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

Kabeltværsnit for 63 Ampere ved 20 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 63 A over 20 m ved 400V.

Copper Cable (≤3% Drop)16 mm²Drop: 2.92V (0.73%)

Aluminum Cable (≤3% Drop)25 mm²Drop: 3.08V (0.77%)

Voltage at Load397.1 VLine Loss: 318.5 W

Max Power & Breaker43.65 kW63A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A 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	31.14 V (7.78%)	368.9 V	51.36 V (12.84%)	3397.5 W	Drop High
2.5 mm²	24 A	18 A	18.68 V (4.67%)	381.3 V	30.82 V (7.7%)	2038.5 W	Drop High
4 mm²	32 A	25 A	11.68 V (2.92%)	388.3 V	19.26 V (4.81%)	1274.0 W	Drop High
6 mm²	41 A	32 A	7.78 V (1.95%)	392.2 V	12.84 V (3.21%)	849.4 W	Drop High
10 mm²	57 A	44 A	4.67 V (1.17%)	395.3 V	7.7 V (1.93%)	509.6 W	Drop High
16 mm²	76 A	59 A	2.92 V (0.73%)	397.1 V	4.81 V (1.2%)	318.5 W	✓ OK (≤3%)
25 mm²	101 A	78 A	1.87 V (0.47%)	398.1 V	3.08 V (0.77%)	203.8 W	✓ OK (≤3%)
35 mm²	125 A	97 A	1.33 V (0.33%)	398.7 V	2.2 V (0.55%)	145.6 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.93 V (0.23%)	399.1 V	1.54 V (0.39%)	101.9 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.67 V (0.17%)	399.3 V	1.1 V (0.28%)	72.8 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.49 V (0.12%)	399.5 V	0.81 V (0.2%)	53.6 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.39 V (0.1%)	399.6 V	0.64 V (0.16%)	42.5 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.31 V (0.08%)	399.7 V	0.51 V (0.13%)	34.0 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.25 V (0.06%)	399.7 V	0.42 V (0.1%)	27.5 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.19 V (0.05%)	399.8 V	0.32 V (0.08%)	21.2 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.16 V (0.04%)	399.8 V	0.26 V (0.06%)	17.0 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.12 V (0.03%)	399.9 V	0.19 V (0.05%)	12.7 W	✓ OK (≤3%)

Til 63 Ampere over 20 meter ved 400V anbefales 16 mm² kobberkabel (spændingsfald 2.92V / 0.73%).

Det svarer til 43.65 kW med en anbefalet sikring på 63A.