⚡ IEC 60364-5-52 · DIN VDE · NEK 400 · SS 436 40 00

Kabeltverrsnitt for 15 Ampere ved 20 Meter (400V — NEK 400)

Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 15 A over 20 m ved 400V.

Copper Cable (≤3% Drop)1.5 mm²Drop: 7.41V (1.85%)

Aluminum Cable (≤3% Drop)2.5 mm²Drop: 7.34V (1.83%)

Voltage at Load392.6 VLine Loss: 192.6 W

Max Power & Breaker10.39 kW15A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 15A at 20m

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	7.41 V (1.85%)	392.6 V	12.23 V (3.06%)	192.6 W	✓ OK (≤3%)
2.5 mm²	24 A	18 A	4.45 V (1.11%)	395.6 V	7.34 V (1.83%)	115.6 W	✓ OK (≤3%)
4 mm²	32 A	25 A	2.78 V (0.69%)	397.2 V	4.59 V (1.15%)	72.2 W	✓ OK (≤3%)
6 mm²	41 A	32 A	1.85 V (0.46%)	398.1 V	3.06 V (0.76%)	48.1 W	✓ OK (≤3%)
10 mm²	57 A	44 A	1.11 V (0.28%)	398.9 V	1.83 V (0.46%)	28.9 W	✓ OK (≤3%)
16 mm²	76 A	59 A	0.69 V (0.17%)	399.3 V	1.15 V (0.29%)	18.1 W	✓ OK (≤3%)
25 mm²	101 A	78 A	0.44 V (0.11%)	399.6 V	0.73 V (0.18%)	11.6 W	✓ OK (≤3%)
35 mm²	125 A	97 A	0.32 V (0.08%)	399.7 V	0.52 V (0.13%)	8.3 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.22 V (0.06%)	399.8 V	0.37 V (0.09%)	5.8 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.16 V (0.04%)	399.8 V	0.26 V (0.07%)	4.1 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.12 V (0.03%)	399.9 V	0.19 V (0.05%)	3.0 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.09 V (0.02%)	399.9 V	0.15 V (0.04%)	2.4 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.07 V (0.02%)	399.9 V	0.12 V (0.03%)	1.9 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.06 V (0.02%)	399.9 V	0.1 V (0.02%)	1.6 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.05 V (0.01%)	400.0 V	0.08 V (0.02%)	1.2 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.04 V (0.01%)	400.0 V	0.06 V (0.02%)	1.0 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.03 V (0.01%)	400.0 V	0.05 V (0.01%)	0.7 W	✓ OK (≤3%)

Etter NEK 400 anbefales 1.5 mm² kobberkabel for 15A ved 20 meter (400V), som gir et spenningsfall på 7.41V (1.85%).

Kursen leverer opptil 10.39 kW med 15A vern.