⚡ 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 15 Meters (230V Single-Phase (IEC Europe / UK / AU))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 650 A over 15 m (49.2 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.52V (0.23%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.72V (0.75%)
Voltage at Load229.5 VLine Loss: 339.1 W
Max Power & Breaker149.5 kW700A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A at 15m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A278.2 V (120.96%)0.0 V458.9 V (199.52%)180830.0 WDrop High
2.5 mm²24 A18 A166.92 V (72.57%)63.1 V275.34 V (119.71%)108498.0 WDrop High
4 mm²32 A25 A104.33 V (45.36%)125.7 V172.09 V (74.82%)67811.2 WDrop High
6 mm²41 A32 A69.55 V (30.24%)160.4 V114.72 V (49.88%)45207.5 WDrop High
10 mm²57 A44 A41.73 V (18.14%)188.3 V68.83 V (29.93%)27124.5 WDrop High
16 mm²76 A59 A26.08 V (11.34%)203.9 V43.02 V (18.71%)16952.8 WDrop High
25 mm²101 A78 A16.69 V (7.26%)213.3 V27.53 V (11.97%)10849.8 WDrop High
35 mm²125 A97 A11.92 V (5.18%)218.1 V19.67 V (8.55%)7749.9 WDrop High
50 mm²151 A118 A8.35 V (3.63%)221.7 V13.77 V (5.99%)5424.9 WDrop High
70 mm²192 A150 A5.96 V (2.59%)224.0 V9.83 V (4.28%)3874.9 WDrop High
95 mm²232 A181 A4.39 V (1.91%)225.6 V7.25 V (3.15%)2855.2 WDrop High
120 mm²269 A210 A3.48 V (1.51%)226.5 V5.74 V (2.49%)2260.4 WDrop High
150 mm²309 A241 A2.78 V (1.21%)227.2 V4.59 V (2.0%)1808.3 WDrop High
185 mm²353 A275 A2.26 V (0.98%)227.7 V3.72 V (1.62%)1466.2 WDrop High
240 mm²415 A324 A1.74 V (0.76%)228.3 V2.87 V (1.25%)1130.2 WDrop High
300 mm²477 A372 A1.39 V (0.6%)228.6 V2.29 V (1.0%)904.1 WDrop High
400 mm²570 A445 A1.04 V (0.45%)229.0 V1.72 V (0.75%)678.1 WDrop High

FAQ — 650 Amp Cable Size at 15 Meters (230V Single-Phase (IEC Europe / UK / AU))

What mm² cable size is required for 650A at 15 meters (230V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 650A over 15m at 230V (voltage drop: 0.52V or 0.23%).

What is the power capacity of 650A at 230V?

At unity power factor, 650A at 230V supports 149.5 kW with a standard 700A circuit breaker.