APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 20481 Issued:1986-06-17
Revised:2011-10-09
Style 20481 Multi-conductor Cable with Extruded Non-Integral Jacket.

Rating60 deg C, 30 Vac, Horizontal flame.
Conductor40 AWG minimum.
InsulationUse No. 1A and 1B - Material not specified. Use No. 2A and 2B - Labeled or complies with manufacturer's Procedure.
AssemblyTwo or more insulated singles or groups of insulated singles twisted together. Lay not specified. Barrier layer and/or fillers optional. Manufacturer shall maintain a complete description of each assembly.
ShieldOptional. May be over one or more of the insulated conductors or applied over the assembly.
FillerOptional.
CoveringOptional. Extruded PVC, 5 mils minimum thickness at any point.
JacketExtruded PVC
Diameter of core assembly under jacketMinimum average thicknessMinimum thickness at any point
0.250 inches or less15 mils12 mils
0.251-0.424 inches30 mils27 mils
0.425-0.700 inches60 mils48 mils
0.701-1.000 inches80 mils64 mils
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseUse No. 1A - Internal wiring in Class 2 circuits of electronic equipment where each end is terminated in connectors. or Use No. 1B - Cables using 30 mils or greater jacket thickness only: external interconnection or internal wiring in Class 2 circuits of electronic equipment where each end is terminated in connectors. Use No. 2A - Internal wiring in Class 2 circuits of electronic equipment or external interconnection in Class 2 circuits of electronic equipment where not routed along walls, floors, or other abuse areas. or Use No. 2B - Cables using 30 mils or greater jacket thickness only: external interconnection or internal wiring in Class 2 circuits of electronic equipment.

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