⚡ 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

90 Amp Cable Size at 60 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 90 A over 60 m (196.9 ft).

Copper Cable (≤3% Drop)25 mm²Drop: 8.01V (2.0%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 9.43V (2.36%)
Voltage at Load392.0 VLine Loss: 1248.0 W
Max Power & Breaker62.35 kW90A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 90A at 60m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A133.44 V (33.36%)266.6 V220.11 V (55.03%)20800.8 WDrop High
2.5 mm²24 A18 A80.06 V (20.02%)319.9 V132.07 V (33.02%)12480.5 WDrop High
4 mm²32 A25 A50.04 V (12.51%)350.0 V82.54 V (20.64%)7800.3 WDrop High
6 mm²41 A32 A33.36 V (8.34%)366.6 V55.03 V (13.76%)5200.2 WDrop High
10 mm²57 A44 A20.02 V (5.0%)380.0 V33.02 V (8.25%)3120.1 WDrop High
16 mm²76 A59 A12.51 V (3.13%)387.5 V20.64 V (5.16%)1950.1 WDrop High
25 mm²101 A78 A8.01 V (2.0%)392.0 V13.21 V (3.3%)1248.0 W✓ OK (≤3%)
35 mm²125 A97 A5.72 V (1.43%)394.3 V9.43 V (2.36%)891.5 W✓ OK (≤3%)
50 mm²151 A118 A4.0 V (1.0%)396.0 V6.6 V (1.65%)624.0 W✓ OK (≤3%)
70 mm²192 A150 A2.86 V (0.71%)397.1 V4.72 V (1.18%)445.7 W✓ OK (≤3%)
95 mm²232 A181 A2.11 V (0.53%)397.9 V3.48 V (0.87%)328.4 W✓ OK (≤3%)
120 mm²269 A210 A1.67 V (0.42%)398.3 V2.75 V (0.69%)260.0 W✓ OK (≤3%)
150 mm²309 A241 A1.33 V (0.33%)398.7 V2.2 V (0.55%)208.0 W✓ OK (≤3%)
185 mm²353 A275 A1.08 V (0.27%)398.9 V1.78 V (0.45%)168.7 W✓ OK (≤3%)
240 mm²415 A324 A0.83 V (0.21%)399.2 V1.38 V (0.34%)130.0 W✓ OK (≤3%)
300 mm²477 A372 A0.67 V (0.17%)399.3 V1.1 V (0.28%)104.0 W✓ OK (≤3%)
400 mm²570 A445 A0.5 V (0.13%)399.5 V0.83 V (0.21%)78.0 W✓ OK (≤3%)

FAQ — 90 Amp Cable Size at 60 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 90A at 60 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 90A over 60m at 400V (voltage drop: 8.01V or 2.0%).

What is the power capacity of 90A at 400V?

At unity power factor, 90A at 400V supports 62.35 kW with a standard 90A circuit breaker.