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  1. Thread: Why NRTL ?

    by petersonra
    Replies
    11$$
    Views
    227

    many of them have pretty decent ratings though...

    many of them have pretty decent ratings though when protected by fuses.
  2. Thread: Why NRTL ?

    by petersonra
    Replies
    11$$
    Views
    227

    my guess might be that the evaluators did not...

    my guess might be that the evaluators did not look real close. most iec contactors are rated at 65k with class j fuses.
  3. Replies
    11$$
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    221

    as long as they are accessible I see nothing...

    as long as they are accessible I see nothing wrong. it might make for a bit of a troubleshooting nightmare, but that is not a code issue.
  4. Replies
    10$$
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    249

    because I was curious I called up a manual for...

    because I was curious I called up a manual for one of the Mitsubishi units. It shows a fuse on the 220V going outside that is found on the control board.
  5. Replies
    10$$
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    249

    I think you have several choices. 1. Change...

    I think you have several choices.

    1. Change the cable to 12/3.

    2. Install a 15A CB on the hot lines of the 14/3.

    3. Make the manufacturer fight it out with the inspector.

    If the...
  6. Replies
    5$$
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    138

    us the area under the ground actually classified?

    us the area under the ground actually classified?
  7. Replies
    6$$
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    152

    if you are using a GP xfmr, you probably need to...

    if you are using a GP xfmr, you probably need to allow for the inrush.

    machine tool transformers will allow for the inrush though. a rule of thumb for machine tool transformers is to size it no...
  8. Replies
    16$$
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    303

    http://www.homedepot.com/p/Halex-1-2-in-Rigid-Box-...

    http://www.homedepot.com/p/Halex-1-2-in-Rigid-Box-Spacer-91641/100144864?N=5yc1vZbohkZ1z113etZ1z117rg

    something like this?
  9. Thread: Class Div 1

    by petersonra
    Replies
    7$$
    Views
    166

    This is a significant hint that Bob A. has also...

    This is a significant hint that Bob A. has also brought up.
  10. I have seen this provision before and never...

    I have seen this provision before and never really thought much about it. I have noticed that UL508a has a blurb that is a lot clearer along these lines.
  11. I do not see anywhere in Part X where the...

    I do not see anywhere in Part X where the requirements for BC OCPD are modified. i would want to look at the drive manual before I commented on why it might say such a thing.

    1.8* 1.75 = 3.15....
  12. Replies
    4$$
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    240

    The load is based on the actual devices on the...

    The load is based on the actual devices on the secondary side the xfmr is powering and not the rating of the xfmr. Most of us tend to use the rating of the xfmr as the load just to allow future use...
  13. Replies
    6$$
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    131

    the $38 is to rent it for 6 months.

    the $38 is to rent it for 6 months.
  14. Replies
    6$$
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    131

    us this what you are looking for? almost $90. ...

    us this what you are looking for? almost $90.
    ...
  15. Replies
    9$$
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    271

    I sent an email to belden about this. here is...

    I sent an email to belden about this.

    here is their reply.

    s.
  16. Thread: Class Div 1

    by petersonra
    Replies
    7$$
    Views
    166

    Is this assembly listed as a whole? I can't...

    Is this assembly listed as a whole?

    I can't imagine AB would ship you an assembly nippled together that has to be taken apart.

    You might want to take a look at exception (1) or (3) to...
  17. Replies
    4$$
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    240

    Maybe people were too busy to respond. I...

    Maybe people were too busy to respond.

    I don't have any problems with your calculations however I think you are restricted to final ampacity not to exceed the 75 deg C column after any adjustment...
  18. Replies
    1$$
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    86

    It kind of comes down to how well protected it is...

    It kind of comes down to how well protected it is from the weather under the canopy.
  19. Replies
    4$$
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    209

    I see nothing wrong with this.

    I see nothing wrong with this.
  20. Replies
    4$$
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    209

    What do you mean by "bond the enclosure"? The...

    What do you mean by "bond the enclosure"? The incoming conduit will bond the metal box so nothing else needs doing to the box.



    IMO, it depends entirely on what size circuit conductors are in...
  21. Replies
    26$$
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    694

    my guess would be that the IE calculation is for...

    my guess would be that the IE calculation is for the line side of the main.

    it is probably somewhat lower by the time it gets to the bucket.

    but, unless there is some kind of calculation to...
  22. Replies
    13$$
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    359

    usb outlets are normally class 2 circuits.

    usb outlets are normally class 2 circuits.
  23. Replies
    9$$
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    271

    You can't use GP conductors though for Devicenet...

    You can't use GP conductors though for Devicenet as it would not work, even if it meets code.
  24. Replies
    2$$
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    149

    I am not sure what you are asking. The UL...

    I am not sure what you are asking.

    The UL label for ICP in non-classified areas is UL508a.

    UL698a has to do with ICP either installed in classified areas, or installed in unclassified areas...
  25. I do not see a code violation. I am not a huge...

    I do not see a code violation.

    I am not a huge fan of the "someone might do something in the future" reasoning.

    What do the contract plans and specifications state?
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