⚡ 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

32 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 32 A over 500 m (1640.4 ft).

Copper Cable (≤3% Drop)50 mm²Drop: 11.86V (2.86%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 10.3V (2.48%)
Voltage at Load403.1 VLine Loss: 657.4 W
Max Power & Breaker23.0 kW32A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 500m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A395.37 V (95.27%)19.6 V652.17 V (157.15%)21913.6 WDrop High
2.5 mm²24 A18 A237.22 V (57.16%)177.8 V391.3 V (94.29%)13148.2 WDrop High
4 mm²32 A25 A148.26 V (35.73%)266.7 V244.57 V (58.93%)8217.6 WDrop High
6 mm²41 A32 A98.84 V (23.82%)316.2 V163.04 V (39.29%)5478.4 WDrop High
10 mm²57 A44 A59.31 V (14.29%)355.7 V97.83 V (23.57%)3287.0 WDrop High
16 mm²76 A59 A37.07 V (8.93%)377.9 V61.14 V (14.73%)2054.4 WDrop High
25 mm²101 A78 A23.72 V (5.72%)391.3 V39.13 V (9.43%)1314.8 WDrop High
35 mm²125 A97 A16.94 V (4.08%)398.1 V27.95 V (6.74%)939.2 W~ ≤5%
50 mm²151 A118 A11.86 V (2.86%)403.1 V19.57 V (4.71%)657.4 W✓ OK (≤3%)
70 mm²192 A150 A8.47 V (2.04%)406.5 V13.98 V (3.37%)469.6 W✓ OK (≤3%)
95 mm²232 A181 A6.24 V (1.5%)408.8 V10.3 V (2.48%)346.0 W✓ OK (≤3%)
120 mm²269 A210 A4.94 V (1.19%)410.1 V8.15 V (1.96%)273.9 W✓ OK (≤3%)
150 mm²309 A241 A3.95 V (0.95%)411.0 V6.52 V (1.57%)219.1 W✓ OK (≤3%)
185 mm²353 A275 A3.21 V (0.77%)411.8 V5.29 V (1.27%)177.7 W✓ OK (≤3%)
240 mm²415 A324 A2.47 V (0.6%)412.5 V4.08 V (0.98%)137.0 W✓ OK (≤3%)
300 mm²477 A372 A1.98 V (0.48%)413.0 V3.26 V (0.79%)109.6 W✓ OK (≤3%)
400 mm²570 A445 A1.48 V (0.36%)413.5 V2.45 V (0.59%)82.2 W✓ OK (≤3%)

FAQ — 32 Amp Cable Size at 500 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 32A at 500 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 32A over 500m at 415V (voltage drop: 11.86V or 2.86%).

What is the power capacity of 32A at 415V?

At unity power factor, 32A at 415V supports 23.0 kW with a standard 32A circuit breaker.