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

Kabeltværsnit for 90 Ampere ved 20 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 90 A over 20 m ved 400V.

Copper Cable (≤3% Drop)25 mm²Drop: 2.67V (0.67%)

Aluminum Cable (≤3% Drop)35 mm²Drop: 3.14V (0.79%)

Voltage at Load397.3 VLine Loss: 416.0 W

Max Power & Breaker62.35 kW90A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 90A 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	44.48 V (11.12%)	355.5 V	73.37 V (18.34%)	6933.6 W	Drop High
2.5 mm²	24 A	18 A	26.69 V (6.67%)	373.3 V	44.02 V (11.01%)	4160.2 W	Drop High
4 mm²	32 A	25 A	16.68 V (4.17%)	383.3 V	27.51 V (6.88%)	2600.1 W	Drop High
6 mm²	41 A	32 A	11.12 V (2.78%)	388.9 V	18.34 V (4.59%)	1733.4 W	Drop High
10 mm²	57 A	44 A	6.67 V (1.67%)	393.3 V	11.01 V (2.75%)	1040.0 W	Drop High
16 mm²	76 A	59 A	4.17 V (1.04%)	395.8 V	6.88 V (1.72%)	650.0 W	Drop High
25 mm²	101 A	78 A	2.67 V (0.67%)	397.3 V	4.4 V (1.1%)	416.0 W	✓ OK (≤3%)
35 mm²	125 A	97 A	1.91 V (0.48%)	398.1 V	3.14 V (0.79%)	297.2 W	✓ OK (≤3%)
50 mm²	151 A	118 A	1.33 V (0.33%)	398.7 V	2.2 V (0.55%)	208.0 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.95 V (0.24%)	399.0 V	1.57 V (0.39%)	148.6 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.7 V (0.18%)	399.3 V	1.16 V (0.29%)	109.5 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.56 V (0.14%)	399.4 V	0.92 V (0.23%)	86.7 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.44 V (0.11%)	399.6 V	0.73 V (0.18%)	69.3 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.36 V (0.09%)	399.6 V	0.59 V (0.15%)	56.2 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.28 V (0.07%)	399.7 V	0.46 V (0.11%)	43.3 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.22 V (0.06%)	399.8 V	0.37 V (0.09%)	34.7 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.17 V (0.04%)	399.8 V	0.28 V (0.07%)	26.0 W	✓ OK (≤3%)

Til 90 Ampere over 20 meter ved 400V anbefales 25 mm² kobberkabel (spændingsfald 2.67V / 0.67%).

Det svarer til 62.35 kW med en anbefalet sikring på 90A.