⚡ 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

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

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 15 A over 200 m (656.2 ft).

Copper Cable (≤3% Drop)6 mm²Drop: 18.53V (2.69%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 18.34V (2.66%)
Voltage at Load671.5 VLine Loss: 481.5 W
Max Power & Breaker17.93 kW15A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 15A at 200m

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%)1926.0 WDrop High
2.5 mm²24 A18 A44.48 V (6.45%)645.5 V73.37 V (10.63%)1155.6 WDrop High
4 mm²32 A25 A27.8 V (4.03%)662.2 V45.86 V (6.65%)722.2 W~ ≤5%
6 mm²41 A32 A18.53 V (2.69%)671.5 V30.57 V (4.43%)481.5 W✓ OK (≤3%)
10 mm²57 A44 A11.12 V (1.61%)678.9 V18.34 V (2.66%)288.9 W✓ OK (≤3%)
16 mm²76 A59 A6.95 V (1.01%)683.1 V11.46 V (1.66%)180.6 W✓ OK (≤3%)
25 mm²101 A78 A4.45 V (0.64%)685.6 V7.34 V (1.06%)115.6 W✓ OK (≤3%)
35 mm²125 A97 A3.18 V (0.46%)686.8 V5.24 V (0.76%)82.5 W✓ OK (≤3%)
50 mm²151 A118 A2.22 V (0.32%)687.8 V3.67 V (0.53%)57.8 W✓ OK (≤3%)
70 mm²192 A150 A1.59 V (0.23%)688.4 V2.62 V (0.38%)41.3 W✓ OK (≤3%)
95 mm²232 A181 A1.17 V (0.17%)688.8 V1.93 V (0.28%)30.4 W✓ OK (≤3%)
120 mm²269 A210 A0.93 V (0.13%)689.1 V1.53 V (0.22%)24.1 W✓ OK (≤3%)
150 mm²309 A241 A0.74 V (0.11%)689.3 V1.22 V (0.18%)19.3 W✓ OK (≤3%)
185 mm²353 A275 A0.6 V (0.09%)689.4 V0.99 V (0.14%)15.6 W✓ OK (≤3%)
240 mm²415 A324 A0.46 V (0.07%)689.5 V0.76 V (0.11%)12.0 W✓ OK (≤3%)
300 mm²477 A372 A0.37 V (0.05%)689.6 V0.61 V (0.09%)9.6 W✓ OK (≤3%)
400 mm²570 A445 A0.28 V (0.04%)689.7 V0.46 V (0.07%)7.2 W✓ OK (≤3%)

FAQ — 15 Amp Cable Size at 200 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 15A at 200 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6 mm² copper cable for 15A over 200m at 690V (voltage drop: 18.53V or 2.69%).

What is the power capacity of 15A at 690V?

At unity power factor, 15A at 690V supports 17.93 kW with a standard 15A circuit breaker.