Switchboard Wire, 10/1 (105 STR)TC, SIS, 90C Yellow, VW-1

SIS wire, also known as switchboard or panelboard wire, is a type of hook-up wire that is specifically designed for use in switchboards, control panels, and other high-voltage industrial applications. It features a solid or stranded tinned copper conductor and is insulated with XLPE (Cross-Linked Polyethylene), which offers excellent resistance to heat, moisture, and voltage stress.