Kabeltverrsnitt for 250 Ampere ved 25 Meter (230V — NEK 400)
Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 250 A over 25 m ved 230V.
Copper Cable (≤3% Drop)120 mm²Drop: 2.23V (0.97%)
Aluminum Cable (≤3% Drop)185 mm²Drop: 2.39V (1.04%)
Voltage at Load227.8 VLine Loss: 557.3 W
Max Power & Breaker57.5 kW250A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 250A at 25m
| 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 | 178.33 V (77.54%) | 51.7 V | 294.17 V (127.9%) | 44583.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 107.0 V (46.52%) | 123.0 V | 176.5 V (76.74%) | 26750.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 66.87 V (29.08%) | 163.1 V | 110.31 V (47.96%) | 16718.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 44.58 V (19.38%) | 185.4 V | 73.54 V (31.97%) | 11145.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 26.75 V (11.63%) | 203.2 V | 44.12 V (19.18%) | 6687.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 16.72 V (7.27%) | 213.3 V | 27.58 V (11.99%) | 4179.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 10.7 V (4.65%) | 219.3 V | 17.65 V (7.67%) | 2675.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 7.64 V (3.32%) | 222.4 V | 12.61 V (5.48%) | 1910.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 5.35 V (2.33%) | 224.7 V | 8.82 V (3.84%) | 1337.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 3.82 V (1.66%) | 226.2 V | 6.3 V (2.74%) | 955.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 2.82 V (1.22%) | 227.2 V | 4.64 V (2.02%) | 703.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 2.23 V (0.97%) | 227.8 V | 3.68 V (1.6%) | 557.3 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 1.78 V (0.78%) | 228.2 V | 2.94 V (1.28%) | 445.8 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.45 V (0.63%) | 228.6 V | 2.39 V (1.04%) | 361.5 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.11 V (0.48%) | 228.9 V | 1.84 V (0.8%) | 278.6 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.89 V (0.39%) | 229.1 V | 1.47 V (0.64%) | 222.9 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.67 V (0.29%) | 229.3 V | 1.1 V (0.48%) | 167.2 W | ✓ OK (≤3%) |
FAQ — Kabeltverrsnitt for 250 Ampere ved 25 Meter (230V — NEK 400)
Hvilket kabeltverrsnitt må jeg bruke for 250A over 25 meter (230V)?
Etter NEK 400 anbefales 120 mm² kobberkabel for 250A ved 25 meter (230V), som gir et spenningsfall på 2.23V (0.97%).
Hvor mange kW tåler 250A ved 230V?
Kursen leverer opptil 57.5 kW med 250A vern.
Related Lengths & Currents (230V)
250A · 5m (230V)250A · 10m (230V)250A · 15m (230V)250A · 20m (230V)250A · 30m (230V)250A · 35m (230V)250A · 40m (230V)250A · 45m (230V)250A · 50m (230V)250A · 60m (230V)250A · 70m (230V)10A · 25m (230V)16A · 25m (230V)20A · 25m (230V)25A · 25m (230V)32A · 25m (230V)40A · 25m (230V)50A · 25m (230V)63A · 25m (230V)80A · 25m (230V)100A · 25m (230V)125A · 25m (230V)160A · 25m (230V)200A · 25m (230V)