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

Kabeltværsnit for 45 Ampere ved 15 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 45 A over 15 m ved 400V.

Copper Cable (≤3% Drop)10 mm²Drop: 2.5V (0.63%)

Aluminum Cable (≤3% Drop)16 mm²Drop: 2.58V (0.64%)

Voltage at Load397.5 VLine Loss: 195.0 W

Max Power & Breaker31.18 kW45A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 45A 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	16.68 V (4.17%)	383.3 V	27.51 V (6.88%)	1300.0 W	Drop High
2.5 mm²	24 A	18 A	10.01 V (2.5%)	390.0 V	16.51 V (4.13%)	780.0 W	Drop High
4 mm²	32 A	25 A	6.25 V (1.56%)	393.7 V	10.32 V (2.58%)	487.5 W	Drop High
6 mm²	41 A	32 A	4.17 V (1.04%)	395.8 V	6.88 V (1.72%)	325.0 W	Drop High
10 mm²	57 A	44 A	2.5 V (0.63%)	397.5 V	4.13 V (1.03%)	195.0 W	✓ OK (≤3%)
16 mm²	76 A	59 A	1.56 V (0.39%)	398.4 V	2.58 V (0.64%)	121.9 W	✓ OK (≤3%)
25 mm²	101 A	78 A	1.0 V (0.25%)	399.0 V	1.65 V (0.41%)	78.0 W	✓ OK (≤3%)
35 mm²	125 A	97 A	0.71 V (0.18%)	399.3 V	1.18 V (0.29%)	55.7 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.5 V (0.13%)	399.5 V	0.83 V (0.21%)	39.0 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.36 V (0.09%)	399.6 V	0.59 V (0.15%)	27.9 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.26 V (0.07%)	399.7 V	0.43 V (0.11%)	20.5 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.21 V (0.05%)	399.8 V	0.34 V (0.09%)	16.3 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.17 V (0.04%)	399.8 V	0.28 V (0.07%)	13.0 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.14 V (0.03%)	399.9 V	0.22 V (0.06%)	10.5 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.1 V (0.03%)	399.9 V	0.17 V (0.04%)	8.1 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.08 V (0.02%)	399.9 V	0.14 V (0.03%)	6.5 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.06 V (0.02%)	399.9 V	0.1 V (0.03%)	4.9 W	✓ OK (≤3%)

Til 45 Ampere over 15 meter ved 400V anbefales 10 mm² kobberkabel (spændingsfald 2.5V / 0.63%).

Det svarer til 31.18 kW med en anbefalet sikring på 45A.