⚡ 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 25 Ampere ved 250 Meter (230V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 25 A over 250 m ved 230V.

Copper Cable (≤3% Drop)50 mm²Drop: 5.35V (2.33%)
Aluminum Cable (≤3% Drop)70 mm²Drop: 6.3V (2.74%)
Voltage at Load224.7 VLine Loss: 133.8 W
Max Power & Breaker5.75 kW25A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 25A at 250m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A178.33 V (77.54%)51.7 V294.17 V (127.9%)4458.3 WDrop High
2.5 mm²24 A18 A107.0 V (46.52%)123.0 V176.5 V (76.74%)2675.0 WDrop High
4 mm²32 A25 A66.88 V (29.08%)163.1 V110.31 V (47.96%)1671.9 WDrop High
6 mm²41 A32 A44.58 V (19.38%)185.4 V73.54 V (31.97%)1114.6 WDrop High
10 mm²57 A44 A26.75 V (11.63%)203.2 V44.12 V (19.18%)668.7 WDrop High
16 mm²76 A59 A16.72 V (7.27%)213.3 V27.58 V (11.99%)418.0 WDrop High
25 mm²101 A78 A10.7 V (4.65%)219.3 V17.65 V (7.67%)267.5 W~ ≤5%
35 mm²125 A97 A7.64 V (3.32%)222.4 V12.61 V (5.48%)191.1 W~ ≤5%
50 mm²151 A118 A5.35 V (2.33%)224.7 V8.82 V (3.84%)133.8 W✓ OK (≤3%)
70 mm²192 A150 A3.82 V (1.66%)226.2 V6.3 V (2.74%)95.5 W✓ OK (≤3%)
95 mm²232 A181 A2.82 V (1.22%)227.2 V4.64 V (2.02%)70.4 W✓ OK (≤3%)
120 mm²269 A210 A2.23 V (0.97%)227.8 V3.68 V (1.6%)55.7 W✓ OK (≤3%)
150 mm²309 A241 A1.78 V (0.78%)228.2 V2.94 V (1.28%)44.6 W✓ OK (≤3%)
185 mm²353 A275 A1.45 V (0.63%)228.6 V2.39 V (1.04%)36.1 W✓ OK (≤3%)
240 mm²415 A324 A1.11 V (0.48%)228.9 V1.84 V (0.8%)27.9 W✓ OK (≤3%)
300 mm²477 A372 A0.89 V (0.39%)229.1 V1.47 V (0.64%)22.3 W✓ OK (≤3%)
400 mm²570 A445 A0.67 V (0.29%)229.3 V1.1 V (0.48%)16.7 W✓ OK (≤3%)

FAQ — Kabeltværsnit for 25 Ampere ved 250 Meter (230V)

Hvilket kabeltværsnit kræves til 25A ved 250 meter (230V)?

Til 25 Ampere over 250 meter ved 230V anbefales 50 mm² kobberkabel (spændingsfald 5.35V / 2.33%).

Hvor mange kW svarer 25A ved 230V til?

Det svarer til 5.75 kW med en anbefalet sikring på 25A.