⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-24)
⚡ IEC 60364-5-52 · DIN VDE · NEK 400 · SS 436 40 00

Kabeltværsnit for 30 Ampere ved 400 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 30 A over 400 m ved 400V.

Copper Cable (≤3% Drop)50 mm²Drop: 8.9V (2.22%)
Aluminum Cable (≤3% Drop)70 mm²Drop: 10.48V (2.62%)
Voltage at Load391.1 VLine Loss: 462.2 W
Max Power & Breaker20.78 kW30A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 30A at 400m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A296.53 V (74.13%)103.5 V489.13 V (122.28%)15408.0 WDrop High
2.5 mm²24 A18 A177.92 V (44.48%)222.1 V293.48 V (73.37%)9244.8 WDrop High
4 mm²32 A25 A111.2 V (27.8%)288.8 V183.42 V (45.86%)5778.0 WDrop High
6 mm²41 A32 A74.13 V (18.53%)325.9 V122.28 V (30.57%)3852.0 WDrop High
10 mm²57 A44 A44.48 V (11.12%)355.5 V73.37 V (18.34%)2311.2 WDrop High
16 mm²76 A59 A27.8 V (6.95%)372.2 V45.86 V (11.46%)1444.5 WDrop High
25 mm²101 A78 A17.79 V (4.45%)382.2 V29.35 V (7.34%)924.5 W~ ≤5%
35 mm²125 A97 A12.71 V (3.18%)387.3 V20.96 V (5.24%)660.3 W~ ≤5%
50 mm²151 A118 A8.9 V (2.22%)391.1 V14.67 V (3.67%)462.2 W✓ OK (≤3%)
70 mm²192 A150 A6.35 V (1.59%)393.6 V10.48 V (2.62%)330.2 W✓ OK (≤3%)
95 mm²232 A181 A4.68 V (1.17%)395.3 V7.72 V (1.93%)243.3 W✓ OK (≤3%)
120 mm²269 A210 A3.71 V (0.93%)396.3 V6.11 V (1.53%)192.6 W✓ OK (≤3%)
150 mm²309 A241 A2.97 V (0.74%)397.0 V4.89 V (1.22%)154.1 W✓ OK (≤3%)
185 mm²353 A275 A2.4 V (0.6%)397.6 V3.97 V (0.99%)124.9 W✓ OK (≤3%)
240 mm²415 A324 A1.85 V (0.46%)398.1 V3.06 V (0.76%)96.3 W✓ OK (≤3%)
300 mm²477 A372 A1.48 V (0.37%)398.5 V2.45 V (0.61%)77.0 W✓ OK (≤3%)
400 mm²570 A445 A1.11 V (0.28%)398.9 V1.83 V (0.46%)57.8 W✓ OK (≤3%)

FAQ — Kabeltværsnit for 30 Ampere ved 400 Meter (400V)

Hvilket kabeltværsnit kræves til 30A ved 400 meter (400V)?

Til 30 Ampere over 400 meter ved 400V anbefales 50 mm² kobberkabel (spændingsfald 8.9V / 2.22%).

Hvor mange kW svarer 30A ved 400V til?

Det svarer til 20.78 kW med en anbefalet sikring på 30A.