⚡ 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

750 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 750 A over 60 m (196.9 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 2.08V (0.3%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.88V (1.0%)
Voltage at Load687.9 VLine Loss: 2708.4 W
Max Power & Breaker896.34 kW800A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A at 60m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A1111.98 V (161.16%)0.0 V1834.24 V (265.83%)1444500.0 WDrop High
2.5 mm²24 A18 A667.19 V (96.69%)22.8 V1100.55 V (159.5%)866700.0 WDrop High
4 mm²32 A25 A416.99 V (60.43%)273.0 V687.84 V (99.69%)541687.5 WDrop High
6 mm²41 A32 A277.99 V (40.29%)412.0 V458.56 V (66.46%)361125.0 WDrop High
10 mm²57 A44 A166.8 V (24.17%)523.2 V275.14 V (39.87%)216675.0 WDrop High
16 mm²76 A59 A104.25 V (15.11%)585.8 V171.96 V (24.92%)135421.9 WDrop High
25 mm²101 A78 A66.72 V (9.67%)623.3 V110.05 V (15.95%)86670.0 WDrop High
35 mm²125 A97 A47.66 V (6.91%)642.3 V78.61 V (11.39%)61907.1 WDrop High
50 mm²151 A118 A33.36 V (4.83%)656.6 V55.03 V (7.97%)43335.0 WDrop High
70 mm²192 A150 A23.83 V (3.45%)666.2 V39.31 V (5.7%)30953.6 WDrop High
95 mm²232 A181 A17.56 V (2.54%)672.4 V28.96 V (4.2%)22807.9 WDrop High
120 mm²269 A210 A13.9 V (2.01%)676.1 V22.93 V (3.32%)18056.2 WDrop High
150 mm²309 A241 A11.12 V (1.61%)678.9 V18.34 V (2.66%)14445.0 WDrop High
185 mm²353 A275 A9.02 V (1.31%)681.0 V14.87 V (2.16%)11712.2 WDrop High
240 mm²415 A324 A6.95 V (1.01%)683.1 V11.46 V (1.66%)9028.1 WDrop High
300 mm²477 A372 A5.56 V (0.81%)684.4 V9.17 V (1.33%)7222.5 WDrop High
400 mm²570 A445 A4.17 V (0.6%)685.8 V6.88 V (1.0%)5416.9 WDrop High

FAQ — 750 Amp Cable Size at 60 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 750A at 60 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 750A over 60m at 690V (voltage drop: 2.08V or 0.3%).

What is the power capacity of 750A at 690V?

At unity power factor, 750A at 690V supports 896.34 kW with a standard 800A circuit breaker.