⚡ 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 (2026-10-25)
⚡ IEC 60364-5-52 · DIN VDE · NEK 400 · SS 436 40 00

Kabeltverrsnitt for 225 Ampere ved 25 Meter (400V — NEK 400)

Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 225 A over 25 m ved 400V.

Copper Cable (≤3% Drop)95 mm²Drop: 2.19V (0.55%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 2.29V (0.57%)
Voltage at Load397.8 VLine Loss: 855.3 W
Max Power & Breaker155.88 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 25m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A139.0 V (34.75%)261.0 V229.28 V (57.32%)54168.7 WDrop High
2.5 mm²24 A18 A83.4 V (20.85%)316.6 V137.57 V (34.39%)32501.2 WDrop High
4 mm²32 A25 A52.12 V (13.03%)347.9 V85.98 V (21.5%)20313.3 WDrop High
6 mm²41 A32 A34.75 V (8.69%)365.3 V57.32 V (14.33%)13542.2 WDrop High
10 mm²57 A44 A20.85 V (5.21%)379.2 V34.39 V (8.6%)8125.3 WDrop High
16 mm²76 A59 A13.03 V (3.26%)387.0 V21.5 V (5.37%)5078.3 WDrop High
25 mm²101 A78 A8.34 V (2.08%)391.7 V13.76 V (3.44%)3250.1 WDrop High
35 mm²125 A97 A5.96 V (1.49%)394.0 V9.83 V (2.46%)2321.5 WDrop High
50 mm²151 A118 A4.17 V (1.04%)395.8 V6.88 V (1.72%)1625.1 WDrop High
70 mm²192 A150 A2.98 V (0.74%)397.0 V4.91 V (1.23%)1160.8 WDrop High
95 mm²232 A181 A2.19 V (0.55%)397.8 V3.62 V (0.91%)855.3 W✓ OK (≤3%)
120 mm²269 A210 A1.74 V (0.43%)398.3 V2.87 V (0.72%)677.1 W✓ OK (≤3%)
150 mm²309 A241 A1.39 V (0.35%)398.6 V2.29 V (0.57%)541.7 W✓ OK (≤3%)
185 mm²353 A275 A1.13 V (0.28%)398.9 V1.86 V (0.46%)439.2 W✓ OK (≤3%)
240 mm²415 A324 A0.87 V (0.22%)399.1 V1.43 V (0.36%)338.6 W✓ OK (≤3%)
300 mm²477 A372 A0.69 V (0.17%)399.3 V1.15 V (0.29%)270.8 W✓ OK (≤3%)
400 mm²570 A445 A0.52 V (0.13%)399.5 V0.86 V (0.21%)203.1 W✓ OK (≤3%)

FAQ — Kabeltverrsnitt for 225 Ampere ved 25 Meter (400V — NEK 400)

Hvilket kabeltverrsnitt må jeg bruke for 225A over 25 meter (400V)?

Etter NEK 400 anbefales 95 mm² kobberkabel for 225A ved 25 meter (400V), som gir et spenningsfall på 2.19V (0.55%).

Hvor mange kW tåler 225A ved 400V?

Kursen leverer opptil 155.88 kW med 225A vern.