⚡ 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

550 Amp Cable Size at 60 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 60 m (196.9 ft).

Copper Cable (≤3% Drop)400 mm²Drop: 3.06V (0.74%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 5.04V (1.22%)
Voltage at Load411.9 VLine Loss: 2913.1 W
Max Power & Breaker395.34 kW600A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 60m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A815.45 V (196.49%)0.0 V1345.11 V (324.12%)776820.0 WDrop High
2.5 mm²24 A18 A489.27 V (117.9%)0.0 V807.07 V (194.47%)466092.0 WDrop High
4 mm²32 A25 A305.79 V (73.69%)109.2 V504.42 V (121.55%)291307.5 WDrop High
6 mm²41 A32 A203.86 V (49.12%)211.1 V336.28 V (81.03%)194205.0 WDrop High
10 mm²57 A44 A122.32 V (29.47%)292.7 V201.77 V (48.62%)116523.0 WDrop High
16 mm²76 A59 A76.45 V (18.42%)338.6 V126.1 V (30.39%)72826.9 WDrop High
25 mm²101 A78 A48.93 V (11.79%)366.1 V80.71 V (19.45%)46609.2 WDrop High
35 mm²125 A97 A34.95 V (8.42%)380.1 V57.65 V (13.89%)33292.3 WDrop High
50 mm²151 A118 A24.46 V (5.89%)390.5 V40.35 V (9.72%)23304.6 WDrop High
70 mm²192 A150 A17.47 V (4.21%)397.5 V28.82 V (6.95%)16646.1 WDrop High
95 mm²232 A181 A12.88 V (3.1%)402.1 V21.24 V (5.12%)12265.6 WDrop High
120 mm²269 A210 A10.19 V (2.46%)404.8 V16.81 V (4.05%)9710.2 WDrop High
150 mm²309 A241 A8.15 V (1.96%)406.8 V13.45 V (3.24%)7768.2 WDrop High
185 mm²353 A275 A6.61 V (1.59%)408.4 V10.91 V (2.63%)6298.5 WDrop High
240 mm²415 A324 A5.1 V (1.23%)409.9 V8.41 V (2.03%)4855.1 WDrop High
300 mm²477 A372 A4.08 V (0.98%)410.9 V6.73 V (1.62%)3884.1 WDrop High
400 mm²570 A445 A3.06 V (0.74%)411.9 V5.04 V (1.22%)2913.1 W✓ OK (≤3%)

FAQ — 550 Amp Cable Size at 60 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 550A at 60 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 550A over 60m at 415V (voltage drop: 3.06V or 0.74%).

What is the power capacity of 550A at 415V?

At unity power factor, 550A at 415V supports 395.34 kW with a standard 600A circuit breaker.