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

Kabeltværsnit for 32 Ampere ved 20 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 32 A over 20 m ved 400V.

Copper Cable (≤3% Drop)4 mm²Drop: 5.93V (1.48%)

Aluminum Cable (≤3% Drop)6 mm²Drop: 6.52V (1.63%)

Voltage at Load394.1 VLine Loss: 328.7 W

Max Power & Breaker22.17 kW32A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A 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	15.81 V (3.95%)	384.2 V	26.09 V (6.52%)	876.5 W	Drop High
2.5 mm²	24 A	18 A	9.49 V (2.37%)	390.5 V	15.65 V (3.91%)	525.9 W	Drop High
4 mm²	32 A	25 A	5.93 V (1.48%)	394.1 V	9.78 V (2.45%)	328.7 W	✓ OK (≤3%)
6 mm²	41 A	32 A	3.95 V (0.99%)	396.0 V	6.52 V (1.63%)	219.1 W	✓ OK (≤3%)
10 mm²	57 A	44 A	2.37 V (0.59%)	397.6 V	3.91 V (0.98%)	131.5 W	✓ OK (≤3%)
16 mm²	76 A	59 A	1.48 V (0.37%)	398.5 V	2.45 V (0.61%)	82.2 W	✓ OK (≤3%)
25 mm²	101 A	78 A	0.95 V (0.24%)	399.1 V	1.57 V (0.39%)	52.6 W	✓ OK (≤3%)
35 mm²	125 A	97 A	0.68 V (0.17%)	399.3 V	1.12 V (0.28%)	37.6 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.47 V (0.12%)	399.5 V	0.78 V (0.2%)	26.3 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.34 V (0.08%)	399.7 V	0.56 V (0.14%)	18.8 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.25 V (0.06%)	399.8 V	0.41 V (0.1%)	13.8 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.2 V (0.05%)	399.8 V	0.33 V (0.08%)	11.0 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.16 V (0.04%)	399.8 V	0.26 V (0.07%)	8.8 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.13 V (0.03%)	399.9 V	0.21 V (0.05%)	7.1 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.1 V (0.02%)	399.9 V	0.16 V (0.04%)	5.5 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.08 V (0.02%)	399.9 V	0.13 V (0.03%)	4.4 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.06 V (0.01%)	399.9 V	0.1 V (0.02%)	3.3 W	✓ OK (≤3%)

Til 32 Ampere over 20 meter ved 400V anbefales 4 mm² kobberkabel (spændingsfald 5.93V / 1.48%).

Det svarer til 22.17 kW med en anbefalet sikring på 32A.