⚡ 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 10 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 10 m (32.8 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.3V (0.07%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.99V (0.24%)
Voltage at Load414.7 VLine Loss: 339.1 W
Max Power & Breaker467.22 kW700A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A at 10m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A160.62 V (38.7%)254.4 V264.95 V (63.84%)180830.0 WDrop High
2.5 mm²24 A18 A96.37 V (23.22%)318.6 V158.97 V (38.31%)108498.0 WDrop High
4 mm²32 A25 A60.23 V (14.51%)354.8 V99.35 V (23.94%)67811.2 WDrop High
6 mm²41 A32 A40.15 V (9.68%)374.8 V66.24 V (15.96%)45207.5 WDrop High
10 mm²57 A44 A24.09 V (5.81%)390.9 V39.74 V (9.58%)27124.5 WDrop High
16 mm²76 A59 A15.06 V (3.63%)399.9 V24.84 V (5.99%)16952.8 WDrop High
25 mm²101 A78 A9.64 V (2.32%)405.4 V15.9 V (3.83%)10849.8 WDrop High
35 mm²125 A97 A6.88 V (1.66%)408.1 V11.35 V (2.74%)7749.9 WDrop High
50 mm²151 A118 A4.82 V (1.16%)410.2 V7.95 V (1.92%)5424.9 WDrop High
70 mm²192 A150 A3.44 V (0.83%)411.6 V5.68 V (1.37%)3874.9 WDrop High
95 mm²232 A181 A2.54 V (0.61%)412.5 V4.18 V (1.01%)2855.2 WDrop High
120 mm²269 A210 A2.01 V (0.48%)413.0 V3.31 V (0.8%)2260.4 WDrop High
150 mm²309 A241 A1.61 V (0.39%)413.4 V2.65 V (0.64%)1808.3 WDrop High
185 mm²353 A275 A1.3 V (0.31%)413.7 V2.15 V (0.52%)1466.2 WDrop High
240 mm²415 A324 A1.0 V (0.24%)414.0 V1.66 V (0.4%)1130.2 WDrop High
300 mm²477 A372 A0.8 V (0.19%)414.2 V1.32 V (0.32%)904.1 WDrop High
400 mm²570 A445 A0.6 V (0.15%)414.4 V0.99 V (0.24%)678.1 WDrop High

FAQ — 650 Amp Cable Size at 10 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 650A at 10 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 10m at 415V (voltage drop: 0.3V or 0.07%).

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.