⚡ 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

200 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 200 A over 400 m (1312.3 ft).

Copper Cable (≤3% Drop)240 mm²Drop: 12.36V (2.98%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 12.23V (2.95%)
Voltage at Load402.6 VLine Loss: 4280.0 W
Max Power & Breaker143.76 kW200A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 200A at 400m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A1976.85 V (476.35%)0.0 V3260.87 V (785.75%)684800.0 WDrop High
2.5 mm²24 A18 A1186.11 V (285.81%)0.0 V1956.52 V (471.45%)410880.0 WDrop High
4 mm²32 A25 A741.32 V (178.63%)0.0 V1222.83 V (294.66%)256800.0 WDrop High
6 mm²41 A32 A494.21 V (119.09%)0.0 V815.22 V (196.44%)171200.0 WDrop High
10 mm²57 A44 A296.53 V (71.45%)118.5 V489.13 V (117.86%)102720.0 WDrop High
16 mm²76 A59 A185.33 V (44.66%)229.7 V305.71 V (73.66%)64200.0 WDrop High
25 mm²101 A78 A118.61 V (28.58%)296.4 V195.65 V (47.15%)41088.0 WDrop High
35 mm²125 A97 A84.72 V (20.41%)330.3 V139.75 V (33.68%)29348.6 WDrop High
50 mm²151 A118 A59.31 V (14.29%)355.7 V97.83 V (23.57%)20544.0 WDrop High
70 mm²192 A150 A42.36 V (10.21%)372.6 V69.88 V (16.84%)14674.3 WDrop High
95 mm²232 A181 A31.21 V (7.52%)383.8 V51.49 V (12.41%)10812.6 WDrop High
120 mm²269 A210 A24.71 V (5.95%)390.3 V40.76 V (9.82%)8560.0 WDrop High
150 mm²309 A241 A19.77 V (4.76%)395.2 V32.61 V (7.86%)6848.0 W~ ≤5%
185 mm²353 A275 A16.03 V (3.86%)399.0 V26.44 V (6.37%)5552.4 W~ ≤5%
240 mm²415 A324 A12.36 V (2.98%)402.6 V20.38 V (4.91%)4280.0 W✓ OK (≤3%)
300 mm²477 A372 A9.88 V (2.38%)405.1 V16.3 V (3.93%)3424.0 W✓ OK (≤3%)
400 mm²570 A445 A7.41 V (1.79%)407.6 V12.23 V (2.95%)2568.0 W✓ OK (≤3%)

FAQ — 200 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 200A at 400 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 200A over 400m at 415V (voltage drop: 12.36V or 2.98%).

What is the power capacity of 200A at 415V?

At unity power factor, 200A at 415V supports 143.76 kW with a standard 200A circuit breaker.