⚡ 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

225 Amp Cable Size at 80 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 225 A over 80 m (262.5 ft).

Copper Cable (≤3% Drop)95 mm²Drop: 7.02V (1.76%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 7.34V (1.83%)
Voltage at Load393.0 VLine Loss: 2736.9 W
Max Power & Breaker155.88 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 80m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A444.79 V (111.2%)0.0 V733.7 V (183.42%)173340.0 WDrop High
2.5 mm²24 A18 A266.87 V (66.72%)133.1 V440.22 V (110.05%)104004.0 WDrop High
4 mm²32 A25 A166.8 V (41.7%)233.2 V275.14 V (68.78%)65002.5 WDrop High
6 mm²41 A32 A111.2 V (27.8%)288.8 V183.42 V (45.86%)43335.0 WDrop High
10 mm²57 A44 A66.72 V (16.68%)333.3 V110.05 V (27.51%)26001.0 WDrop High
16 mm²76 A59 A41.7 V (10.42%)358.3 V68.78 V (17.2%)16250.6 WDrop High
25 mm²101 A78 A26.69 V (6.67%)373.3 V44.02 V (11.01%)10400.4 WDrop High
35 mm²125 A97 A19.06 V (4.77%)380.9 V31.44 V (7.86%)7428.9 WDrop High
50 mm²151 A118 A13.34 V (3.34%)386.7 V22.01 V (5.5%)5200.2 WDrop High
70 mm²192 A150 A9.53 V (2.38%)390.5 V15.72 V (3.93%)3714.4 WDrop High
95 mm²232 A181 A7.02 V (1.76%)393.0 V11.58 V (2.9%)2736.9 W✓ OK (≤3%)
120 mm²269 A210 A5.56 V (1.39%)394.4 V9.17 V (2.29%)2166.8 W✓ OK (≤3%)
150 mm²309 A241 A4.45 V (1.11%)395.6 V7.34 V (1.83%)1733.4 W✓ OK (≤3%)
185 mm²353 A275 A3.61 V (0.9%)396.4 V5.95 V (1.49%)1405.5 W✓ OK (≤3%)
240 mm²415 A324 A2.78 V (0.69%)397.2 V4.59 V (1.15%)1083.4 W✓ OK (≤3%)
300 mm²477 A372 A2.22 V (0.56%)397.8 V3.67 V (0.92%)866.7 W✓ OK (≤3%)
400 mm²570 A445 A1.67 V (0.42%)398.3 V2.75 V (0.69%)650.0 W✓ OK (≤3%)

FAQ — 225 Amp Cable Size at 80 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 225A at 80 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 225A over 80m at 400V (voltage drop: 7.02V or 1.76%).

What is the power capacity of 225A at 400V?

At unity power factor, 225A at 400V supports 155.88 kW with a standard 225A circuit breaker.