Kabeltverrsnitt for 50 Ampere ved 120 Meter (400V — NEK 400)
Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 50 A over 120 m ved 400V.
Copper Cable (≤3% Drop)25 mm²Drop: 8.9V (2.22%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 10.48V (2.62%)
Voltage at Load391.1 VLine Loss: 770.4 W
Max Power & Breaker34.64 kW50A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 50A at 120m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 148.26 V (37.07%) | 251.7 V | 244.57 V (61.14%) | 12840.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 88.96 V (22.24%) | 311.0 V | 146.74 V (36.68%) | 7704.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 55.6 V (13.9%) | 344.4 V | 91.71 V (22.93%) | 4815.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 37.07 V (9.27%) | 362.9 V | 61.14 V (15.29%) | 3210.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 22.24 V (5.56%) | 377.8 V | 36.68 V (9.17%) | 1926.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 13.9 V (3.47%) | 386.1 V | 22.93 V (5.73%) | 1203.8 W | ~ ≤5% |
| 25 mm² | 101 A | 78 A | 8.9 V (2.22%) | 391.1 V | 14.67 V (3.67%) | 770.4 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 6.35 V (1.59%) | 393.6 V | 10.48 V (2.62%) | 550.3 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 4.45 V (1.11%) | 395.6 V | 7.34 V (1.83%) | 385.2 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 3.18 V (0.79%) | 396.8 V | 5.24 V (1.31%) | 275.1 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 2.34 V (0.59%) | 397.7 V | 3.86 V (0.97%) | 202.7 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.85 V (0.46%) | 398.1 V | 3.06 V (0.76%) | 160.5 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 1.48 V (0.37%) | 398.5 V | 2.45 V (0.61%) | 128.4 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.2 V (0.3%) | 398.8 V | 1.98 V (0.5%) | 104.1 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.93 V (0.23%) | 399.1 V | 1.53 V (0.38%) | 80.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.74 V (0.19%) | 399.3 V | 1.22 V (0.31%) | 64.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.56 V (0.14%) | 399.4 V | 0.92 V (0.23%) | 48.2 W | ✓ OK (≤3%) |
FAQ — Kabeltverrsnitt for 50 Ampere ved 120 Meter (400V — NEK 400)
Hvilket kabeltverrsnitt må jeg bruke for 50A over 120 meter (400V)?
Etter NEK 400 anbefales 25 mm² kobberkabel for 50A ved 120 meter (400V), som gir et spenningsfall på 8.9V (2.22%).
Hvor mange kW tåler 50A ved 400V?
Kursen leverer opptil 34.64 kW med 50A vern.
Related Lengths & Currents (400V)
50A · 5m (400V)50A · 10m (400V)50A · 15m (400V)50A · 20m (400V)50A · 25m (400V)50A · 30m (400V)50A · 35m (400V)50A · 40m (400V)50A · 45m (400V)50A · 50m (400V)50A · 60m (400V)50A · 70m (400V)10A · 120m (400V)16A · 120m (400V)20A · 120m (400V)25A · 120m (400V)32A · 120m (400V)40A · 120m (400V)63A · 120m (400V)80A · 120m (400V)100A · 120m (400V)125A · 120m (400V)160A · 120m (400V)200A · 120m (400V)