Under the definition for Listed it clearly states that it has to be acceptable to the AHJ. While I don't like this, because it causes too much variation as to what is acceptable and what isn't. This is the way things are. In a certain community in MI we recently had an appeal on such an issue. An UL approved Phase converter was used in a service for a fire pump motor. The AHJ said UL hadn't approved it for that particular application. To the best of my knowledge it still has not been settled, because the Electrical Board of MI sent it back to the locat community to work it out. They did not want to be the one's to possibly set a National Standard on the issue.
Listed. Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that the equipment, material, or services either meets appropriate designated standards or has been tested and found suitable for a specified purpose.
FPN: The means for identifying listed equipment may vary for each organization concerned with product evaluation, some of which do not recognize equipment as listed unless it is also labeled. Use of the system employed by the listing organization allows the authority having jurisdiction to identify a listed product.
