⚡ 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

450 Amp Cable Size at 60 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 450 A over 60 m (196.9 ft).

Copper Cable (≤3% Drop)300 mm²Drop: 3.34V (0.83%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.13V (1.03%)
Voltage at Load396.7 VLine Loss: 2600.1 W
Max Power & Breaker311.77 kW450A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 450A at 60m

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%)520020.0 WDrop High
2.5 mm²24 A18 A400.31 V (100.08%)0.0 V660.33 V (165.08%)312012.0 WDrop High
4 mm²32 A25 A250.19 V (62.55%)149.8 V412.7 V (103.18%)195007.5 WDrop High
6 mm²41 A32 A166.8 V (41.7%)233.2 V275.14 V (68.78%)130005.0 WDrop High
10 mm²57 A44 A100.08 V (25.02%)299.9 V165.08 V (41.27%)78003.0 WDrop High
16 mm²76 A59 A62.55 V (15.64%)337.5 V103.18 V (25.79%)48751.9 WDrop High
25 mm²101 A78 A40.03 V (10.01%)360.0 V66.03 V (16.51%)31201.2 WDrop High
35 mm²125 A97 A28.59 V (7.15%)371.4 V47.17 V (11.79%)22286.6 WDrop High
50 mm²151 A118 A20.02 V (5.0%)380.0 V33.02 V (8.25%)15600.6 WDrop High
70 mm²192 A150 A14.3 V (3.57%)385.7 V23.58 V (5.9%)11143.3 WDrop High
95 mm²232 A181 A10.53 V (2.63%)389.5 V17.38 V (4.34%)8210.8 WDrop High
120 mm²269 A210 A8.34 V (2.08%)391.7 V13.76 V (3.44%)6500.2 WDrop High
150 mm²309 A241 A6.67 V (1.67%)393.3 V11.01 V (2.75%)5200.2 WDrop High
185 mm²353 A275 A5.41 V (1.35%)394.6 V8.92 V (2.23%)4216.4 WDrop High
240 mm²415 A324 A4.17 V (1.04%)395.8 V6.88 V (1.72%)3250.1 WDrop High
300 mm²477 A372 A3.34 V (0.83%)396.7 V5.5 V (1.38%)2600.1 W✓ OK (≤3%)
400 mm²570 A445 A2.5 V (0.63%)397.5 V4.13 V (1.03%)1950.1 W✓ OK (≤3%)

FAQ — 450 Amp Cable Size at 60 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 450A at 60 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 450A over 60m at 400V (voltage drop: 3.34V or 0.83%).

What is the power capacity of 450A at 400V?

At unity power factor, 450A at 400V supports 311.77 kW with a standard 450A circuit breaker.