One to four conductors, stranded tinned copper of Type BN insulation --.010" wall PVC, clear nylon jacket -- conductors are cabled, braided tinned copper shield, white PVC jacket overall. Cable components meet UL VW-1 vertical flame test requirements, and is resistant to oils, acids solvents, alkalis, moisture fungus. COLOR CODE: 1-White, 2-Black, 3-Red, 4-Green. OPER. TEMP.: -55°C to +105°C. OPER. VOLT.: 600V. STD. P-U: 500', 1000'.