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

Kabeltværsnit for 50 Ampere ved 25 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 50 A over 25 m ved 400V.

Copper Cable (≤3% Drop)10 mm²Drop: 4.63V (1.16%)

Aluminum Cable (≤3% Drop)16 mm²Drop: 4.78V (1.19%)

Voltage at Load395.4 VLine Loss: 401.2 W

Max Power & Breaker34.64 kW50A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 50A at 25m

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	30.89 V (7.72%)	369.1 V	50.95 V (12.74%)	2675.0 W	Drop High
2.5 mm²	24 A	18 A	18.53 V (4.63%)	381.5 V	30.57 V (7.64%)	1605.0 W	Drop High
4 mm²	32 A	25 A	11.58 V (2.9%)	388.4 V	19.11 V (4.78%)	1003.1 W	Drop High
6 mm²	41 A	32 A	7.72 V (1.93%)	392.3 V	12.74 V (3.18%)	668.7 W	Drop High
10 mm²	57 A	44 A	4.63 V (1.16%)	395.4 V	7.64 V (1.91%)	401.2 W	✓ OK (≤3%)
16 mm²	76 A	59 A	2.9 V (0.72%)	397.1 V	4.78 V (1.19%)	250.8 W	✓ OK (≤3%)
25 mm²	101 A	78 A	1.85 V (0.46%)	398.1 V	3.06 V (0.76%)	160.5 W	✓ OK (≤3%)
35 mm²	125 A	97 A	1.32 V (0.33%)	398.7 V	2.18 V (0.55%)	114.6 W	✓ OK (≤3%)
50 mm²	151 A	118 A	0.93 V (0.23%)	399.1 V	1.53 V (0.38%)	80.2 W	✓ OK (≤3%)
70 mm²	192 A	150 A	0.66 V (0.17%)	399.3 V	1.09 V (0.27%)	57.3 W	✓ OK (≤3%)
95 mm²	232 A	181 A	0.49 V (0.12%)	399.5 V	0.8 V (0.2%)	42.2 W	✓ OK (≤3%)
120 mm²	269 A	210 A	0.39 V (0.1%)	399.6 V	0.64 V (0.16%)	33.4 W	✓ OK (≤3%)
150 mm²	309 A	241 A	0.31 V (0.08%)	399.7 V	0.51 V (0.13%)	26.7 W	✓ OK (≤3%)
185 mm²	353 A	275 A	0.25 V (0.06%)	399.7 V	0.41 V (0.1%)	21.7 W	✓ OK (≤3%)
240 mm²	415 A	324 A	0.19 V (0.05%)	399.8 V	0.32 V (0.08%)	16.7 W	✓ OK (≤3%)
300 mm²	477 A	372 A	0.15 V (0.04%)	399.8 V	0.25 V (0.06%)	13.4 W	✓ OK (≤3%)
400 mm²	570 A	445 A	0.12 V (0.03%)	399.9 V	0.19 V (0.05%)	10.0 W	✓ OK (≤3%)

Til 50 Ampere over 25 meter ved 400V anbefales 10 mm² kobberkabel (spændingsfald 4.63V / 1.16%).

Det svarer til 34.64 kW med en anbefalet sikring på 50A.