MC 10/3 600 V
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.
By NEC Table 8 and the catalogued walls, MC 10/3 600 V comes to an overall diameter of about 15.0 mm and a weight of about 290 kg/km.
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Main dimensions
| Conductor | Copper 10 AWG (5.3 mm²), Ø 2.6 mm | NEC 2026 Chapter 9 Table 8: Class B concentric or solid diameter |
|---|---|---|
| Insulation | PVC 0.51 mm | MC conductor PVC insulation: the THHN / THWN-2 band of its size (Southwire SPEC 60103 / 60300 print it; UL 1569 not read) |
| Diameter over insulation | 3.6 mm | |
| Core diameter | 3.8 mm | |
| Overall diameter | 15.0 mm | |
| Weight (approximate) | 290 kg/km |
Layer by layer (inside out)
| # | Layer | Material | Thickness mm | Ø over mm | Source | How firmly |
|---|---|---|---|---|---|---|
| 1 | Insulation | PVC | 0.51 | 3.6 (on each core) | MC conductor PVC insulation: the THHN / THWN-2 band of its size (Southwire SPEC 60103 / 60300 print it; UL 1569 not read) | maker catalogue value, standard text not read |
| 2 | Nylon jacket (polyamide) | Nylon (PA) | 0.10 | 3.8 (on each core) | MC conductor nylon jacket: the THHN / THWN-2 band (UL 1569 not read) | maker catalogue value, standard text not read |
| 3 | Ground conductor: Insulation | PVC | 0.51 | 3.6 | MC conductor PVC insulation: the THHN / THWN-2 band of its size (Southwire SPEC 60103 / 60300 print it; UL 1569 not read) | maker catalogue value, standard text not read |
| 4 | Ground conductor: Nylon jacket (polyamide) | Nylon (PA) | 0.10 | 3.8 | MC conductor nylon jacket: the THHN / THWN-2 band (UL 1569 not read) | maker catalogue value, standard text not read |
| 5 | Separation tape | Polyester | 0.10 | 9.4 | typical polyester tape | typical value, no rule |
| 6 | Interlocked armour | Aluminium | 2.79 | 15.0 | MC interlocked aluminium armour, radial band 0.110 in (2.79 mm): the median over 400 rows of five makers, the diameter under it computed; no maker prints the strip | maker catalogue value, standard text not read |
Type MC is the UL 1569 metal-clad cable of NEC Article 330: THHN / THWN-2 conductors and a ground (green THHN to 1 AWG, bare copper from 1/0) cabled together under an assembly tape, in interlocked aluminium armour. Checked against Southwire, Atkore AFC, Encore, Cerrowire and Service Wire: research/designer-americas/mc-teck.md in the site repository.
Materials in this cable: Copper, Aluminium, PVC
Weight, by part
| Conductors | 190 kg/km |
| Metal screens and armour | 60 kg/km |
| Insulation, semicon, tapes, fillers and sheaths | 40 kg/km |
| Total | 290 kg/km |
|---|
Each layer's cross-section times its density; stranded conductors, laid-up cores and helical wires count 2 % longer than the cable. Densities: copper 8.89 and aluminium 2.703 g/cm³ (the values of IEC 60028 and IEC 60889); XLPE 0.92, PE 0.94, PVC 1.45, semicon 1.12, steel 7.85 g/cm³ (usual compound values).