110 Amp Cable Size at 120 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 120 m (393.7 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.7V (2.94%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.33V (9.71%)
Voltage at Load23.3 VLine Loss: 77.7 W
Max Power & Breaker2.64 kW110A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 110A at 120m
| 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 | 376.64 V (1569.33%) | 0.0 V | 621.28 V (2588.67%) | 41430.4 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 225.98 V (941.6%) | 0.0 V | 372.77 V (1553.2%) | 24858.2 W | Drop High |
| 4 mm² | 32 A | 25 A | 141.24 V (588.5%) | 0.0 V | 232.98 V (970.75%) | 15536.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 94.16 V (392.33%) | 0.0 V | 155.32 V (647.17%) | 10357.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 56.5 V (235.4%) | 0.0 V | 93.19 V (388.3%) | 6214.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 35.31 V (147.13%) | 0.0 V | 58.24 V (242.69%) | 3884.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 22.6 V (94.16%) | 1.4 V | 37.28 V (155.32%) | 2485.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 16.14 V (67.26%) | 7.9 V | 26.63 V (110.94%) | 1775.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 11.3 V (47.08%) | 12.7 V | 18.64 V (77.66%) | 1242.9 W | Drop High |
| 70 mm² | 192 A | 150 A | 8.07 V (33.63%) | 15.9 V | 13.31 V (55.47%) | 887.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 5.95 V (24.78%) | 18.1 V | 9.81 V (40.87%) | 654.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 4.71 V (19.62%) | 19.3 V | 7.77 V (32.36%) | 517.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.77 V (15.69%) | 20.2 V | 6.21 V (25.89%) | 414.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 3.05 V (12.72%) | 20.9 V | 5.04 V (20.99%) | 335.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.35 V (9.81%) | 21.6 V | 3.88 V (16.18%) | 258.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.88 V (7.85%) | 22.1 V | 3.11 V (12.94%) | 207.2 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.41 V (5.89%) | 22.6 V | 2.33 V (9.71%) | 155.4 W | Drop High |
FAQ — 110 Amp Cable Size at 120 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 110A at 120 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 110A over 120m at 24V (voltage drop: 0.7V or 2.94%).
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 · 20m (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 · 120m (24V)16A · 120m (24V)20A · 120m (24V)25A · 120m (24V)32A · 120m (24V)40A · 120m (24V)50A · 120m (24V)63A · 120m (24V)80A · 120m (24V)100A · 120m (24V)125A · 120m (24V)160A · 120m (24V)200A · 120m (24V)