APPLIANCE WIRING MATERIAL
Subj.758 Section 4 Page 4637 Issued:2019-09-23
Revised:2019-10-07
Style 4637 Multiple-conductor cable using extruded non-integral jacket

Rating150 deg C,no voltage specified, Cable flame.
Conductor40 AWG Minimum, solid or stranded.
InsulationExtruded PFA, 15 mils min. avg, 13 mils min. at any point, or labeled or complying with Manufacturer's AWM procedure having a minimum rating of 150C.
AssemblyTwo or more conductors or groups of conductors laid parallel or twisted forming a flat, oval or round cable. The lay of conductors is not specified. A barrier layer and/or fillers are optional. May Use same or mixed AWG size.
Shieldoptional
Coveringoptional
JacketExtruded SR
Diameter of cable under jacket (inches)Minimum average thickness (mils)Minimum thickness at any point (mils)
0.425 or less3633
0.426-0.7004536
0.701-1.5006048
StandardAppliance Wiring Material UL 758.
MarkingGeneral.
UseExternal or Internal Wiring.

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