28 AM   #10
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Just like milk in a bag..... It's a Canadian thing
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Old 06-25-2011, 02:01 PM   #11
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Smile Never too old to learn

I don't recall ever hearing of Marrette Caps and I have an associate degree in electic power and worked 22 years designing tools which used such things.

But, then again, we used what our company stocked for the most part.

Makes perfect sense for high vibration applications.

Thomas & Betts makes them:

Thomas & Betts | Search Engine=
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