⚡ 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

Kabeltverrsnitt for 550 Ampere ved 40 Meter (230V — NEK 400)

Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 550 A over 40 m ved 230V.

Copper Cable (≤3% Drop)400 mm²Drop: 2.35V (1.02%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.88V (1.69%)
Voltage at Load227.6 VLine Loss: 1294.7 W
Max Power & Breaker126.5 kW600A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 40m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A627.73 V (272.93%)0.0 V1035.47 V (450.2%)345253.3 WDrop High
2.5 mm²24 A18 A376.64 V (163.76%)0.0 V621.28 V (270.12%)207152.0 WDrop High
4 mm²32 A25 A235.4 V (102.35%)0.0 V388.3 V (168.83%)129470.0 WDrop High
6 mm²41 A32 A156.93 V (68.23%)73.1 V258.87 V (112.55%)86313.3 WDrop High
10 mm²57 A44 A94.16 V (40.94%)135.8 V155.32 V (67.53%)51788.0 WDrop High
16 mm²76 A59 A58.85 V (25.59%)171.2 V97.07 V (42.21%)32367.5 WDrop High
25 mm²101 A78 A37.66 V (16.38%)192.3 V62.13 V (27.01%)20715.2 WDrop High
35 mm²125 A97 A26.9 V (11.7%)203.1 V44.38 V (19.29%)14796.6 WDrop High
50 mm²151 A118 A18.83 V (8.19%)211.2 V31.06 V (13.51%)10357.6 WDrop High
70 mm²192 A150 A13.45 V (5.85%)216.5 V22.19 V (9.65%)7398.3 WDrop High
95 mm²232 A181 A9.91 V (4.31%)220.1 V16.35 V (7.11%)5451.4 WDrop High
120 mm²269 A210 A7.85 V (3.41%)222.2 V12.94 V (5.63%)4315.7 WDrop High
150 mm²309 A241 A6.28 V (2.73%)223.7 V10.35 V (4.5%)3452.5 WDrop High
185 mm²353 A275 A5.09 V (2.21%)224.9 V8.4 V (3.65%)2799.4 WDrop High
240 mm²415 A324 A3.92 V (1.71%)226.1 V6.47 V (2.81%)2157.8 WDrop High
300 mm²477 A372 A3.14 V (1.36%)226.9 V5.18 V (2.25%)1726.3 WDrop High
400 mm²570 A445 A2.35 V (1.02%)227.6 V3.88 V (1.69%)1294.7 W✓ OK (≤3%)

FAQ — Kabeltverrsnitt for 550 Ampere ved 40 Meter (230V — NEK 400)

Hvilket kabeltverrsnitt må jeg bruke for 550A over 40 meter (230V)?

Etter NEK 400 anbefales 400 mm² kobberkabel for 550A ved 40 meter (230V), som gir et spenningsfall på 2.35V (1.02%).

Hvor mange kW tåler 550A ved 230V?

Kursen leverer opptil 126.5 kW med 600A vern.