Our FX-4 14 gauge cable is part of our Marine Wire, Boat Cable & Shipboard line of Wire & Cable. FX-4 is composed of a 19/27 stranded tinned copper conductor with cross-linked polyalkene insulation and a halogen-free (LSZH) cross-linked polyolefin (XLPO) jacket. These cables are rated for a voltage of 600 volts, an ampacity of 17 at 50°, and have a maximum temperature of 150°. FX cables are unarmored, lightweight, non-flexing power cables.