BOSS Separator CONTROL PANEL OPTIONS Default. The BOSS oil/water separation system is supplied standard with a NEMA 4X polycarbonite panel. These cabinets, are made from high impact resistant polycarbonate material, and will withstand harsh industrial environments. They have ready mounted hinges and quick lock screws. Protection to IP65 is maintained when fastened. Other options are available as follows. 1- Class I Division II (Polycarbonite). 2- Class I Division II (Stainless). 3- NEMA 7 Control Panel