⚡ 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

10 Amp Cable Size at 35 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 10 A over 35 m (114.8 ft).

Copper Cable (≤3% Drop)1.5 mm²Drop: 8.65V (2.16%)
Aluminum Cable (≤3% Drop)2.5 mm²Drop: 8.56V (2.14%)
Voltage at Load391.4 VLine Loss: 149.8 W
Max Power & Breaker6.93 kW10A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 10A at 35m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A8.65 V (2.16%)391.4 V14.27 V (3.57%)149.8 W✓ OK (≤3%)
2.5 mm²24 A18 A5.19 V (1.3%)394.8 V8.56 V (2.14%)89.9 W✓ OK (≤3%)
4 mm²32 A25 A3.24 V (0.81%)396.8 V5.35 V (1.34%)56.2 W✓ OK (≤3%)
6 mm²41 A32 A2.16 V (0.54%)397.8 V3.57 V (0.89%)37.5 W✓ OK (≤3%)
10 mm²57 A44 A1.3 V (0.32%)398.7 V2.14 V (0.53%)22.5 W✓ OK (≤3%)
16 mm²76 A59 A0.81 V (0.2%)399.2 V1.34 V (0.33%)14.0 W✓ OK (≤3%)
25 mm²101 A78 A0.52 V (0.13%)399.5 V0.86 V (0.21%)9.0 W✓ OK (≤3%)
35 mm²125 A97 A0.37 V (0.09%)399.6 V0.61 V (0.15%)6.4 W✓ OK (≤3%)
50 mm²151 A118 A0.26 V (0.06%)399.7 V0.43 V (0.11%)4.5 W✓ OK (≤3%)
70 mm²192 A150 A0.19 V (0.05%)399.8 V0.31 V (0.08%)3.2 W✓ OK (≤3%)
95 mm²232 A181 A0.14 V (0.03%)399.9 V0.23 V (0.06%)2.4 W✓ OK (≤3%)
120 mm²269 A210 A0.11 V (0.03%)399.9 V0.18 V (0.04%)1.9 W✓ OK (≤3%)
150 mm²309 A241 A0.09 V (0.02%)399.9 V0.14 V (0.04%)1.5 W✓ OK (≤3%)
185 mm²353 A275 A0.07 V (0.02%)399.9 V0.12 V (0.03%)1.2 W✓ OK (≤3%)
240 mm²415 A324 A0.05 V (0.01%)399.9 V0.09 V (0.02%)0.9 W✓ OK (≤3%)
300 mm²477 A372 A0.04 V (0.01%)400.0 V0.07 V (0.02%)0.7 W✓ OK (≤3%)
400 mm²570 A445 A0.03 V (0.01%)400.0 V0.05 V (0.01%)0.6 W✓ OK (≤3%)

FAQ — 10 Amp Cable Size at 35 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 10A at 35 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 1.5 mm² copper cable for 10A over 35m at 400V (voltage drop: 8.65V or 2.16%).

What is the power capacity of 10A at 400V?

At unity power factor, 10A at 400V supports 6.93 kW with a standard 10A circuit breaker.