⚡ 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

225 Amp Cable Size at 100 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 225 A over 100 m (328.1 ft).

Copper Cable (≤3% Drop)95 mm²Drop: 8.78V (2.12%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 9.17V (2.21%)
Voltage at Load406.2 VLine Loss: 3421.2 W
Max Power & Breaker161.73 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 100m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A555.99 V (133.97%)0.0 V917.12 V (220.99%)216675.0 WDrop High
2.5 mm²24 A18 A333.59 V (80.38%)81.4 V550.27 V (132.6%)130005.0 WDrop High
4 mm²32 A25 A208.5 V (50.24%)206.5 V343.92 V (82.87%)81253.1 WDrop High
6 mm²41 A32 A139.0 V (33.49%)276.0 V229.28 V (55.25%)54168.7 WDrop High
10 mm²57 A44 A83.4 V (20.1%)331.6 V137.57 V (33.15%)32501.2 WDrop High
16 mm²76 A59 A52.12 V (12.56%)362.9 V85.98 V (20.72%)20313.3 WDrop High
25 mm²101 A78 A33.36 V (8.04%)381.6 V55.03 V (13.26%)13000.5 WDrop High
35 mm²125 A97 A23.83 V (5.74%)391.2 V39.31 V (9.47%)9286.1 WDrop High
50 mm²151 A118 A16.68 V (4.02%)398.3 V27.51 V (6.63%)6500.2 WDrop High
70 mm²192 A150 A11.91 V (2.87%)403.1 V19.65 V (4.74%)4643.0 WDrop High
95 mm²232 A181 A8.78 V (2.12%)406.2 V14.48 V (3.49%)3421.2 W✓ OK (≤3%)
120 mm²269 A210 A6.95 V (1.67%)408.1 V11.46 V (2.76%)2708.4 W✓ OK (≤3%)
150 mm²309 A241 A5.56 V (1.34%)409.4 V9.17 V (2.21%)2166.8 W✓ OK (≤3%)
185 mm²353 A275 A4.51 V (1.09%)410.5 V7.44 V (1.79%)1756.8 W✓ OK (≤3%)
240 mm²415 A324 A3.47 V (0.84%)411.5 V5.73 V (1.38%)1354.2 W✓ OK (≤3%)
300 mm²477 A372 A2.78 V (0.67%)412.2 V4.59 V (1.1%)1083.4 W✓ OK (≤3%)
400 mm²570 A445 A2.08 V (0.5%)412.9 V3.44 V (0.83%)812.5 W✓ OK (≤3%)

FAQ — 225 Amp Cable Size at 100 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 225A at 100 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 225A over 100m at 415V (voltage drop: 8.78V or 2.12%).

What is the power capacity of 225A at 415V?

At unity power factor, 225A at 415V supports 161.73 kW with a standard 225A circuit breaker.