700 Amp Cable Size at 25 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 700 A over 25 m (82.0 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.94V (1.95%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.09V (6.43%)
Voltage at Load47.1 VLine Loss: 655.4 W
Max Power & Breaker33.6 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A at 25m
| 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 | 499.33 V (1040.28%) | 0.0 V | 823.67 V (1715.97%) | 349533.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 299.6 V (624.17%) | 0.0 V | 494.2 V (1029.58%) | 209720.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 187.25 V (390.1%) | 0.0 V | 308.88 V (643.49%) | 131075.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 124.83 V (260.07%) | 0.0 V | 205.92 V (428.99%) | 87383.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 74.9 V (156.04%) | 0.0 V | 123.55 V (257.4%) | 52430.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 46.81 V (97.53%) | 1.2 V | 77.22 V (160.87%) | 32768.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 29.96 V (62.42%) | 18.0 V | 49.42 V (102.96%) | 20972.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 21.4 V (44.58%) | 26.6 V | 35.3 V (73.54%) | 14980.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 14.98 V (31.21%) | 33.0 V | 24.71 V (51.48%) | 10486.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 10.7 V (22.29%) | 37.3 V | 17.65 V (36.77%) | 7490.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 7.88 V (16.43%) | 40.1 V | 13.01 V (27.09%) | 5518.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 6.24 V (13.0%) | 41.8 V | 10.3 V (21.45%) | 4369.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 4.99 V (10.4%) | 43.0 V | 8.24 V (17.16%) | 3495.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.05 V (8.43%) | 44.0 V | 6.68 V (13.91%) | 2834.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.12 V (6.5%) | 44.9 V | 5.15 V (10.72%) | 2184.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.5 V (5.2%) | 45.5 V | 4.12 V (8.58%) | 1747.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.87 V (3.9%) | 46.1 V | 3.09 V (6.43%) | 1310.7 W | Drop High |
FAQ — 700 Amp Cable Size at 25 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 700A at 25 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 700A over 25m at 48V (voltage drop: 0.94V or 1.95%).
What is the power capacity of 700A at 48V?
At unity power factor, 700A at 48V supports 33.6 kW with a standard 700A circuit breaker.
Related Lengths & Currents (48V)
700A · 5m (48V)700A · 10m (48V)700A · 15m (48V)700A · 20m (48V)700A · 30m (48V)700A · 35m (48V)700A · 40m (48V)700A · 45m (48V)700A · 50m (48V)700A · 60m (48V)700A · 70m (48V)10A · 25m (48V)16A · 25m (48V)20A · 25m (48V)25A · 25m (48V)32A · 25m (48V)40A · 25m (48V)50A · 25m (48V)63A · 25m (48V)80A · 25m (48V)100A · 25m (48V)125A · 25m (48V)160A · 25m (48V)200A · 25m (48V)