63 Amp Cable Size at 80 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 63 A over 80 m (262.5 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 0.72V (3.0%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.89V (3.71%)
Voltage at Load23.3 VLine Loss: 45.3 W
Max Power & Breaker1.51 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A at 80m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 143.81 V (599.2%) | 0.0 V | 237.22 V (988.4%) | 9059.9 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 86.28 V (359.52%) | 0.0 V | 142.33 V (593.04%) | 5435.9 W | Drop High |
| 4 mm² | 32 A | 25 A | 53.93 V (224.7%) | 0.0 V | 88.96 V (370.65%) | 3397.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 35.95 V (149.8%) | 0.0 V | 59.3 V (247.1%) | 2265.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 21.57 V (89.88%) | 2.4 V | 35.58 V (148.26%) | 1359.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 13.48 V (56.17%) | 10.5 V | 22.24 V (92.66%) | 849.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 8.63 V (35.95%) | 15.4 V | 14.23 V (59.3%) | 543.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 6.16 V (25.68%) | 17.8 V | 10.17 V (42.36%) | 388.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 4.31 V (17.98%) | 19.7 V | 7.12 V (29.65%) | 271.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 3.08 V (12.84%) | 20.9 V | 5.08 V (21.18%) | 194.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 2.27 V (9.46%) | 21.7 V | 3.75 V (15.61%) | 143.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 1.8 V (7.49%) | 22.2 V | 2.97 V (12.35%) | 113.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 1.44 V (5.99%) | 22.6 V | 2.37 V (9.88%) | 90.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 1.17 V (4.86%) | 22.8 V | 1.92 V (8.01%) | 73.5 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 0.9 V (3.75%) | 23.1 V | 1.48 V (6.18%) | 56.6 W | ~ ≤5% |
| 300 mm² | 477 A | 372 A | 0.72 V (3.0%) | 23.3 V | 1.19 V (4.94%) | 45.3 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.54 V (2.25%) | 23.5 V | 0.89 V (3.71%) | 34.0 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 80 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 63A at 80 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 63A over 80m at 24V (voltage drop: 0.72V or 3.0%).
What is the power capacity of 63A at 24V?
At unity power factor, 63A at 24V supports 1.51 kW with a standard 63A circuit breaker.
Related Lengths & Currents (24V)
63A · 5m (24V)63A · 10m (24V)63A · 15m (24V)63A · 20m (24V)63A · 25m (24V)63A · 30m (24V)63A · 35m (24V)63A · 40m (24V)63A · 45m (24V)63A · 50m (24V)63A · 60m (24V)63A · 70m (24V)10A · 80m (24V)16A · 80m (24V)20A · 80m (24V)25A · 80m (24V)32A · 80m (24V)40A · 80m (24V)50A · 80m (24V)80A · 80m (24V)100A · 80m (24V)125A · 80m (24V)160A · 80m (24V)200A · 80m (24V)