4 core electric brake controller cable for wiring an electric trailer brake controller into your tow vehicle. Four colour-coded cores of different gauges are bundled inside one black sheath, so you run a single cable instead of wiring each circuit separately. Manufactured in Mittagong, NSW using oxygen-free copper conductors and V90 PVC insulation to AS/NZS 3808. PVC insulation keeps the cable flexible, making it easier to route through firewalls, chassis rails and tight engine-bay wiring runs. Core breakdown Each of the four cores is a different gauge, sized to what it carries: Core Conductor Current rating Function 6mm red 4.59mm² (57/0.32mm) 48A Power supply 6mm white 4.59mm² (57/0.32mm) 48A Earth 5mm blue 2.90mm² (36/0.32mm) 37A Brake controller output 3mm red 1.13mm² (14/0.32mm) 20A Brake switch input Sold per metre.