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

Kabeltværsnit for 80 Ampere ved 45 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 80 A over 45 m ved 400V.

Copper Cable (≤3% Drop)25 mm²Drop: 5.34V (1.33%)

Aluminum Cable (≤3% Drop)35 mm²Drop: 6.29V (1.57%)

Voltage at Load394.7 VLine Loss: 739.6 W

Max Power & Breaker55.43 kW80A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 80A at 45m

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	88.96 V (22.24%)	311.0 V	146.74 V (36.68%)	12326.4 W	Drop High
2.5 mm²	24 A	18 A	53.37 V (13.34%)	346.6 V	88.04 V (22.01%)	7395.8 W	Drop High
4 mm²	32 A	25 A	33.36 V (8.34%)	366.6 V	55.03 V (13.76%)	4622.4 W	Drop High
6 mm²	41 A	32 A	22.24 V (5.56%)	377.8 V	36.68 V (9.17%)	3081.6 W	Drop High
10 mm²	57 A	44 A	13.34 V (3.34%)	386.7 V	22.01 V (5.5%)	1849.0 W	Drop High
16 mm²	76 A	59 A	8.34 V (2.08%)	391.7 V	13.76 V (3.44%)	1155.6 W	Drop High
25 mm²	101 A	78 A	5.34 V (1.33%)	394.7 V	8.8 V (2.2%)	739.6 W	✓ OK (≤3%)
35 mm²	125 A	97 A	3.81 V (0.95%)	396.2 V	6.29 V (1.57%)	528.3 W	✓ OK (≤3%)
50 mm²	151 A	118 A	2.67 V (0.67%)	397.3 V	4.4 V (1.1%)	369.8 W	✓ OK (≤3%)
70 mm²	192 A	150 A	1.91 V (0.48%)	398.1 V	3.14 V (0.79%)	264.1 W	✓ OK (≤3%)
95 mm²	232 A	181 A	1.4 V (0.35%)	398.6 V	2.32 V (0.58%)	194.6 W	✓ OK (≤3%)
120 mm²	269 A	210 A	1.11 V (0.28%)	398.9 V	1.83 V (0.46%)	154.1 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.89 V (0.22%)	399.1 V	1.47 V (0.37%)	123.3 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.72 V (0.18%)	399.3 V	1.19 V (0.3%)	99.9 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.56 V (0.14%)	399.4 V	0.92 V (0.23%)	77.0 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.44 V (0.11%)	399.6 V	0.73 V (0.18%)	61.6 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.33 V (0.08%)	399.7 V	0.55 V (0.14%)	46.2 W	✓ OK (≤3%)

Til 80 Ampere over 45 meter ved 400V anbefales 25 mm² kobberkabel (spændingsfald 5.34V / 1.33%).

Det svarer til 55.43 kW med en anbefalet sikring på 80A.