Subj.758 Section 1 Page 1331 Issued:1963-02-04
Style 1331 Single conductor with extruded insulation

Rating150 deg C, 600 Vac, Horizontal flame. Optional - 60 deg C or 80 deg C Oil, Gasoline Resistant.
Conductor30 AWG - 4/0 AWG solid or stranded or Litz cable conductor consists of magnet wire, R/C (OBMW2), rated a minimum of 150 deg C. Each single magnet wire strand is cabled together with the other magnet wire strands to form a conductor. AWG size to be determined by DC Resistance Test.
InsulationExtruded FEP.
Conductor sizeMinimum average thicknessMinimum thickness at any point
30-10 AWG20 mils18 mils
8-2 AWG30 mils27 mils
1-4/0 AWG45 mils40 mils
CoveringOptional - Extruded FEP, 2 mils minimum thickness, or glass braid, 7 mils minimum thickness.
StandardAppliance Wiring Material UL 758.
UseInternal wiring of appliances. Wires employing Litz conductors shall be plainly marked on the tag or reel as follows: "Litz conductors are manufactured using solderable magnet wire".

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