APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 20121 Issued:1981-05-27
Revised:2012-07-24
Style 20121 Multiple-conductor cable using non-integral jacket

Rating80 deg C, 30 Vac, Horizontal flame for Construction A, Cable flame for Construction B.
Conductor40 AWG minimum.
InsulationLabeled or complying with Manufacturer's AWM Procedure having minimum rating of 80 deg C, 30 Vac.
AssemblyConsists of two or more conductors, twisted pairs or 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. Consists of two or more conductors, twisted pairs or 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.
ShieldOptional.
CoveringOptional - PVC Covering, 3 mils minimum at any point may be extruded over shielded or unshielded twisted singles, individual groups of twisted singles, or the complete insulated conductor assembly.
JacketPVC.
Construction A Internal UseConstruction B External Use
Dia of cable under jacketMinimum averageMinimum at any pointMinimum averageMinimum at any point
0.350 inch or less15 mils12 mils30 mils24 mils
0.351-0.700 inch30 mils24 mils30 mils24 mils
0.701-1.000 inch40 mils36 mils40 mils36 mils
1.001-1.500 inch54 mils48 mils54 mils48 mils
*Major dia if cable is flat or oval.
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseInternal or External Wiring use.

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