⚡ 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 100 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 100 m (328.1 ft).

Copper Cable (≤3% Drop)10 mm²Drop: 12.97V (1.88%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 13.37V (1.94%)
Voltage at Load677.0 VLine Loss: 786.4 W
Max Power & Breaker41.83 kW35A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A at 100m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A86.49 V (12.53%)603.5 V142.66 V (20.68%)5243.0 WDrop High
2.5 mm²24 A18 A51.89 V (7.52%)638.1 V85.6 V (12.41%)3145.8 WDrop High
4 mm²32 A25 A32.43 V (4.7%)657.6 V53.5 V (7.75%)1966.1 WDrop High
6 mm²41 A32 A21.62 V (3.13%)668.4 V35.67 V (5.17%)1310.7 W~ ≤5%
10 mm²57 A44 A12.97 V (1.88%)677.0 V21.4 V (3.1%)786.4 W✓ OK (≤3%)
16 mm²76 A59 A8.11 V (1.18%)681.9 V13.37 V (1.94%)491.5 W✓ OK (≤3%)
25 mm²101 A78 A5.19 V (0.75%)684.8 V8.56 V (1.24%)314.6 W✓ OK (≤3%)
35 mm²125 A97 A3.71 V (0.54%)686.3 V6.11 V (0.89%)224.7 W✓ OK (≤3%)
50 mm²151 A118 A2.59 V (0.38%)687.4 V4.28 V (0.62%)157.3 W✓ OK (≤3%)
70 mm²192 A150 A1.85 V (0.27%)688.1 V3.06 V (0.44%)112.3 W✓ OK (≤3%)
95 mm²232 A181 A1.37 V (0.2%)688.6 V2.25 V (0.33%)82.8 W✓ OK (≤3%)
120 mm²269 A210 A1.08 V (0.16%)688.9 V1.78 V (0.26%)65.5 W✓ OK (≤3%)
150 mm²309 A241 A0.86 V (0.13%)689.1 V1.43 V (0.21%)52.4 W✓ OK (≤3%)
185 mm²353 A275 A0.7 V (0.1%)689.3 V1.16 V (0.17%)42.5 W✓ OK (≤3%)
240 mm²415 A324 A0.54 V (0.08%)689.5 V0.89 V (0.13%)32.8 W✓ OK (≤3%)
300 mm²477 A372 A0.43 V (0.06%)689.6 V0.71 V (0.1%)26.2 W✓ OK (≤3%)
400 mm²570 A445 A0.32 V (0.05%)689.7 V0.53 V (0.08%)19.7 W✓ OK (≤3%)

FAQ — 35 Amp Cable Size at 100 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 35A at 100 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10 mm² copper cable for 35A over 100m at 690V (voltage drop: 12.97V or 1.88%).

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.