We just found out that our printed Installation Guide that is packaged with all our Hardwired Power Strips was not updated. The Guide still carries instructions mentioning Plastic Insulation Sheet which is no longer used and needed. This practice is perfectly safe according to ETL (UL testing standard) safety guidelines.
Please check the Support link below for more details.
Thank you very much to Steve of Saint Charles of MN, or this little mistake may still be carried on for who knows how long.