⚡ 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

16 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 16 A over 350 m (1148.3 ft).

Copper Cable (≤3% Drop)25 mm²Drop: 8.3V (2.0%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 9.78V (2.36%)
Voltage at Load406.7 VLine Loss: 230.1 W
Max Power & Breaker11.5 kW16A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 16A at 350m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A138.38 V (33.34%)276.6 V228.26 V (55.0%)3834.9 WDrop High
2.5 mm²24 A18 A83.03 V (20.01%)332.0 V136.96 V (33.0%)2300.9 WDrop High
4 mm²32 A25 A51.89 V (12.5%)363.1 V85.6 V (20.63%)1438.1 WDrop High
6 mm²41 A32 A34.59 V (8.34%)380.4 V57.07 V (13.75%)958.7 WDrop High
10 mm²57 A44 A20.76 V (5.0%)394.2 V34.24 V (8.25%)575.2 WDrop High
16 mm²76 A59 A12.97 V (3.13%)402.0 V21.4 V (5.16%)359.5 W~ ≤5%
25 mm²101 A78 A8.3 V (2.0%)406.7 V13.7 V (3.3%)230.1 W✓ OK (≤3%)
35 mm²125 A97 A5.93 V (1.43%)409.1 V9.78 V (2.36%)164.4 W✓ OK (≤3%)
50 mm²151 A118 A4.15 V (1.0%)410.8 V6.85 V (1.65%)115.0 W✓ OK (≤3%)
70 mm²192 A150 A2.97 V (0.71%)412.0 V4.89 V (1.18%)82.2 W✓ OK (≤3%)
95 mm²232 A181 A2.18 V (0.53%)412.8 V3.6 V (0.87%)60.6 W✓ OK (≤3%)
120 mm²269 A210 A1.73 V (0.42%)413.3 V2.85 V (0.69%)47.9 W✓ OK (≤3%)
150 mm²309 A241 A1.38 V (0.33%)413.6 V2.28 V (0.55%)38.3 W✓ OK (≤3%)
185 mm²353 A275 A1.12 V (0.27%)413.9 V1.85 V (0.45%)31.1 W✓ OK (≤3%)
240 mm²415 A324 A0.86 V (0.21%)414.1 V1.43 V (0.34%)24.0 W✓ OK (≤3%)
300 mm²477 A372 A0.69 V (0.17%)414.3 V1.14 V (0.28%)19.2 W✓ OK (≤3%)
400 mm²570 A445 A0.52 V (0.13%)414.5 V0.86 V (0.21%)14.4 W✓ OK (≤3%)

FAQ — 16 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 16A at 350 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 16A over 350m at 415V (voltage drop: 8.3V or 2.0%).

What is the power capacity of 16A at 415V?

At unity power factor, 16A at 415V supports 11.5 kW with a standard 16A circuit breaker.