APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 20789 Issued:1993-04-15
Revised:2012-03-22
Style 20789 Multiple-Conductor Cable Using Non-Integral Jacket

Rating105 deg C, 30 Vac, Cable flame for Construction A, Horizontal flame for Construction B.
Conductor40 AWG minimum.
InsulationLabeled or complying with Manufacturer's AWM Procedure.
AssemblyTwo or more conductors, twisted pairs of groups of twisted conductors twisted together. The conductors or groups of conductors may be laid parallel forming a flat, oval or round cable. The lay of the conductors is not specified. A barrier layer and/or fillers are optional. Manufacturer shall maintain a complete description of each assembly. May use same or mixed AWG size.
ShieldOptional.
CoveringOptional. A 6 mil thick or heavier PVC covering may be extruded over the conductor assembly.
JacketExtruded PVC.
Construction A External UseConstruction B Internal Use
Diameter of cable under jacketMinimum average thickness in milsMinimum thickness at any point in milsMinimum average thickness in milsMinimum thickness at any point in mils
0.350 inch or less20171512
0.351-0.700 inch30243024
0.701-1.000 inch40364036
1.001-1.500 inch54485448
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseConstruction A: Internal wiring or external interconnection of electronic equipment in Class 2 circuits only. Construction B: Internal wiring of electronic equipment in Class 2 circuits only.

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