⚡ 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

200 Amp Cable Size at 90 Meters (690V Three-Phase (Wind / Heavy Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 200 A over 90 m (295.3 ft).

Copper Cable (≤3% Drop)95 mm²Drop: 7.02V (1.02%)
Aluminum Cable (≤3% Drop)120 mm²Drop: 9.17V (1.33%)
Voltage at Load683.0 VLine Loss: 2432.8 W
Max Power & Breaker239.02 kW200A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 200A at 90m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A444.79 V (64.46%)245.2 V733.7 V (106.33%)154080.0 WDrop High
2.5 mm²24 A18 A266.87 V (38.68%)423.1 V440.22 V (63.8%)92448.0 WDrop High
4 mm²32 A25 A166.8 V (24.17%)523.2 V275.14 V (39.87%)57780.0 WDrop High
6 mm²41 A32 A111.2 V (16.12%)578.8 V183.42 V (26.58%)38520.0 WDrop High
10 mm²57 A44 A66.72 V (9.67%)623.3 V110.05 V (15.95%)23112.0 WDrop High
16 mm²76 A59 A41.7 V (6.04%)648.3 V68.78 V (9.97%)14445.0 WDrop High
25 mm²101 A78 A26.69 V (3.87%)663.3 V44.02 V (6.38%)9244.8 WDrop High
35 mm²125 A97 A19.06 V (2.76%)670.9 V31.44 V (4.56%)6603.4 WDrop High
50 mm²151 A118 A13.34 V (1.93%)676.7 V22.01 V (3.19%)4622.4 WDrop High
70 mm²192 A150 A9.53 V (1.38%)680.5 V15.72 V (2.28%)3301.7 WDrop High
95 mm²232 A181 A7.02 V (1.02%)683.0 V11.58 V (1.68%)2432.8 W✓ OK (≤3%)
120 mm²269 A210 A5.56 V (0.81%)684.4 V9.17 V (1.33%)1926.0 W✓ OK (≤3%)
150 mm²309 A241 A4.45 V (0.64%)685.6 V7.34 V (1.06%)1540.8 W✓ OK (≤3%)
185 mm²353 A275 A3.61 V (0.52%)686.4 V5.95 V (0.86%)1249.3 W✓ OK (≤3%)
240 mm²415 A324 A2.78 V (0.4%)687.2 V4.59 V (0.66%)963.0 W✓ OK (≤3%)
300 mm²477 A372 A2.22 V (0.32%)687.8 V3.67 V (0.53%)770.4 W✓ OK (≤3%)
400 mm²570 A445 A1.67 V (0.24%)688.3 V2.75 V (0.4%)577.8 W✓ OK (≤3%)

FAQ — 200 Amp Cable Size at 90 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 200A at 90 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 200A over 90m at 690V (voltage drop: 7.02V or 1.02%).

What is the power capacity of 200A at 690V?

At unity power factor, 200A at 690V supports 239.02 kW with a standard 200A circuit breaker.