SER dimensions
Nominal calculation, not one manufacturer's datasheet. The conductors are compact aluminium as Southwire prints them; the XHHW-2 walls, the jacket and the ground are the values the makers print, because UL 854 was not read. Seven makers' cables of the same name differ by up to 20 % in diameter: check the datasheet before you specify or order.
Each row is one SER 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 SER means, letter by letter.
North American building wire, 600 V (AWG / kcmil) · 17 sizes
| Size | Rating | Insulation mm | Overall diameter mm | Weight (approximate) kg/km |
|---|---|---|---|---|
| 8-8-8-8 | 600 V | 1.14 | 14.7 | 190 |
| 6-6-6 | 600 V | 1.14 | 14.9 | 200 |
| 6-6-6-6 | 600 V | 1.14 | 16.8 | 270 |
| 4-4-6 | 600 V | 1.14 | 17.1 | 260 |
| 4-4-4-6 | 600 V | 1.14 | 19.2 | 350 |
| 2-2-2-4 | 600 V | 1.14 | 22.4 | 510 |
| 2-2-2-2-4 | 600 V | 1.14 | 25.1 | 640 |
| 1-1-1-3 | 600 V | 1.40 | 25.5 | 640 |
| 1/0-1/0-1/0-2 | 600 V | 1.40 | 27.6 | 770 |
| 2/0-2/0-2/0-1 | 600 V | 1.40 | 29.9 | 940 |
| 2/0-2/0-2/0-2/0-1 | 600 V | 1.40 | 33.5 | 1,190 |
| 3/0-3/0-3/0-1/0 | 600 V | 1.40 | 32.7 | 1,140 |
| 4/0-4/0-2/0 | 600 V | 1.40 | 31.4 | 1,020 |
| 4/0-4/0-4/0-2/0 | 600 V | 1.40 | 35.8 | 1,400 |
| 4/0-4/0-4/0-4/0-2/0 | 600 V | 1.40 | 40.1 | 1,770 |
| 250-250-250-3/0 | 600 V | 1.65 | 39.6 | 1,680 |
| 250-250-250-250-3/0 | 600 V | 1.65 | 44.4 | 2,130 |