APPLIANCE WIRING MATERIAL
Subj.758 Section 2 Page 21957 Issued:2014-05-15
Revised:2019-11-13
Style 21957 Multiple-Conductor Cable using Non-Integral Jacket

Rating80 deg C, 30 Vac, VW-1 flame (construction A), Horizontal Flame (construction B).
Conductor40 AWG min., solid or stranded.
InsulationLabeled or complying with Manufacturer's AWM Procedure.
AssemblyConsists of two or more conductors, twisted pairs, parallel pairs, or groups of twisted conductors or parallel pairs twisted together. The conductors or groups of conductors may be laid parallel forming a flat, oval or round cable. The lay of the insulated conductors are 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 - Extruded PVC, 6 mil or heavier covering; extruded over the insulated conductor, over one or more groups of conductors, or over the entire cable assembly.
JacketExtruded FRPE
Diameter of assembly - inchesAverage thickness - milsMinimum thickness at any point - mils
0.350 or less2520
0.351-0.7003024
0.701-1.0004032
1.001-1.5005443
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseConstruction A: Internal wiring, rated VW-1, in Class 2 circuits only. Construction B: Internal wiring in Class 2 circuits only.

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