⚡ 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 60 Meters (690V Three-Phase (Wind / Heavy Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 50 A over 60 m (196.9 ft).

Copper Cable (≤3% Drop)10 mm²Drop: 11.12V (1.61%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 11.46V (1.66%)
Voltage at Load678.9 VLine Loss: 963.0 W
Max Power & Breaker59.76 kW50A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 50A at 60m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A74.13 V (10.74%)615.9 V122.28 V (17.72%)6420.0 WDrop High
2.5 mm²24 A18 A44.48 V (6.45%)645.5 V73.37 V (10.63%)3852.0 WDrop High
4 mm²32 A25 A27.8 V (4.03%)662.2 V45.86 V (6.65%)2407.5 WDrop High
6 mm²41 A32 A18.53 V (2.69%)671.5 V30.57 V (4.43%)1605.0 WDrop High
10 mm²57 A44 A11.12 V (1.61%)678.9 V18.34 V (2.66%)963.0 W✓ OK (≤3%)
16 mm²76 A59 A6.95 V (1.01%)683.1 V11.46 V (1.66%)601.9 W✓ OK (≤3%)
25 mm²101 A78 A4.45 V (0.64%)685.6 V7.34 V (1.06%)385.2 W✓ OK (≤3%)
35 mm²125 A97 A3.18 V (0.46%)686.8 V5.24 V (0.76%)275.1 W✓ OK (≤3%)
50 mm²151 A118 A2.22 V (0.32%)687.8 V3.67 V (0.53%)192.6 W✓ OK (≤3%)
70 mm²192 A150 A1.59 V (0.23%)688.4 V2.62 V (0.38%)137.6 W✓ OK (≤3%)
95 mm²232 A181 A1.17 V (0.17%)688.8 V1.93 V (0.28%)101.4 W✓ OK (≤3%)
120 mm²269 A210 A0.93 V (0.13%)689.1 V1.53 V (0.22%)80.2 W✓ OK (≤3%)
150 mm²309 A241 A0.74 V (0.11%)689.3 V1.22 V (0.18%)64.2 W✓ OK (≤3%)
185 mm²353 A275 A0.6 V (0.09%)689.4 V0.99 V (0.14%)52.1 W✓ OK (≤3%)
240 mm²415 A324 A0.46 V (0.07%)689.5 V0.76 V (0.11%)40.1 W✓ OK (≤3%)
300 mm²477 A372 A0.37 V (0.05%)689.6 V0.61 V (0.09%)32.1 W✓ OK (≤3%)
400 mm²570 A445 A0.28 V (0.04%)689.7 V0.46 V (0.07%)24.1 W✓ OK (≤3%)

FAQ — 50 Amp Cable Size at 60 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 50A at 60 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10 mm² copper cable for 50A over 60m at 690V (voltage drop: 11.12V or 1.61%).

What is the power capacity of 50A at 690V?

At unity power factor, 50A at 690V supports 59.76 kW with a standard 50A circuit breaker.