⚡ 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

45 Amp Cable Size at 600 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 45 A over 600 m (1968.5 ft).

Copper Cable (≤3% Drop)95 mm²Drop: 10.53V (2.63%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 11.01V (2.75%)
Voltage at Load389.5 VLine Loss: 821.1 W
Max Power & Breaker31.18 kW45A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 45A at 600m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A667.19 V (166.8%)0.0 V1100.55 V (275.14%)52002.0 WDrop High
2.5 mm²24 A18 A400.31 V (100.08%)0.0 V660.33 V (165.08%)31201.2 WDrop High
4 mm²32 A25 A250.19 V (62.55%)149.8 V412.7 V (103.18%)19500.8 WDrop High
6 mm²41 A32 A166.8 V (41.7%)233.2 V275.14 V (68.78%)13000.5 WDrop High
10 mm²57 A44 A100.08 V (25.02%)299.9 V165.08 V (41.27%)7800.3 WDrop High
16 mm²76 A59 A62.55 V (15.64%)337.5 V103.18 V (25.79%)4875.2 WDrop High
25 mm²101 A78 A40.03 V (10.01%)360.0 V66.03 V (16.51%)3120.1 WDrop High
35 mm²125 A97 A28.59 V (7.15%)371.4 V47.17 V (11.79%)2228.7 WDrop High
50 mm²151 A118 A20.02 V (5.0%)380.0 V33.02 V (8.25%)1560.1 WDrop High
70 mm²192 A150 A14.3 V (3.57%)385.7 V23.58 V (5.9%)1114.3 W~ ≤5%
95 mm²232 A181 A10.53 V (2.63%)389.5 V17.38 V (4.34%)821.1 W✓ OK (≤3%)
120 mm²269 A210 A8.34 V (2.08%)391.7 V13.76 V (3.44%)650.0 W✓ OK (≤3%)
150 mm²309 A241 A6.67 V (1.67%)393.3 V11.01 V (2.75%)520.0 W✓ OK (≤3%)
185 mm²353 A275 A5.41 V (1.35%)394.6 V8.92 V (2.23%)421.6 W✓ OK (≤3%)
240 mm²415 A324 A4.17 V (1.04%)395.8 V6.88 V (1.72%)325.0 W✓ OK (≤3%)
300 mm²477 A372 A3.34 V (0.83%)396.7 V5.5 V (1.38%)260.0 W✓ OK (≤3%)
400 mm²570 A445 A2.5 V (0.63%)397.5 V4.13 V (1.03%)195.0 W✓ OK (≤3%)

FAQ — 45 Amp Cable Size at 600 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 45A at 600 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 45A over 600m at 400V (voltage drop: 10.53V or 2.63%).

What is the power capacity of 45A at 400V?

At unity power factor, 45A at 400V supports 31.18 kW with a standard 45A circuit breaker.