⚡ 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 175 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 175 m (574.1 ft).

Copper Cable (≤3% Drop)120 mm²Drop: 12.16V (2.93%)
Aluminum Cable (≤3% Drop)240 mm²Drop: 10.03V (2.42%)
Voltage at Load402.8 VLine Loss: 4739.8 W
Max Power & Breaker161.73 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 175m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A972.98 V (234.45%)0.0 V1604.96 V (386.74%)379181.2 WDrop High
2.5 mm²24 A18 A583.79 V (140.67%)0.0 V962.98 V (232.04%)227508.7 WDrop High
4 mm²32 A25 A364.87 V (87.92%)50.1 V601.86 V (145.03%)142193.0 WDrop High
6 mm²41 A32 A243.24 V (58.61%)171.8 V401.24 V (96.68%)94795.3 WDrop High
10 mm²57 A44 A145.95 V (35.17%)269.1 V240.74 V (58.01%)56877.2 WDrop High
16 mm²76 A59 A91.22 V (21.98%)323.8 V150.47 V (36.26%)35548.2 WDrop High
25 mm²101 A78 A58.38 V (14.07%)356.6 V96.3 V (23.2%)22750.9 WDrop High
35 mm²125 A97 A41.7 V (10.05%)373.3 V68.78 V (16.57%)16250.6 WDrop High
50 mm²151 A118 A29.19 V (7.03%)385.8 V48.15 V (11.6%)11375.4 WDrop High
70 mm²192 A150 A20.85 V (5.02%)394.2 V34.39 V (8.29%)8125.3 WDrop High
95 mm²232 A181 A15.36 V (3.7%)399.6 V25.34 V (6.11%)5987.1 W~ ≤5%
120 mm²269 A210 A12.16 V (2.93%)402.8 V20.06 V (4.83%)4739.8 W✓ OK (≤3%)
150 mm²309 A241 A9.73 V (2.34%)405.3 V16.05 V (3.87%)3791.8 W✓ OK (≤3%)
185 mm²353 A275 A7.89 V (1.9%)407.1 V13.01 V (3.14%)3074.4 W✓ OK (≤3%)
240 mm²415 A324 A6.08 V (1.47%)408.9 V10.03 V (2.42%)2369.9 W✓ OK (≤3%)
300 mm²477 A372 A4.86 V (1.17%)410.1 V8.02 V (1.93%)1895.9 W✓ OK (≤3%)
400 mm²570 A445 A3.65 V (0.88%)411.4 V6.02 V (1.45%)1421.9 W✓ OK (≤3%)

FAQ — 225 Amp Cable Size at 175 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 225A at 175 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 120 mm² copper cable for 225A over 175m at 415V (voltage drop: 12.16V or 2.93%).

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.