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

375 Amp Cable Size at 350 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 375 A over 350 m (1148.3 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 6.08V (1.52%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 20.06V (5.02%)
Voltage at Load393.9 VLine Loss: 3949.8 W
Max Power & Breaker259.81 kW400A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A at 350m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A3243.27 V (810.82%)0.0 V5349.87 V (1337.47%)2106562.5 WDrop High
2.5 mm²24 A18 A1945.96 V (486.49%)0.0 V3209.92 V (802.48%)1263937.5 WDrop High
4 mm²32 A25 A1216.22 V (304.06%)0.0 V2006.2 V (501.55%)789960.9 WDrop High
6 mm²41 A32 A810.82 V (202.7%)0.0 V1337.47 V (334.37%)526640.6 WDrop High
10 mm²57 A44 A486.49 V (121.62%)0.0 V802.48 V (200.62%)315984.4 WDrop High
16 mm²76 A59 A304.06 V (76.01%)95.9 V501.55 V (125.39%)197490.2 WDrop High
25 mm²101 A78 A194.6 V (48.65%)205.4 V320.99 V (80.25%)126393.7 WDrop High
35 mm²125 A97 A139.0 V (34.75%)261.0 V229.28 V (57.32%)90281.2 WDrop High
50 mm²151 A118 A97.3 V (24.32%)302.7 V160.5 V (40.12%)63196.9 WDrop High
70 mm²192 A150 A69.5 V (17.37%)330.5 V114.64 V (28.66%)45140.6 WDrop High
95 mm²232 A181 A51.21 V (12.8%)348.8 V84.47 V (21.12%)33261.5 WDrop High
120 mm²269 A210 A40.54 V (10.14%)359.5 V66.87 V (16.72%)26332.0 WDrop High
150 mm²309 A241 A32.43 V (8.11%)367.6 V53.5 V (13.37%)21065.6 WDrop High
185 mm²353 A275 A26.3 V (6.57%)373.7 V43.38 V (10.84%)17080.2 WDrop High
240 mm²415 A324 A20.27 V (5.07%)379.7 V33.44 V (8.36%)13166.0 WDrop High
300 mm²477 A372 A16.22 V (4.05%)383.8 V26.75 V (6.69%)10532.8 W~ ≤5%
400 mm²570 A445 A12.16 V (3.04%)387.8 V20.06 V (5.02%)7899.6 W~ ≤5%

FAQ — 375 Amp Cable Size at 350 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 375A at 350 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 375A over 350m at 400V (voltage drop: 6.08V or 1.52%).

What is the power capacity of 375A at 400V?

At unity power factor, 375A at 400V supports 259.81 kW with a standard 400A circuit breaker.