⚡ 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

35 Amp Cable Size at 5 Meters (690V Three-Phase (Wind / Heavy Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 35 A over 5 m (16.4 ft).

Copper Cable (≤3% Drop)6 mm²Drop: 1.08V (0.16%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 1.07V (0.16%)
Voltage at Load688.9 VLine Loss: 65.5 W
Max Power & Breaker41.83 kW35A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A at 5m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A4.32 V (0.63%)685.7 V7.13 V (1.03%)262.1 WDrop High
2.5 mm²24 A18 A2.59 V (0.38%)687.4 V4.28 V (0.62%)157.3 WDrop High
4 mm²32 A25 A1.62 V (0.24%)688.4 V2.67 V (0.39%)98.3 WDrop High
6 mm²41 A32 A1.08 V (0.16%)688.9 V1.78 V (0.26%)65.5 W✓ OK (≤3%)
10 mm²57 A44 A0.65 V (0.09%)689.4 V1.07 V (0.16%)39.3 W✓ OK (≤3%)
16 mm²76 A59 A0.41 V (0.06%)689.6 V0.67 V (0.1%)24.6 W✓ OK (≤3%)
25 mm²101 A78 A0.26 V (0.04%)689.7 V0.43 V (0.06%)15.7 W✓ OK (≤3%)
35 mm²125 A97 A0.19 V (0.03%)689.8 V0.31 V (0.04%)11.2 W✓ OK (≤3%)
50 mm²151 A118 A0.13 V (0.02%)689.9 V0.21 V (0.03%)7.9 W✓ OK (≤3%)
70 mm²192 A150 A0.09 V (0.01%)689.9 V0.15 V (0.02%)5.6 W✓ OK (≤3%)
95 mm²232 A181 A0.07 V (0.01%)689.9 V0.11 V (0.02%)4.1 W✓ OK (≤3%)
120 mm²269 A210 A0.05 V (0.01%)689.9 V0.09 V (0.01%)3.3 W✓ OK (≤3%)
150 mm²309 A241 A0.04 V (0.01%)690.0 V0.07 V (0.01%)2.6 W✓ OK (≤3%)
185 mm²353 A275 A0.04 V (0.01%)690.0 V0.06 V (0.01%)2.1 W✓ OK (≤3%)
240 mm²415 A324 A0.03 V (0.0%)690.0 V0.04 V (0.01%)1.6 W✓ OK (≤3%)
300 mm²477 A372 A0.02 V (0.0%)690.0 V0.04 V (0.01%)1.3 W✓ OK (≤3%)
400 mm²570 A445 A0.02 V (0.0%)690.0 V0.03 V (0.0%)1.0 W✓ OK (≤3%)

FAQ — 35 Amp Cable Size at 5 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 35A at 5 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6 mm² copper cable for 35A over 5m at 690V (voltage drop: 1.08V or 0.16%).

What is the power capacity of 35A at 690V?

At unity power factor, 35A at 690V supports 41.83 kW with a standard 35A circuit breaker.