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Thread: Grease on new Siemens circ. breaker contacts - need to wipe out before installing?

  1. #16
    DIY Member electrotuko's Avatar
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    It was not called on older breakers, only recently Siemens tarted putting this stuff in.
    Was not it needed, not called before, does it has to be addd on previosuly bought breakers???

  2. #17
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by bluebinky View Post
    I'll probably get beat up for this, but there seem to be two basic kinds of "grease" being talked about here.
    1) non-conductive to keep oxygen out.
    2) conductive to help reduce problems when dissimilar metals are connected (Al-Cu).

    My guess is that the breaker has the non-conductive grease.

    I would think your guess is correct.

    A conductive grease could really cause problems and would do very little good, and should not be needed on good clean contacts.
    Theory only works perfect in a vacuum.

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  3. #18
    DIY Senior Member Homeownerinburb's Avatar
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    Quote Originally Posted by DonL View Post
    I would think your guess is correct.

    A conductive grease could really cause problems and would do very little good, and should not be needed on good clean contacts.
    Actually, the stuff I was writing about, and that I use is indeed conductive.

    Conductive grease is GOOD. Any place where there is dubious contact, is an opportunity for heating and burning.

    Lord knows that the old Zinsco trash was infamous for having contacts in the breakers that did not grab the buss bars for squat. In the event that I am called out on a dodgy Zinsco panel, and it is common enough, I likely will find a breakers that has not been making reliable contact to the buss bar and is arcing. Assuming that the client will not face up to the cost of a re-panel, often all I can do is clean up the buss bar, replace the breaker, and apply a generous dose of conductive grease.

    Admittedly, there are situations where too much of a good thing is the case.

  4. #19
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by Homeownerinburb View Post
    Actually, the stuff I was writing about, and that I use is indeed conductive.

    Conductive grease is GOOD. Any place where there is dubious contact, is an opportunity for heating and burning.

    Lord knows that the old Zinsco trash was infamous for having contacts in the breakers that did not grab the buss bars for squat. In the event that I am called out on a dodgy Zinsco panel, and it is common enough, I likely will find a breakers that has not been making reliable contact to the buss bar and is arcing. Assuming that the client will not face up to the cost of a re-panel, often all I can do is clean up the buss bar, replace the breaker, and apply a generous dose of conductive grease.

    Admittedly, there are situations where too much of a good thing is the case.


    If you say so.

    Sounds like a half ass fix to me.

    If the panel needs replaced then it should be replaced.

    I hope you have good insurance.

    A breaker panel is nothing to play with, or cut corners on.

    Good thing JW is not the inspector. I agree with him.



    Good Luck.
    Last edited by DonL; 08-22-2013 at 02:20 PM.
    Theory only works perfect in a vacuum.

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  5. #20
    Electrical Contractor/Instructor jwelectric's Avatar
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    for those sold on this junk watch this clip

    http://www.youtube.com/watch?v=hlhJPjQxA-Q

  6. #21
    DIY Senior Member Homeownerinburb's Avatar
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    Quote Originally Posted by jwelectric View Post
    for those sold on this junk watch this clip

    http://www.youtube.com/watch?v=hlhJPjQxA-Q
    No, I don't think I will, thanks.

  7. #22
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by jwelectric View Post
    for those sold on this junk watch this clip

    http://www.youtube.com/watch?v=hlhJPjQxA-Q

    That was nice.

    I need to get some of that stuff for use in my Sterno grill.
    Theory only works perfect in a vacuum.

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  8. #23
    DIY Senior Member bluebinky's Avatar
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    I used Noalox in a couple of places recently (main lugs on my new service). After watching the video, I'm having real doubts about the stuff. Not really worried, since the actual amount is very small and everything was torqued correctly...

    Once again, JW, thanks for sharing your knowledge and experience.

  9. #24
    DIY Senior Member dj2's Avatar
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    I just had my home telephone box replaced, and the ATT tech said that all their connectors come greased now.

  10. #25
    DIY Senior Member Homeownerinburb's Avatar
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    Quote Originally Posted by bluebinky View Post
    I used Noalox in a couple of places recently (main lugs on my new service). After watching the video, I'm having real doubts about the stuff. Not really worried, since the actual amount is very small and everything was torqued correctly...

    Once again, JW, thanks for sharing your knowledge and experience.
    No kidding, the actual amount is very small.

    Did you slosh around ANYTHING LIKE how much that guy was using for his non-scientific "demonstration"?

  11. #26
    Electrical Contractor/Instructor jwelectric's Avatar
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    A spot the size of a BB along with an arc and then all …… well you know what is fixing to break lose

  12. #27
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by dj2 View Post
    I just had my home telephone box replaced, and the ATT tech said that all their connectors come greased now.

    That is a none conductive grease.

    Kind of like Clear Vaseline.

    Keeps the moister out.

    It is great for low voltage stuff.

    They carry in on the truck so they can screw you when you get the bill.


    My bad.
    Theory only works perfect in a vacuum.

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  13. #28
    DIY Senior Member dj2's Avatar
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    Quote Originally Posted by DonL View Post
    That is a none conductive grease.

    Kind of like Clear Vaseline.

    Keeps the moister out.

    It is great for low voltage stuff.

    They carry in on the truck so they can screw you when you get the bill.


    My bad.
    Much thicker than Vasaline.
    The box is the phone co property, so it was replaced at no cost.
    When it comes to screwing with Vasaline...Let's not get into that.

  14. #29
    Electrical Contractor/Instructor jwelectric's Avatar
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    Vaseline soaped cotton balls are a great camp fire starter

  15. #30
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by jwelectric View Post
    Vaseline soaped cotton balls are a great camp fire starter
    Never tried that.


    A roll of toilet paper and a pint of alcohol in a coffee can makes a nice little heater for camping.
    Theory only works perfect in a vacuum.

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