16 Amp Cable Size at 45 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 45 m (147.6 ft).
Copper Cable (≤3% Drop)50 mm²Drop: 0.62V (2.57%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 0.54V (2.23%)
Voltage at Load23.4 VLine Loss: 9.9 W
Max Power & Breaker0.38 kW16A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 16A at 45m
| 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 | 20.54 V (85.6%) | 3.5 V | 33.89 V (141.2%) | 328.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 12.33 V (51.36%) | 11.7 V | 20.33 V (84.72%) | 197.2 W | Drop High |
| 4 mm² | 32 A | 25 A | 7.7 V (32.1%) | 16.3 V | 12.71 V (52.95%) | 123.3 W | Drop High |
| 6 mm² | 41 A | 32 A | 5.14 V (21.4%) | 18.9 V | 8.47 V (35.3%) | 82.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 3.08 V (12.84%) | 20.9 V | 5.08 V (21.18%) | 49.3 W | Drop High |
| 16 mm² | 76 A | 59 A | 1.93 V (8.03%) | 22.1 V | 3.18 V (13.24%) | 30.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 1.23 V (5.14%) | 22.8 V | 2.03 V (8.47%) | 19.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 0.88 V (3.67%) | 23.1 V | 1.45 V (6.05%) | 14.1 W | ~ ≤5% |
| 50 mm² | 151 A | 118 A | 0.62 V (2.57%) | 23.4 V | 1.02 V (4.24%) | 9.9 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.44 V (1.83%) | 23.6 V | 0.73 V (3.03%) | 7.0 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.32 V (1.35%) | 23.7 V | 0.54 V (2.23%) | 5.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.26 V (1.07%) | 23.7 V | 0.42 V (1.76%) | 4.1 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.21 V (0.86%) | 23.8 V | 0.34 V (1.41%) | 3.3 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.17 V (0.69%) | 23.8 V | 0.27 V (1.14%) | 2.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.13 V (0.53%) | 23.9 V | 0.21 V (0.88%) | 2.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.1 V (0.43%) | 23.9 V | 0.17 V (0.71%) | 1.6 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.08 V (0.32%) | 23.9 V | 0.13 V (0.53%) | 1.2 W | ✓ OK (≤3%) |
FAQ — 16 Amp Cable Size at 45 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 16A at 45 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 16A over 45m at 24V (voltage drop: 0.62V or 2.57%).
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 · 15m (24V)16A · 20m (24V)16A · 25m (24V)16A · 30m (24V)16A · 35m (24V)16A · 40m (24V)16A · 50m (24V)16A · 60m (24V)16A · 70m (24V)10A · 45m (24V)20A · 45m (24V)25A · 45m (24V)32A · 45m (24V)40A · 45m (24V)50A · 45m (24V)63A · 45m (24V)80A · 45m (24V)100A · 45m (24V)125A · 45m (24V)160A · 45m (24V)200A · 45m (24V)