Estimate a copper cable size based on current load. This is a quick planning guide and does not replace a professional design.
Back to All CalculatorsEstimated Cable Size: -
Assumes PVC insulated copper cable in typical installation conditions. Adjust for voltage drop, ambient temperature, and grouping.
| Cable Size (mm2) | Typical Current Range (A) |
|---|---|
| 1.5 | Up to 16 |
| 2.5 | Up to 25 |
| 4 | Up to 32 |
| 6 | Up to 40 |
| 10 | Up to 60 |
| 16 | Up to 80 |