Do transfer switches get shipped with a "Site Specific" Arc Flash Warning Label mounted on the door?
Typically this information isn't available at the time the ATS's are shipped. The Arc flash label is required but it needs to be applied in the field by the installer. The reason for this is that the information generally comes from engineering study and that engineering study is really site specific. It is dependent on the overcurrent protection devices that are ahead of the transfer switches and the settings of those devices.