HW154: 600V Power Cable, THHN or THWN-2, PVC/Nylon
HW154 is a UL Type TC-ER, 600 volt tray cable - power cable with THHN or THWN-2 insulation that is commonly used in primary power and feeder circuits for a broad range of industrial and commercial applications.
THHN (Thermoplastic High Heat-resistant Nylon-coated) wire is one of the most popular types of building wire used in commercial and industrial constuction as it is a cost effective alternative compared to other types of building wire such as XHHW building wire.