⚡ 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 500 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 500 m (1640.4 ft).

Copper Cable (≤3% Drop)400 mm²Drop: 10.42V (2.61%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 17.2V (4.3%)
Voltage at Load389.6 VLine Loss: 4062.7 W
Max Power & Breaker155.88 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 500m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A2779.94 V (694.99%)0.0 V4585.6 V (1146.4%)1083375.0 WDrop High
2.5 mm²24 A18 A1667.96 V (416.99%)0.0 V2751.36 V (687.84%)650025.0 WDrop High
4 mm²32 A25 A1042.48 V (260.62%)0.0 V1719.6 V (429.9%)406265.6 WDrop High
6 mm²41 A32 A694.99 V (173.75%)0.0 V1146.4 V (286.6%)270843.8 WDrop High
10 mm²57 A44 A416.99 V (104.25%)0.0 V687.84 V (171.96%)162506.2 WDrop High
16 mm²76 A59 A260.62 V (65.15%)139.4 V429.9 V (107.48%)101566.4 WDrop High
25 mm²101 A78 A166.8 V (41.7%)233.2 V275.14 V (68.78%)65002.5 WDrop High
35 mm²125 A97 A119.14 V (29.79%)280.9 V196.53 V (49.13%)46430.4 WDrop High
50 mm²151 A118 A83.4 V (20.85%)316.6 V137.57 V (34.39%)32501.2 WDrop High
70 mm²192 A150 A59.57 V (14.89%)340.4 V98.26 V (24.57%)23215.2 WDrop High
95 mm²232 A181 A43.89 V (10.97%)356.1 V72.4 V (18.1%)17105.9 WDrop High
120 mm²269 A210 A34.75 V (8.69%)365.3 V57.32 V (14.33%)13542.2 WDrop High
150 mm²309 A241 A27.8 V (6.95%)372.2 V45.86 V (11.46%)10833.8 WDrop High
185 mm²353 A275 A22.54 V (5.64%)377.5 V37.18 V (9.3%)8784.1 WDrop High
240 mm²415 A324 A17.37 V (4.34%)382.6 V28.66 V (7.17%)6771.1 W~ ≤5%
300 mm²477 A372 A13.9 V (3.47%)386.1 V22.93 V (5.73%)5416.9 W~ ≤5%
400 mm²570 A445 A10.42 V (2.61%)389.6 V17.2 V (4.3%)4062.7 W✓ OK (≤3%)

FAQ — 225 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 225A at 500 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 225A over 500m at 400V (voltage drop: 10.42V or 2.61%).

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.