⚡ 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

1000 Amp Cable Size at 50 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 1000 A over 50 m (164.0 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 2.31V (0.58%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 7.64V (1.91%)
Voltage at Load397.7 VLine Loss: 4012.5 W
Max Power & Breaker692.82 kW1000A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 1000A at 50m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A1235.53 V (308.88%)0.0 V2038.05 V (509.51%)2140000.0 WDrop High
2.5 mm²24 A18 A741.32 V (185.33%)0.0 V1222.83 V (305.71%)1284000.0 WDrop High
4 mm²32 A25 A463.32 V (115.83%)0.0 V764.27 V (191.07%)802500.0 WDrop High
6 mm²41 A32 A308.88 V (77.22%)91.1 V509.51 V (127.38%)535000.0 WDrop High
10 mm²57 A44 A185.33 V (46.33%)214.7 V305.71 V (76.43%)321000.0 WDrop High
16 mm²76 A59 A115.83 V (28.96%)284.2 V191.07 V (47.77%)200625.0 WDrop High
25 mm²101 A78 A74.13 V (18.53%)325.9 V122.28 V (30.57%)128400.0 WDrop High
35 mm²125 A97 A52.95 V (13.24%)347.0 V87.34 V (21.84%)91714.3 WDrop High
50 mm²151 A118 A37.07 V (9.27%)362.9 V61.14 V (15.29%)64200.0 WDrop High
70 mm²192 A150 A26.48 V (6.62%)373.5 V43.67 V (10.92%)45857.1 WDrop High
95 mm²232 A181 A19.51 V (4.88%)380.5 V32.18 V (8.04%)33789.5 WDrop High
120 mm²269 A210 A15.44 V (3.86%)384.6 V25.48 V (6.37%)26750.0 WDrop High
150 mm²309 A241 A12.36 V (3.09%)387.6 V20.38 V (5.1%)21400.0 WDrop High
185 mm²353 A275 A10.02 V (2.5%)390.0 V16.52 V (4.13%)17351.4 WDrop High
240 mm²415 A324 A7.72 V (1.93%)392.3 V12.74 V (3.18%)13375.0 WDrop High
300 mm²477 A372 A6.18 V (1.54%)393.8 V10.19 V (2.55%)10700.0 WDrop High
400 mm²570 A445 A4.63 V (1.16%)395.4 V7.64 V (1.91%)8025.0 WDrop High

FAQ — 1000 Amp Cable Size at 50 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 1000A at 50 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 1000A over 50m at 400V (voltage drop: 2.31V or 0.58%).

What is the power capacity of 1000A at 400V?

At unity power factor, 1000A at 400V supports 692.82 kW with a standard 1000A circuit breaker.