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

Kabeltværsnit for 40 Ampere ved 15 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 40 A over 15 m ved 400V.

Copper Cable (≤3% Drop)6 mm²Drop: 3.71V (0.93%)

Aluminum Cable (≤3% Drop)10 mm²Drop: 3.67V (0.92%)

Voltage at Load396.3 VLine Loss: 256.8 W

Max Power & Breaker27.71 kW40A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 40A at 15m

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	14.83 V (3.71%)	385.2 V	24.46 V (6.11%)	1027.2 W	Drop High
2.5 mm²	24 A	18 A	8.9 V (2.22%)	391.1 V	14.67 V (3.67%)	616.3 W	Drop High
4 mm²	32 A	25 A	5.56 V (1.39%)	394.4 V	9.17 V (2.29%)	385.2 W	Drop High
6 mm²	41 A	32 A	3.71 V (0.93%)	396.3 V	6.11 V (1.53%)	256.8 W	✓ OK (≤3%)
10 mm²	57 A	44 A	2.22 V (0.56%)	397.8 V	3.67 V (0.92%)	154.1 W	✓ OK (≤3%)
16 mm²	76 A	59 A	1.39 V (0.35%)	398.6 V	2.29 V (0.57%)	96.3 W	✓ OK (≤3%)
25 mm²	101 A	78 A	0.89 V (0.22%)	399.1 V	1.47 V (0.37%)	61.6 W	✓ OK (≤3%)
35 mm²	125 A	97 A	0.64 V (0.16%)	399.4 V	1.05 V (0.26%)	44.0 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.44 V (0.11%)	399.6 V	0.73 V (0.18%)	30.8 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.32 V (0.08%)	399.7 V	0.52 V (0.13%)	22.0 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.23 V (0.06%)	399.8 V	0.39 V (0.1%)	16.2 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.19 V (0.05%)	399.8 V	0.31 V (0.08%)	12.8 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.15 V (0.04%)	399.9 V	0.24 V (0.06%)	10.3 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.12 V (0.03%)	399.9 V	0.2 V (0.05%)	8.3 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.09 V (0.02%)	399.9 V	0.15 V (0.04%)	6.4 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.07 V (0.02%)	399.9 V	0.12 V (0.03%)	5.1 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.06 V (0.01%)	399.9 V	0.09 V (0.02%)	3.9 W	✓ OK (≤3%)

Til 40 Ampere over 15 meter ved 400V anbefales 6 mm² kobberkabel (spændingsfald 3.71V / 0.93%).

Det svarer til 27.71 kW med en anbefalet sikring på 40A.