Subj.758 Section 2 Page 21120 Issued:2000-10-13
Style 21120 Multiconductor cable with extruded non-integral jacket.

Rating80 deg C, 600 Vac, Cable flame.
Conductor40 AWG minimum, solid or stranded.
InsulationLabeled or complying with manufacturer's AWM Procedure.
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. Manufacturers shall maintain a complete description of each assembly. May use same or mixed AWG size.
CoveringOptional. Extruded PVC, 6 mils thickness or heavier, may be extruded over the conductor assembly.
JacketExtruded FRPE
Diameter of core assembly under jacket*Minimum average thicknessMinimum thickness at any point
0.700 inch or less30 mils24 mils
0.701-1.000 inch60 mils48 mils
1.001-1.50 inch80 mils64 mils
* - Major diameter if cable is flat or oval.
StandardAppliance Wiring Material UL 758.
UseExternal interconnection or internal wiring of electrical equipment.

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