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

Kabeltværsnit for 45 Ampere ved 5 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 45 A over 5 m ved 400V.

Copper Cable (≤3% Drop)10 mm²Drop: 0.83V (0.21%)

Aluminum Cable (≤3% Drop)16 mm²Drop: 0.86V (0.21%)

Voltage at Load399.2 VLine Loss: 65.0 W

Max Power & Breaker31.18 kW45A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 45A at 5m

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	5.56 V (1.39%)	394.4 V	9.17 V (2.29%)	433.3 W	Drop High
2.5 mm²	24 A	18 A	3.34 V (0.83%)	396.7 V	5.5 V (1.38%)	260.0 W	Drop High
4 mm²	32 A	25 A	2.08 V (0.52%)	397.9 V	3.44 V (0.86%)	162.5 W	Drop High
6 mm²	41 A	32 A	1.39 V (0.35%)	398.6 V	2.29 V (0.57%)	108.3 W	Drop High
10 mm²	57 A	44 A	0.83 V (0.21%)	399.2 V	1.38 V (0.34%)	65.0 W	✓ OK (≤3%)
16 mm²	76 A	59 A	0.52 V (0.13%)	399.5 V	0.86 V (0.21%)	40.6 W	✓ OK (≤3%)
25 mm²	101 A	78 A	0.33 V (0.08%)	399.7 V	0.55 V (0.14%)	26.0 W	✓ OK (≤3%)
35 mm²	125 A	97 A	0.24 V (0.06%)	399.8 V	0.39 V (0.1%)	18.6 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.17 V (0.04%)	399.8 V	0.28 V (0.07%)	13.0 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.12 V (0.03%)	399.9 V	0.2 V (0.05%)	9.3 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.09 V (0.02%)	399.9 V	0.14 V (0.04%)	6.8 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.07 V (0.02%)	399.9 V	0.11 V (0.03%)	5.4 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.06 V (0.01%)	399.9 V	0.09 V (0.02%)	4.3 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.05 V (0.01%)	400.0 V	0.07 V (0.02%)	3.5 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.03 V (0.01%)	400.0 V	0.06 V (0.01%)	2.7 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.03 V (0.01%)	400.0 V	0.05 V (0.01%)	2.2 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.02 V (0.01%)	400.0 V	0.03 V (0.01%)	1.6 W	✓ OK (≤3%)

Til 45 Ampere over 5 meter ved 400V anbefales 10 mm² kobberkabel (spændingsfald 0.83V / 0.21%).

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