Mounting relays/contactor in panel okay?

[Smart $]

Which primarily is based on your comment in post #11


My points have been, that all alterations need to be acceptable to the AHJ, not just the 'uncommon' ones and just because something has been altered does not necessarily make it unacceptable.

...and I covered that wayyyy back in post #2. :roll:

 

[Smart $]

... At the risk if being picky may it be that the AHJ now would have license with being critical of the already UL listed factory assembly as received originally? ...

And realization of the conundrum kicks in...

 

[templdl]

And realization of the conundrum kicks in...

Yup. It pays to be aware of what grief one can get into before you do.
It may be the issue of opening up Pandora's box. It about trying to avoid a confide and debate with thas AJH who sometimes could be difficult to maintain a good relationship with.

 

[iwire]

Wow, so much conjecture and speculation.

How about what UL says?

This is out of the 2010 UL General Directory.

Field Modifications

What happens to the Listing if a UL-Listed product is modified in the field?

An authorized use of the UL Mark is the manufacturer’s declaration that the product was originally
manufactured in accordance with the applicable requirements when it was shipped from the factory. When
a UL-Listed product is modified after it leaves the factory, UL has no way to determine if the product
continues to comply with the safety requirements used to certify the product without investigating the
modified product. UL can neither indicate that such modifications ‘‘void’’ the UL Mark, nor that the
product continues to meet UL’s safety requirements, unless the field modifications have been specifically
investigated by UL. It is the responsibility of the Authority Having Jurisdiction (AHJ) to determine the
acceptability of the modification or if the modifications are significant enough to require one of UL’s Field
Engineering Services staff members to evaluate the modified product. UL can assist the AHJ in making this
determination.
An exception for a field modification authorized by UL is when the product has specific replacement
markings. For example, a switchboard may have specific grounding kits added in the field. The
switchboard is marked with a list of specific kit numbers that have been investigated for use in that
particular switchboard. Only grounding kits that are included on the marking on the product have been
investigated for use in that product.
If a party wishes UL to determine if the modifications made to a UL Listed product comply with UL
requirements, the appropriate Field Engineering Service can be initiated to investigate the modifications.
This investigation will only be conducted after UL consults with the AHJ to ensure that UL’s investigation
addresses all areas of concern and meets all of the AHJ’s needs.
If you have any questions or would like to inquire about a Field Evaluation, contact Field Services at
+1-877-UL-HELPS, prompt #2 (+1-877-854-3577) or visit http://www.ul.com/field/index.html.

It is the responsibility of the Authority Having Jurisdiction (AHJ) to determine the acceptability of the modification

That applies to contactors in panels to holes made in enclsures for the entry of wire.

 

[jim dungar]

At the risk if being picky may it be that the AHJ now would have license with being critical of the already UL listed factory assembly as received originally?

The AHJ has always had that 'license', per the NEC, which is why there are locations (e.g. State of Washington) that have restrictions on the AHJ 'not approving' listed equipment.

 

[iwire]

An AHJ does have the authority to disapprove any portion of an installation, listed (as manufactured ) or otherwise, either in part or as a whole.

As a side note, in this state (MA) the AHJs powers have been a bit reduced. They cannot refuse listed equipment that is installed per the listings.