Kabeltverrsnitt for 40 Ampere ved 300 Meter (400V — NEK 400)
Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 40 A over 300 m ved 400V.
Copper Cable (≤3% Drop)50 mm²Drop: 8.9V (2.22%)
Aluminum Cable (≤3% Drop)70 mm²Drop: 10.48V (2.62%)
Voltage at Load391.1 VLine Loss: 616.3 W
Max Power & Breaker27.71 kW40A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 40A at 300m
| 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 | 296.53 V (74.13%) | 103.5 V | 489.13 V (122.28%) | 20544.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 177.92 V (44.48%) | 222.1 V | 293.48 V (73.37%) | 12326.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 111.2 V (27.8%) | 288.8 V | 183.42 V (45.86%) | 7704.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 74.13 V (18.53%) | 325.9 V | 122.28 V (30.57%) | 5136.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 44.48 V (11.12%) | 355.5 V | 73.37 V (18.34%) | 3081.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 27.8 V (6.95%) | 372.2 V | 45.86 V (11.46%) | 1926.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 17.79 V (4.45%) | 382.2 V | 29.35 V (7.34%) | 1232.6 W | ~ ≤5% |
| 35 mm² | 125 A | 97 A | 12.71 V (3.18%) | 387.3 V | 20.96 V (5.24%) | 880.5 W | ~ ≤5% |
| 50 mm² | 151 A | 118 A | 8.9 V (2.22%) | 391.1 V | 14.67 V (3.67%) | 616.3 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 6.35 V (1.59%) | 393.6 V | 10.48 V (2.62%) | 440.2 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 4.68 V (1.17%) | 395.3 V | 7.72 V (1.93%) | 324.4 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 3.71 V (0.93%) | 396.3 V | 6.11 V (1.53%) | 256.8 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 2.97 V (0.74%) | 397.0 V | 4.89 V (1.22%) | 205.4 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 2.4 V (0.6%) | 397.6 V | 3.97 V (0.99%) | 166.6 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.85 V (0.46%) | 398.1 V | 3.06 V (0.76%) | 128.4 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.48 V (0.37%) | 398.5 V | 2.45 V (0.61%) | 102.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.11 V (0.28%) | 398.9 V | 1.83 V (0.46%) | 77.0 W | ✓ OK (≤3%) |
FAQ — Kabeltverrsnitt for 40 Ampere ved 300 Meter (400V — NEK 400)
Hvilket kabeltverrsnitt må jeg bruke for 40A over 300 meter (400V)?
Etter NEK 400 anbefales 50 mm² kobberkabel for 40A ved 300 meter (400V), som gir et spenningsfall på 8.9V (2.22%).
Hvor mange kW tåler 40A ved 400V?
Kursen leverer opptil 27.71 kW med 40A vern.
Related Lengths & Currents (400V)
40A · 5m (400V)40A · 10m (400V)40A · 15m (400V)40A · 20m (400V)40A · 25m (400V)40A · 30m (400V)40A · 35m (400V)40A · 40m (400V)40A · 45m (400V)40A · 50m (400V)40A · 60m (400V)40A · 70m (400V)10A · 300m (400V)16A · 300m (400V)20A · 300m (400V)25A · 300m (400V)32A · 300m (400V)50A · 300m (400V)63A · 300m (400V)80A · 300m (400V)100A · 300m (400V)125A · 300m (400V)160A · 300m (400V)200A · 300m (400V)