5 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 5 A over 25 m (82.0 ft).
Copper Cable (≤3% Drop)1.5 mm²Drop: 3.57V (1.55%)
Aluminum Cable (≤3% Drop)1.5 mm²Drop: 5.88V (2.56%)
Voltage at Load226.4 VLine Loss: 17.8 W
Max Power & Breaker1.15 kW6A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 5A 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 | 3.57 V (1.55%) | 226.4 V | 5.88 V (2.56%) | 17.8 W | ✓ OK (≤3%) |
| 2.5 mm² | 24 A | 18 A | 2.14 V (0.93%) | 227.9 V | 3.53 V (1.53%) | 10.7 W | ✓ OK (≤3%) |
| 4 mm² | 32 A | 25 A | 1.34 V (0.58%) | 228.7 V | 2.21 V (0.96%) | 6.7 W | ✓ OK (≤3%) |
| 6 mm² | 41 A | 32 A | 0.89 V (0.39%) | 229.1 V | 1.47 V (0.64%) | 4.5 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 0.53 V (0.23%) | 229.5 V | 0.88 V (0.38%) | 2.7 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 0.33 V (0.15%) | 229.7 V | 0.55 V (0.24%) | 1.7 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 0.21 V (0.09%) | 229.8 V | 0.35 V (0.15%) | 1.1 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 0.15 V (0.07%) | 229.8 V | 0.25 V (0.11%) | 0.8 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.11 V (0.05%) | 229.9 V | 0.18 V (0.08%) | 0.5 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.08 V (0.03%) | 229.9 V | 0.13 V (0.05%) | 0.4 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.06 V (0.02%) | 229.9 V | 0.09 V (0.04%) | 0.3 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.04 V (0.02%) | 230.0 V | 0.07 V (0.03%) | 0.2 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.04 V (0.02%) | 230.0 V | 0.06 V (0.03%) | 0.2 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.03 V (0.01%) | 230.0 V | 0.05 V (0.02%) | 0.1 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.02 V (0.01%) | 230.0 V | 0.04 V (0.02%) | 0.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.02 V (0.01%) | 230.0 V | 0.03 V (0.01%) | 0.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.01 V (0.01%) | 230.0 V | 0.02 V (0.01%) | 0.1 W | ✓ OK (≤3%) |
FAQ — 5 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 5A at 25 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 1.5 mm² copper cable for 5A over 25m at 230V (voltage drop: 3.57V or 1.55%).
What is the power capacity of 5A at 230V?
At unity power factor, 5A at 230V supports 1.15 kW with a standard 6A circuit breaker.
Related Lengths & Currents (230V)
5A · 5m (230V)5A · 10m (230V)5A · 15m (230V)5A · 20m (230V)5A · 30m (230V)5A · 35m (230V)5A · 40m (230V)5A · 45m (230V)5A · 50m (230V)5A · 60m (230V)5A · 70m (230V)10A · 25m (230V)16A · 25m (230V)20A · 25m (230V)25A · 25m (230V)32A · 25m (230V)40A · 25m (230V)50A · 25m (230V)63A · 25m (230V)80A · 25m (230V)100A · 25m (230V)125A · 25m (230V)160A · 25m (230V)200A · 25m (230V)