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Rating | 150 deg C, 600 Vac, Horizontal flame. |
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Conductor | 20 AWG - 4/0 AWG, solid or stranded. Shall be metal-coated. |
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Insulation | Extruded SR. |
| Conductor size AWG | Minimum average thickness (mils) | Minimum thickness at any point (mils) |
| 20-8 | 40 | 36 |
| 6-4 | 55 | 50 |
| 3-1/0 | 70 | 63 |
| 2/0-4/0 | 90 | 81 |
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Covering | Same as for Type SFF-1 fixture wire except covered with two layers of glass braid. |
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Standard | Appliance Wiring Material UL 758. |
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Marking | General. |
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Use | Internal Wiring of Appliances. |
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