APPLIANCE WIRING MATERIAL
Subj.758 Section 4 Page 4521 Issued:2004-03-24
Revised:2011-10-11
Style 4521 Multiple-conductor cable using extruded non-integral jacket

Rating90 deg C, 300 Vac, Horizontal flame.
Conductor50 AWG - 12 AWG, stranded wire, and / or synthetic yarns impregnated with conductive materials, metal or carbon coated; strength member.
BufferOptional. Extruded PVC, 3 mils minimum average thickness. Provided between conductor and insulation.
InsulationExtruded XLPE, 7 mils minimum average thickness, 6 mils minimum thicknessat any point, or extruded PVC, 9 mils minimum average thickness, 7 mils minimum thickness at any point.
AssemblyTwo to four conductors.
ShieldOptional.
JacketExtruded PVC, 17 mils minimum average thickness, 13 mils minimum thickness at any point.
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseInternal Wiring, Resistance Heater Cable

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