⚡ 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

650 Amp Cable Size at 500 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 650 A over 500 m (1640.4 ft).

Copper Cable (≤3% Drop)3× 400 mm²Drop: 10.04V (2.42%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 49.68V (11.97%)
Voltage at Load405.0 VLine Loss: 11301.9 W
Max Power & Breaker467.22 kW700A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A at 500m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A8030.94 V (1935.17%)0.0 V13247.3 V (3192.12%)9041500.0 WDrop High
2.5 mm²24 A18 A4818.57 V (1161.1%)0.0 V7948.38 V (1915.27%)5424900.0 WDrop High
4 mm²32 A25 A3011.6 V (725.69%)0.0 V4967.74 V (1197.05%)3390562.5 WDrop High
6 mm²41 A32 A2007.74 V (483.79%)0.0 V3311.83 V (798.03%)2260375.0 WDrop High
10 mm²57 A44 A1204.64 V (290.28%)0.0 V1987.1 V (478.82%)1356225.0 WDrop High
16 mm²76 A59 A752.9 V (181.42%)0.0 V1241.93 V (299.26%)847640.6 WDrop High
25 mm²101 A78 A481.86 V (116.11%)0.0 V794.84 V (191.53%)542490.0 WDrop High
35 mm²125 A97 A344.18 V (82.94%)70.8 V567.74 V (136.81%)387492.9 WDrop High
50 mm²151 A118 A240.93 V (58.06%)174.1 V397.42 V (95.76%)271245.0 WDrop High
70 mm²192 A150 A172.09 V (41.47%)242.9 V283.87 V (68.4%)193746.4 WDrop High
95 mm²232 A181 A126.8 V (30.56%)288.2 V209.17 V (50.4%)142760.5 WDrop High
120 mm²269 A210 A100.39 V (24.19%)314.6 V165.59 V (39.9%)113018.7 WDrop High
150 mm²309 A241 A80.31 V (19.35%)334.7 V132.47 V (31.92%)90415.0 WDrop High
185 mm²353 A275 A65.12 V (15.69%)349.9 V107.41 V (25.88%)73309.5 WDrop High
240 mm²415 A324 A50.19 V (12.09%)364.8 V82.8 V (19.95%)56509.4 WDrop High
300 mm²477 A372 A40.15 V (9.68%)374.8 V66.24 V (15.96%)45207.5 WDrop High
400 mm²570 A445 A30.12 V (7.26%)384.9 V49.68 V (11.97%)33905.6 WDrop High

FAQ — 650 Amp Cable Size at 500 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 650A at 500 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 650A over 500m at 415V (voltage drop: 10.04V or 2.42%).

What is the power capacity of 650A at 415V?

At unity power factor, 650A at 415V supports 467.22 kW with a standard 700A circuit breaker.