APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 20621 Issued:1989-08-07
Revised:2019-11-07
Style 20621 Multiple-conductor cable using non-integral jacket

Rating60 deg C, 30 Vac, Cable flame.
Conductor40 AWG minimum. Material not specified.
InsulationLabeled or complies with manufacturer's Procedure for use Statement No. 2A or 2B. Insulation materials not specified for Use Statement No. 1A and 1B.
AssemblyTwo or more twisted singles or groups of twisted singles twisted together or groups may be laid parallel to form flat, oval, or round cables. Lay not specified. Barrier layer and/or fillers optional. May use same or mixed AWG sizes. Manufacturer shall maintain a complete description of each assembly.
Shield(Optional). May be over one or more of the insulated conductors or applied over the assembly.
CoveringOptional - PVC, 5 mils minimum at any point, over the assembly or groups of singles.
JacketPUR
dia of cable under jacket
0.250 inches or less*15 mils min average12 mils minimum at any point
0.251-0.424 in30 avg27 min
0.425-0.700 in60 avg48 min
0.701-1.500 in80 avg64 min
1.501-2.500 in110 avg88 min
2.501 in or larger140 avg112 min
*Major dia if flat or oval construction.
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseNo. 1A Internal wiring in Class 2 circuits of electronic equipment where each end is ter- minated 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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