16 Amp Cable Size at 15 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 16 A over 15 m (49.2 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 0.64V (2.67%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 0.68V (2.82%)
Voltage at Load23.4 VLine Loss: 10.3 W
Max Power & Breaker0.38 kW16A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 16A at 15m
| 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 | 6.85 V (28.53%) | 17.2 V | 11.3 V (47.07%) | 109.6 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4.11 V (17.12%) | 19.9 V | 6.78 V (28.24%) | 65.7 W | Drop High |
| 4 mm² | 32 A | 25 A | 2.57 V (10.7%) | 21.4 V | 4.24 V (17.65%) | 41.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 1.71 V (7.13%) | 22.3 V | 2.82 V (11.77%) | 27.4 W | Drop High |
| 10 mm² | 57 A | 44 A | 1.03 V (4.28%) | 23.0 V | 1.69 V (7.06%) | 16.4 W | ~ ≤5% |
| 16 mm² | 76 A | 59 A | 0.64 V (2.67%) | 23.4 V | 1.06 V (4.41%) | 10.3 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 0.41 V (1.71%) | 23.6 V | 0.68 V (2.82%) | 6.6 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 0.29 V (1.22%) | 23.7 V | 0.48 V (2.02%) | 4.7 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.21 V (0.86%) | 23.8 V | 0.34 V (1.41%) | 3.3 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.15 V (0.61%) | 23.9 V | 0.24 V (1.01%) | 2.3 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.11 V (0.45%) | 23.9 V | 0.18 V (0.74%) | 1.7 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.09 V (0.36%) | 23.9 V | 0.14 V (0.59%) | 1.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.07 V (0.29%) | 23.9 V | 0.11 V (0.47%) | 1.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.06 V (0.23%) | 23.9 V | 0.09 V (0.38%) | 0.9 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.04 V (0.18%) | 24.0 V | 0.07 V (0.29%) | 0.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.03 V (0.14%) | 24.0 V | 0.06 V (0.24%) | 0.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.03 V (0.11%) | 24.0 V | 0.04 V (0.18%) | 0.4 W | ✓ OK (≤3%) |
FAQ — 16 Amp Cable Size at 15 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 16A at 15 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 16A over 15m at 24V (voltage drop: 0.64V or 2.67%).
What is the power capacity of 16A at 24V?
At unity power factor, 16A at 24V supports 0.38 kW with a standard 16A circuit breaker.
Related Lengths & Currents (24V)
16A · 5m (24V)16A · 10m (24V)16A · 20m (24V)16A · 25m (24V)16A · 30m (24V)16A · 35m (24V)16A · 40m (24V)16A · 45m (24V)16A · 50m (24V)16A · 60m (24V)16A · 70m (24V)10A · 15m (24V)20A · 15m (24V)25A · 15m (24V)32A · 15m (24V)40A · 15m (24V)50A · 15m (24V)63A · 15m (24V)80A · 15m (24V)100A · 15m (24V)125A · 15m (24V)160A · 15m (24V)200A · 15m (24V)