MC dimensions
Nominal calculation, not one manufacturer's datasheet. The conductors are NEC Chapter 9 Table 8; the THHN walls, the ground and the jacket are the values the makers print, and the armour band is derived from five makers' diameters, because UL 1569 was not read. Cables of the same name differ by up to 15 % over the armour: check the datasheet before you specify or order.
Each row is one MC 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 MC means, letter by letter.
North American building wire, 600 V (AWG / kcmil) · 23 sizes
| Size | Rating | Insulation mm | Overall diameter mm | Weight (approximate) kg/km |
|---|---|---|---|---|
| 14/2 | 600 V | 0.38 | 11.4 | 120 |
| 12/2 | 600 V | 0.38 | 12.3 | 160 |
| 10/2 | 600 V | 0.51 | 14.0 | 230 |
| 14/3 | 600 V | 0.38 | 12.0 | 140 |
| 12/3 | 600 V | 0.38 | 13.1 | 200 |
| 10/3 | 600 V | 0.51 | 15.0 | 290 |
| 8/3 | 600 V | 0.76 | 18.2 | 430 |
| 6/3 | 600 V | 0.76 | 20.7 | 630 |
| 4/3 | 600 V | 1.02 | 24.3 | 910 |
| 3/3 | 600 V | 1.02 | 26.1 | 1,140 |
| 2/3 | 600 V | 1.02 | 27.7 | 1,350 |
| 1/3 | 600 V | 1.27 | 30.9 | 1,670 |
| 3C 1/0 AWG | 600 V | 1.27 | 31.8 | 1,980 |
| 3C 2/0 AWG | 600 V | 1.27 | 34.2 | 2,400 |
| 3C 3/0 AWG | 600 V | 1.27 | 37.0 | 3,000 |
| 3C 4/0 AWG | 600 V | 1.27 | 40.0 | 3,660 |
| 3C 250 kcmil | 600 V | 1.52 | 43.8 | 4,320 |
| 3C 300 kcmil | 600 V | 1.52 | 46.7 | 5,120 |
| 3C 350 kcmil | 600 V | 1.52 | 49.4 | 5,860 |
| 3C 400 kcmil | 600 V | 1.52 | 51.9 | 6,620 |
| 3C 500 kcmil | 600 V | 1.52 | 56.4 | 8,150 |
| 3C 600 kcmil | 600 V | 1.78 | 61.8 | 9,740 |
| 3C 750 kcmil | 600 V | 1.78 | 67.4 | 12,030 |