80 Amp Cable Size at 90 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 80 A over 90 m (295.3 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 1.28V (2.67%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.27V (2.65%)
Voltage at Load46.7 VLine Loss: 102.7 W
Max Power & Breaker3.84 kW80A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 80A at 90m
| 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 | 205.44 V (428.0%) | 0.0 V | 338.88 V (706.0%) | 16435.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 123.26 V (256.8%) | 0.0 V | 203.33 V (423.6%) | 9861.1 W | Drop High |
| 4 mm² | 32 A | 25 A | 77.04 V (160.5%) | 0.0 V | 127.08 V (264.75%) | 6163.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 51.36 V (107.0%) | 0.0 V | 84.72 V (176.5%) | 4108.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 30.82 V (64.2%) | 17.2 V | 50.83 V (105.9%) | 2465.3 W | Drop High |
| 16 mm² | 76 A | 59 A | 19.26 V (40.12%) | 28.7 V | 31.77 V (66.19%) | 1540.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 12.33 V (25.68%) | 35.7 V | 20.33 V (42.36%) | 986.1 W | Drop High |
| 35 mm² | 125 A | 97 A | 8.8 V (18.34%) | 39.2 V | 14.52 V (30.26%) | 704.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 6.16 V (12.84%) | 41.8 V | 10.17 V (21.18%) | 493.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 4.4 V (9.17%) | 43.6 V | 7.26 V (15.13%) | 352.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 3.24 V (6.76%) | 44.8 V | 5.35 V (11.15%) | 259.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 2.57 V (5.35%) | 45.4 V | 4.24 V (8.82%) | 205.4 W | Drop High |
| 150 mm² | 309 A | 241 A | 2.05 V (4.28%) | 45.9 V | 3.39 V (7.06%) | 164.4 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 1.67 V (3.47%) | 46.3 V | 2.75 V (5.72%) | 133.3 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 1.28 V (2.67%) | 46.7 V | 2.12 V (4.41%) | 102.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.03 V (2.14%) | 47.0 V | 1.69 V (3.53%) | 82.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.77 V (1.6%) | 47.2 V | 1.27 V (2.65%) | 61.6 W | ✓ OK (≤3%) |
FAQ — 80 Amp Cable Size at 90 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 80A at 90 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 80A over 90m at 48V (voltage drop: 1.28V or 2.67%).
What is the power capacity of 80A at 48V?
At unity power factor, 80A at 48V supports 3.84 kW with a standard 80A circuit breaker.
Related Lengths & Currents (48V)
80A · 5m (48V)80A · 10m (48V)80A · 15m (48V)80A · 20m (48V)80A · 25m (48V)80A · 30m (48V)80A · 35m (48V)80A · 40m (48V)80A · 45m (48V)80A · 50m (48V)80A · 60m (48V)80A · 70m (48V)10A · 90m (48V)16A · 90m (48V)20A · 90m (48V)25A · 90m (48V)32A · 90m (48V)40A · 90m (48V)50A · 90m (48V)63A · 90m (48V)100A · 90m (48V)125A · 90m (48V)160A · 90m (48V)200A · 90m (48V)