⚡ 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 5 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 5 m (16.4 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.15V (0.04%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.5V (0.12%)
Voltage at Load414.9 VLine Loss: 169.6 W
Max Power & Breaker467.22 kW700A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A at 5m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A80.31 V (19.35%)334.7 V132.47 V (31.92%)90415.0 WDrop High
2.5 mm²24 A18 A48.19 V (11.61%)366.8 V79.48 V (19.15%)54249.0 WDrop High
4 mm²32 A25 A30.12 V (7.26%)384.9 V49.68 V (11.97%)33905.6 WDrop High
6 mm²41 A32 A20.08 V (4.84%)394.9 V33.12 V (7.98%)22603.8 WDrop High
10 mm²57 A44 A12.05 V (2.9%)403.0 V19.87 V (4.79%)13562.2 WDrop High
16 mm²76 A59 A7.53 V (1.81%)407.5 V12.42 V (2.99%)8476.4 WDrop High
25 mm²101 A78 A4.82 V (1.16%)410.2 V7.95 V (1.92%)5424.9 WDrop High
35 mm²125 A97 A3.44 V (0.83%)411.6 V5.68 V (1.37%)3874.9 WDrop High
50 mm²151 A118 A2.41 V (0.58%)412.6 V3.97 V (0.96%)2712.4 WDrop High
70 mm²192 A150 A1.72 V (0.41%)413.3 V2.84 V (0.68%)1937.5 WDrop High
95 mm²232 A181 A1.27 V (0.31%)413.7 V2.09 V (0.5%)1427.6 WDrop High
120 mm²269 A210 A1.0 V (0.24%)414.0 V1.66 V (0.4%)1130.2 WDrop High
150 mm²309 A241 A0.8 V (0.19%)414.2 V1.32 V (0.32%)904.1 WDrop High
185 mm²353 A275 A0.65 V (0.16%)414.3 V1.07 V (0.26%)733.1 WDrop High
240 mm²415 A324 A0.5 V (0.12%)414.5 V0.83 V (0.2%)565.1 WDrop High
300 mm²477 A372 A0.4 V (0.1%)414.6 V0.66 V (0.16%)452.1 WDrop High
400 mm²570 A445 A0.3 V (0.07%)414.7 V0.5 V (0.12%)339.1 WDrop High

FAQ — 650 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 650A at 5 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 650A over 5m at 415V (voltage drop: 0.15V or 0.04%).

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.