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

Kabeltværsnit for 35 Ampere ved 20 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 35 A over 20 m ved 400V.

Copper Cable (≤3% Drop)6 mm²Drop: 4.32V (1.08%)

Aluminum Cable (≤3% Drop)10 mm²Drop: 4.28V (1.07%)

Voltage at Load395.7 VLine Loss: 262.1 W

Max Power & Breaker24.25 kW35A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A 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	17.3 V (4.32%)	382.7 V	28.53 V (7.13%)	1048.6 W	Drop High
2.5 mm²	24 A	18 A	10.38 V (2.59%)	389.6 V	17.12 V (4.28%)	629.2 W	Drop High
4 mm²	32 A	25 A	6.49 V (1.62%)	393.5 V	10.7 V (2.67%)	393.2 W	Drop High
6 mm²	41 A	32 A	4.32 V (1.08%)	395.7 V	7.13 V (1.78%)	262.1 W	✓ OK (≤3%)
10 mm²	57 A	44 A	2.59 V (0.65%)	397.4 V	4.28 V (1.07%)	157.3 W	✓ OK (≤3%)
16 mm²	76 A	59 A	1.62 V (0.41%)	398.4 V	2.67 V (0.67%)	98.3 W	✓ OK (≤3%)
25 mm²	101 A	78 A	1.04 V (0.26%)	399.0 V	1.71 V (0.43%)	62.9 W	✓ OK (≤3%)
35 mm²	125 A	97 A	0.74 V (0.19%)	399.3 V	1.22 V (0.31%)	44.9 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.52 V (0.13%)	399.5 V	0.86 V (0.21%)	31.5 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.37 V (0.09%)	399.6 V	0.61 V (0.15%)	22.5 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.27 V (0.07%)	399.7 V	0.45 V (0.11%)	16.6 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.22 V (0.05%)	399.8 V	0.36 V (0.09%)	13.1 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.17 V (0.04%)	399.8 V	0.29 V (0.07%)	10.5 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.14 V (0.04%)	399.9 V	0.23 V (0.06%)	8.5 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.11 V (0.03%)	399.9 V	0.18 V (0.04%)	6.6 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.09 V (0.02%)	399.9 V	0.14 V (0.04%)	5.2 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.06 V (0.02%)	399.9 V	0.11 V (0.03%)	3.9 W	✓ OK (≤3%)

Til 35 Ampere over 20 meter ved 400V anbefales 6 mm² kobberkabel (spændingsfald 4.32V / 1.08%).

Det svarer til 24.25 kW med en anbefalet sikring på 35A.