UF-B dimensions
Nominal calculation, not one manufacturer's datasheet. The conductors are NEC Chapter 9 Table 8; the insulation, nylon and jacket walls and the ground are the values the makers print, and the web of jacket between the conductors is fitted to three makers' widths, because UL 493 was not read. Check the datasheet before you specify or order.
Each row is one UF-B size in copper at 600 V: the conductor from NEC Table 8, the walls as the makers catalogue them. Open a row for every layer and its source. What UF-B means, letter by letter.
North American building wire, 600 V (AWG / kcmil) · 10 sizes
| Size | Rating | Insulation mm | Overall diameter mm | Weight (approximate) kg/km |
|---|---|---|---|---|
| 14/2 | 600 V | 0.38 | 10.3 × 4.6 | 110 |
| 12/2 | 600 V | 0.38 | 11.6 × 5.1 | 150 |
| 10/2 | 600 V | 0.51 | 13.7 × 5.8 | 220 |
| 8/2 | 600 V | 0.76 | 17.2 × 7.8 | 340 |
| 6/2 | 600 V | 0.76 | 19.4 × 9.1 | 470 |
| 14/3 | 600 V | 0.38 | 14.9 × 4.6 | 160 |
| 12/3 | 600 V | 0.38 | 16.6 × 5.1 | 210 |
| 10/3 | 600 V | 0.51 | 19.5 × 5.8 | 310 |
| 8/3 | 600 V | 0.76 | 24.6 × 7.8 | 490 |
| 6/3 | 600 V | 0.76 | 27.7 × 9.1 | 680 |