Our M22759/16-4, 4 gauge cable is part of our Mil-Spec Wire & Cable line of Wire & Cable. M22759/16-4 is composed of 133/25 stranded tinned copper conductor with ethylene tetrafluoroethylene (ETFE) insulation. These cables are rated for a voltage of 600 volts and have a maximum temperature of 150°C. M22759/16 wires have green or white print on the insulation for identification purposes.