⚡ 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

650 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 650 A over 175 m (574.1 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 5.27V (1.27%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 17.39V (4.19%)
Voltage at Load409.7 VLine Loss: 5933.5 W
Max Power & Breaker467.22 kW700A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A at 175m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A2810.83 V (677.31%)0.0 V4636.56 V (1117.24%)3164525.0 WDrop High
2.5 mm²24 A18 A1686.5 V (406.39%)0.0 V2781.93 V (670.35%)1898715.0 WDrop High
4 mm²32 A25 A1054.06 V (253.99%)0.0 V1738.71 V (418.97%)1186696.9 WDrop High
6 mm²41 A32 A702.71 V (169.33%)0.0 V1159.14 V (279.31%)791131.2 WDrop High
10 mm²57 A44 A421.62 V (101.6%)0.0 V695.48 V (167.59%)474678.7 WDrop High
16 mm²76 A59 A263.52 V (63.5%)151.5 V434.68 V (104.74%)296674.2 WDrop High
25 mm²101 A78 A168.65 V (40.64%)246.4 V278.19 V (67.03%)189871.5 WDrop High
35 mm²125 A97 A120.46 V (29.03%)294.5 V198.71 V (47.88%)135622.5 WDrop High
50 mm²151 A118 A84.32 V (20.32%)330.7 V139.1 V (33.52%)94935.8 WDrop High
70 mm²192 A150 A60.23 V (14.51%)354.8 V99.35 V (23.94%)67811.2 WDrop High
95 mm²232 A181 A44.38 V (10.69%)370.6 V73.21 V (17.64%)49966.2 WDrop High
120 mm²269 A210 A35.14 V (8.47%)379.9 V57.96 V (13.97%)39556.6 WDrop High
150 mm²309 A241 A28.11 V (6.77%)386.9 V46.37 V (11.17%)31645.2 WDrop High
185 mm²353 A275 A22.79 V (5.49%)392.2 V37.59 V (9.06%)25658.3 WDrop High
240 mm²415 A324 A17.57 V (4.23%)397.4 V28.98 V (6.98%)19778.3 WDrop High
300 mm²477 A372 A14.05 V (3.39%)400.9 V23.18 V (5.59%)15822.6 WDrop High
400 mm²570 A445 A10.54 V (2.54%)404.5 V17.39 V (4.19%)11867.0 WDrop High

FAQ — 650 Amp Cable Size at 175 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 650A at 175 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 650A over 175m at 415V (voltage drop: 5.27V or 1.27%).

What is the power capacity of 650A at 415V?

At unity power factor, 650A at 415V supports 467.22 kW with a standard 700A circuit breaker.