110 Amp Cable Size at 20 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 110 A over 20 m (65.6 ft).
Copper Cable (≤3% Drop)150 mm²Drop: 0.63V (2.62%)
Aluminum Cable (≤3% Drop)240 mm²Drop: 0.65V (2.7%)
Voltage at Load23.4 VLine Loss: 69.1 W
Max Power & Breaker2.64 kW110A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 110A at 20m
| 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 | 62.77 V (261.56%) | 0.0 V | 103.55 V (431.44%) | 6905.1 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 37.66 V (156.93%) | 0.0 V | 62.13 V (258.87%) | 4143.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 23.54 V (98.08%) | 0.5 V | 38.83 V (161.79%) | 2589.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 15.69 V (65.39%) | 8.3 V | 25.89 V (107.86%) | 1726.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 9.42 V (39.23%) | 14.6 V | 15.53 V (64.72%) | 1035.8 W | Drop High |
| 16 mm² | 76 A | 59 A | 5.88 V (24.52%) | 18.1 V | 9.71 V (40.45%) | 647.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.77 V (15.69%) | 20.2 V | 6.21 V (25.89%) | 414.3 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.69 V (11.21%) | 21.3 V | 4.44 V (18.49%) | 295.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.88 V (7.85%) | 22.1 V | 3.11 V (12.94%) | 207.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.35 V (5.6%) | 22.7 V | 2.22 V (9.25%) | 148.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 0.99 V (4.13%) | 23.0 V | 1.63 V (6.81%) | 109.0 W | ~ ≤5% |
| 120 mm² | 269 A | 210 A | 0.78 V (3.27%) | 23.2 V | 1.29 V (5.39%) | 86.3 W | ~ ≤5% |
| 150 mm² | 309 A | 241 A | 0.63 V (2.62%) | 23.4 V | 1.04 V (4.31%) | 69.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.51 V (2.12%) | 23.5 V | 0.84 V (3.5%) | 56.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.39 V (1.63%) | 23.6 V | 0.65 V (2.7%) | 43.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.31 V (1.31%) | 23.7 V | 0.52 V (2.16%) | 34.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.24 V (0.98%) | 23.8 V | 0.39 V (1.62%) | 25.9 W | ✓ OK (≤3%) |
FAQ — 110 Amp Cable Size at 20 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 110A at 20 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 150 mm² copper cable for 110A over 20m at 24V (voltage drop: 0.63V or 2.62%).
What is the power capacity of 110A at 24V?
At unity power factor, 110A at 24V supports 2.64 kW with a standard 110A circuit breaker.
Related Lengths & Currents (24V)
110A · 5m (24V)110A · 10m (24V)110A · 15m (24V)110A · 25m (24V)110A · 30m (24V)110A · 35m (24V)110A · 40m (24V)110A · 45m (24V)110A · 50m (24V)110A · 60m (24V)110A · 70m (24V)10A · 20m (24V)16A · 20m (24V)20A · 20m (24V)25A · 20m (24V)32A · 20m (24V)40A · 20m (24V)50A · 20m (24V)63A · 20m (24V)80A · 20m (24V)100A · 20m (24V)125A · 20m (24V)160A · 20m (24V)200A · 20m (24V)