Kabeltverrsnitt for 250 Ampere ved 40 Meter (230V — NEK 400)
Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 250 A over 40 m ved 230V.
Copper Cable (≤3% Drop)120 mm²Drop: 3.57V (1.55%)
Aluminum Cable (≤3% Drop)185 mm²Drop: 3.82V (1.66%)
Voltage at Load226.4 VLine Loss: 891.7 W
Max Power & Breaker57.5 kW250A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 250A at 40m
| 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 | 285.33 V (124.06%) | 0.0 V | 470.67 V (204.64%) | 71333.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 171.2 V (74.43%) | 58.8 V | 282.4 V (122.78%) | 42800.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 107.0 V (46.52%) | 123.0 V | 176.5 V (76.74%) | 26750.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 71.33 V (31.01%) | 158.7 V | 117.67 V (51.16%) | 17833.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 42.8 V (18.61%) | 187.2 V | 70.6 V (30.7%) | 10700.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 26.75 V (11.63%) | 203.2 V | 44.12 V (19.18%) | 6687.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 17.12 V (7.44%) | 212.9 V | 28.24 V (12.28%) | 4280.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 12.23 V (5.32%) | 217.8 V | 20.17 V (8.77%) | 3057.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 8.56 V (3.72%) | 221.4 V | 14.12 V (6.14%) | 2140.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 6.11 V (2.66%) | 223.9 V | 10.09 V (4.39%) | 1528.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 4.51 V (1.96%) | 225.5 V | 7.43 V (3.23%) | 1126.3 W | Drop High |
| 120 mm² | 269 A | 210 A | 3.57 V (1.55%) | 226.4 V | 5.88 V (2.56%) | 891.7 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 2.85 V (1.24%) | 227.1 V | 4.71 V (2.05%) | 713.3 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 2.31 V (1.01%) | 227.7 V | 3.82 V (1.66%) | 578.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.78 V (0.78%) | 228.2 V | 2.94 V (1.28%) | 445.8 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.43 V (0.62%) | 228.6 V | 2.35 V (1.02%) | 356.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.07 V (0.47%) | 228.9 V | 1.76 V (0.77%) | 267.5 W | ✓ OK (≤3%) |
FAQ — Kabeltverrsnitt for 250 Ampere ved 40 Meter (230V — NEK 400)
Hvilket kabeltverrsnitt må jeg bruke for 250A over 40 meter (230V)?
Etter NEK 400 anbefales 120 mm² kobberkabel for 250A ved 40 meter (230V), som gir et spenningsfall på 3.57V (1.55%).
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 · 25m (230V)250A · 30m (230V)250A · 35m (230V)250A · 45m (230V)250A · 50m (230V)250A · 60m (230V)250A · 70m (230V)10A · 40m (230V)16A · 40m (230V)20A · 40m (230V)25A · 40m (230V)32A · 40m (230V)40A · 40m (230V)50A · 40m (230V)63A · 40m (230V)80A · 40m (230V)100A · 40m (230V)125A · 40m (230V)160A · 40m (230V)200A · 40m (230V)