⚡ 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 35 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 35 m (114.8 ft).

Copper Cable (≤3% Drop)95 mm²Drop: 3.07V (0.74%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 3.21V (0.77%)
Voltage at Load411.9 VLine Loss: 1197.4 W
Max Power & Breaker161.73 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 35m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A194.6 V (46.89%)220.4 V320.99 V (77.35%)75836.2 WDrop High
2.5 mm²24 A18 A116.76 V (28.13%)298.2 V192.6 V (46.41%)45501.8 WDrop High
4 mm²32 A25 A72.97 V (17.58%)342.0 V120.37 V (29.01%)28438.6 WDrop High
6 mm²41 A32 A48.65 V (11.72%)366.4 V80.25 V (19.34%)18959.1 WDrop High
10 mm²57 A44 A29.19 V (7.03%)385.8 V48.15 V (11.6%)11375.4 WDrop High
16 mm²76 A59 A18.24 V (4.4%)396.8 V30.09 V (7.25%)7109.6 WDrop High
25 mm²101 A78 A11.68 V (2.81%)403.3 V19.26 V (4.64%)4550.2 WDrop High
35 mm²125 A97 A8.34 V (2.01%)406.7 V13.76 V (3.31%)3250.1 WDrop High
50 mm²151 A118 A5.84 V (1.41%)409.2 V9.63 V (2.32%)2275.1 WDrop High
70 mm²192 A150 A4.17 V (1.0%)410.8 V6.88 V (1.66%)1625.1 WDrop High
95 mm²232 A181 A3.07 V (0.74%)411.9 V5.07 V (1.22%)1197.4 W✓ OK (≤3%)
120 mm²269 A210 A2.43 V (0.59%)412.6 V4.01 V (0.97%)948.0 W✓ OK (≤3%)
150 mm²309 A241 A1.95 V (0.47%)413.1 V3.21 V (0.77%)758.4 W✓ OK (≤3%)
185 mm²353 A275 A1.58 V (0.38%)413.4 V2.6 V (0.63%)614.9 W✓ OK (≤3%)
240 mm²415 A324 A1.22 V (0.29%)413.8 V2.01 V (0.48%)474.0 W✓ OK (≤3%)
300 mm²477 A372 A0.97 V (0.23%)414.0 V1.6 V (0.39%)379.2 W✓ OK (≤3%)
400 mm²570 A445 A0.73 V (0.18%)414.3 V1.2 V (0.29%)284.4 W✓ OK (≤3%)

FAQ — 225 Amp Cable Size at 35 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 225A at 35 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 35m at 415V (voltage drop: 3.07V or 0.74%).

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.