⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-24)
⚡ IEC 60364-5-52 · DIN VDE · NEK 400 · SS 436 40 00

50 Amp Cable Size at 5 Meters (230V Single-Phase (IEC Europe / UK / AU))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 50 A over 5 m (16.4 ft).

Copper Cable (≤3% Drop)10 mm²Drop: 1.07V (0.47%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 1.1V (0.48%)
Voltage at Load228.9 VLine Loss: 53.5 W
Max Power & Breaker11.5 kW50A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 50A at 5m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A7.13 V (3.1%)222.9 V11.77 V (5.12%)356.7 WDrop High
2.5 mm²24 A18 A4.28 V (1.86%)225.7 V7.06 V (3.07%)214.0 WDrop High
4 mm²32 A25 A2.67 V (1.16%)227.3 V4.41 V (1.92%)133.8 WDrop High
6 mm²41 A32 A1.78 V (0.78%)228.2 V2.94 V (1.28%)89.2 WDrop High
10 mm²57 A44 A1.07 V (0.47%)228.9 V1.76 V (0.77%)53.5 W✓ OK (≤3%)
16 mm²76 A59 A0.67 V (0.29%)229.3 V1.1 V (0.48%)33.4 W✓ OK (≤3%)
25 mm²101 A78 A0.43 V (0.19%)229.6 V0.71 V (0.31%)21.4 W✓ OK (≤3%)
35 mm²125 A97 A0.31 V (0.13%)229.7 V0.5 V (0.22%)15.3 W✓ OK (≤3%)
50 mm²151 A118 A0.21 V (0.09%)229.8 V0.35 V (0.15%)10.7 W✓ OK (≤3%)
70 mm²192 A150 A0.15 V (0.07%)229.8 V0.25 V (0.11%)7.6 W✓ OK (≤3%)
95 mm²232 A181 A0.11 V (0.05%)229.9 V0.19 V (0.08%)5.6 W✓ OK (≤3%)
120 mm²269 A210 A0.09 V (0.04%)229.9 V0.15 V (0.06%)4.5 W✓ OK (≤3%)
150 mm²309 A241 A0.07 V (0.03%)229.9 V0.12 V (0.05%)3.6 W✓ OK (≤3%)
185 mm²353 A275 A0.06 V (0.03%)229.9 V0.1 V (0.04%)2.9 W✓ OK (≤3%)
240 mm²415 A324 A0.04 V (0.02%)230.0 V0.07 V (0.03%)2.2 W✓ OK (≤3%)
300 mm²477 A372 A0.04 V (0.02%)230.0 V0.06 V (0.03%)1.8 W✓ OK (≤3%)
400 mm²570 A445 A0.03 V (0.01%)230.0 V0.04 V (0.02%)1.3 W✓ OK (≤3%)

FAQ — 50 Amp Cable Size at 5 Meters (230V Single-Phase (IEC Europe / UK / AU))

What mm² cable size is required for 50A at 5 meters (230V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10 mm² copper cable for 50A over 5m at 230V (voltage drop: 1.07V or 0.47%).

What is the power capacity of 50A at 230V?

At unity power factor, 50A at 230V supports 11.5 kW with a standard 50A circuit breaker.