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⚡ IEC 60364-5-52 · DIN VDE · NEK 400 · SS 436 40 00

800 Amp Cable Size at 10 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 800 A over 10 m (32.8 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.37V (0.1%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.22V (0.31%)
Voltage at Load399.6 VLine Loss: 513.6 W
Max Power & Breaker554.26 kW800A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A at 10m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A197.68 V (49.42%)202.3 V326.09 V (81.52%)273920.0 WDrop High
2.5 mm²24 A18 A118.61 V (29.65%)281.4 V195.65 V (48.91%)164352.0 WDrop High
4 mm²32 A25 A74.13 V (18.53%)325.9 V122.28 V (30.57%)102720.0 WDrop High
6 mm²41 A32 A49.42 V (12.36%)350.6 V81.52 V (20.38%)68480.0 WDrop High
10 mm²57 A44 A29.65 V (7.41%)370.3 V48.91 V (12.23%)41088.0 WDrop High
16 mm²76 A59 A18.53 V (4.63%)381.5 V30.57 V (7.64%)25680.0 WDrop High
25 mm²101 A78 A11.86 V (2.97%)388.1 V19.57 V (4.89%)16435.2 WDrop High
35 mm²125 A97 A8.47 V (2.12%)391.5 V13.98 V (3.49%)11739.4 WDrop High
50 mm²151 A118 A5.93 V (1.48%)394.1 V9.78 V (2.45%)8217.6 WDrop High
70 mm²192 A150 A4.24 V (1.06%)395.8 V6.99 V (1.75%)5869.7 WDrop High
95 mm²232 A181 A3.12 V (0.78%)396.9 V5.15 V (1.29%)4325.1 WDrop High
120 mm²269 A210 A2.47 V (0.62%)397.5 V4.08 V (1.02%)3424.0 WDrop High
150 mm²309 A241 A1.98 V (0.49%)398.0 V3.26 V (0.82%)2739.2 WDrop High
185 mm²353 A275 A1.6 V (0.4%)398.4 V2.64 V (0.66%)2221.0 WDrop High
240 mm²415 A324 A1.24 V (0.31%)398.8 V2.04 V (0.51%)1712.0 WDrop High
300 mm²477 A372 A0.99 V (0.25%)399.0 V1.63 V (0.41%)1369.6 WDrop High
400 mm²570 A445 A0.74 V (0.19%)399.3 V1.22 V (0.31%)1027.2 WDrop High

FAQ — 800 Amp Cable Size at 10 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 800A at 10 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 800A over 10m at 400V (voltage drop: 0.37V or 0.1%).

What is the power capacity of 800A at 400V?

At unity power factor, 800A at 400V supports 554.26 kW with a standard 800A circuit breaker.