⚡ 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

60 Amp Cable Size at 25 Meters (690V Three-Phase (Wind / Heavy Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 60 A over 25 m (82.0 ft).

Copper Cable (≤3% Drop)16 mm²Drop: 3.47V (0.5%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 3.67V (0.53%)
Voltage at Load686.5 VLine Loss: 361.1 W
Max Power & Breaker71.71 kW60A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 60A at 25m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A37.07 V (5.37%)652.9 V61.14 V (8.86%)3852.0 WDrop High
2.5 mm²24 A18 A22.24 V (3.22%)667.8 V36.68 V (5.32%)2311.2 WDrop High
4 mm²32 A25 A13.9 V (2.01%)676.1 V22.93 V (3.32%)1444.5 WDrop High
6 mm²41 A32 A9.27 V (1.34%)680.7 V15.29 V (2.22%)963.0 WDrop High
10 mm²57 A44 A5.56 V (0.81%)684.4 V9.17 V (1.33%)577.8 WDrop High
16 mm²76 A59 A3.47 V (0.5%)686.5 V5.73 V (0.83%)361.1 W✓ OK (≤3%)
25 mm²101 A78 A2.22 V (0.32%)687.8 V3.67 V (0.53%)231.1 W✓ OK (≤3%)
35 mm²125 A97 A1.59 V (0.23%)688.4 V2.62 V (0.38%)165.1 W✓ OK (≤3%)
50 mm²151 A118 A1.11 V (0.16%)688.9 V1.83 V (0.27%)115.6 W✓ OK (≤3%)
70 mm²192 A150 A0.79 V (0.12%)689.2 V1.31 V (0.19%)82.5 W✓ OK (≤3%)
95 mm²232 A181 A0.59 V (0.08%)689.4 V0.97 V (0.14%)60.8 W✓ OK (≤3%)
120 mm²269 A210 A0.46 V (0.07%)689.5 V0.76 V (0.11%)48.1 W✓ OK (≤3%)
150 mm²309 A241 A0.37 V (0.05%)689.6 V0.61 V (0.09%)38.5 W✓ OK (≤3%)
185 mm²353 A275 A0.3 V (0.04%)689.7 V0.5 V (0.07%)31.2 W✓ OK (≤3%)
240 mm²415 A324 A0.23 V (0.03%)689.8 V0.38 V (0.06%)24.1 W✓ OK (≤3%)
300 mm²477 A372 A0.19 V (0.03%)689.8 V0.31 V (0.04%)19.3 W✓ OK (≤3%)
400 mm²570 A445 A0.14 V (0.02%)689.9 V0.23 V (0.03%)14.4 W✓ OK (≤3%)

FAQ — 60 Amp Cable Size at 25 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 60A at 25 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 60A over 25m at 690V (voltage drop: 3.47V or 0.5%).

What is the power capacity of 60A at 690V?

At unity power factor, 60A at 690V supports 71.71 kW with a standard 60A circuit breaker.