⚡ 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

200 Amp Cable Size at 25 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 200 A over 25 m (82.0 ft).

Copper Cable (≤3% Drop)95 mm²Drop: 1.95V (0.47%)
Aluminum Cable (≤3% Drop)120 mm²Drop: 2.55V (0.61%)
Voltage at Load413.0 VLine Loss: 675.8 W
Max Power & Breaker143.76 kW200A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 200A at 25m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A123.55 V (29.77%)291.4 V203.8 V (49.11%)42800.0 WDrop High
2.5 mm²24 A18 A74.13 V (17.86%)340.9 V122.28 V (29.47%)25680.0 WDrop High
4 mm²32 A25 A46.33 V (11.16%)368.7 V76.43 V (18.42%)16050.0 WDrop High
6 mm²41 A32 A30.89 V (7.44%)384.1 V50.95 V (12.28%)10700.0 WDrop High
10 mm²57 A44 A18.53 V (4.47%)396.5 V30.57 V (7.37%)6420.0 WDrop High
16 mm²76 A59 A11.58 V (2.79%)403.4 V19.11 V (4.6%)4012.5 WDrop High
25 mm²101 A78 A7.41 V (1.79%)407.6 V12.23 V (2.95%)2568.0 WDrop High
35 mm²125 A97 A5.3 V (1.28%)409.7 V8.73 V (2.1%)1834.3 WDrop High
50 mm²151 A118 A3.71 V (0.89%)411.3 V6.11 V (1.47%)1284.0 WDrop High
70 mm²192 A150 A2.65 V (0.64%)412.4 V4.37 V (1.05%)917.1 WDrop High
95 mm²232 A181 A1.95 V (0.47%)413.0 V3.22 V (0.78%)675.8 W✓ OK (≤3%)
120 mm²269 A210 A1.54 V (0.37%)413.5 V2.55 V (0.61%)535.0 W✓ OK (≤3%)
150 mm²309 A241 A1.24 V (0.3%)413.8 V2.04 V (0.49%)428.0 W✓ OK (≤3%)
185 mm²353 A275 A1.0 V (0.24%)414.0 V1.65 V (0.4%)347.0 W✓ OK (≤3%)
240 mm²415 A324 A0.77 V (0.19%)414.2 V1.27 V (0.31%)267.5 W✓ OK (≤3%)
300 mm²477 A372 A0.62 V (0.15%)414.4 V1.02 V (0.25%)214.0 W✓ OK (≤3%)
400 mm²570 A445 A0.46 V (0.11%)414.5 V0.76 V (0.18%)160.5 W✓ OK (≤3%)

FAQ — 200 Amp Cable Size at 25 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 200A at 25 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 200A over 25m at 415V (voltage drop: 1.95V or 0.47%).

What is the power capacity of 200A at 415V?

At unity power factor, 200A at 415V supports 143.76 kW with a standard 200A circuit breaker.