⚡ 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 300 Meter (230V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 25 A over 300 m ved 230V.

Copper Cable (≤3% Drop)50 mm²Drop: 6.42V (2.79%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 5.57V (2.42%)
Voltage at Load223.6 VLine Loss: 160.5 W
Max Power & Breaker5.75 kW25A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 25A at 300m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A214.0 V (93.04%)16.0 V353.0 V (153.48%)5350.0 WDrop High
2.5 mm²24 A18 A128.4 V (55.83%)101.6 V211.8 V (92.09%)3210.0 WDrop High
4 mm²32 A25 A80.25 V (34.89%)149.8 V132.38 V (57.55%)2006.2 WDrop High
6 mm²41 A32 A53.5 V (23.26%)176.5 V88.25 V (38.37%)1337.5 WDrop High
10 mm²57 A44 A32.1 V (13.96%)197.9 V52.95 V (23.02%)802.5 WDrop High
16 mm²76 A59 A20.06 V (8.72%)209.9 V33.09 V (14.39%)501.6 WDrop High
25 mm²101 A78 A12.84 V (5.58%)217.2 V21.18 V (9.21%)321.0 WDrop High
35 mm²125 A97 A9.17 V (3.99%)220.8 V15.13 V (6.58%)229.3 W~ ≤5%
50 mm²151 A118 A6.42 V (2.79%)223.6 V10.59 V (4.6%)160.5 W✓ OK (≤3%)
70 mm²192 A150 A4.59 V (1.99%)225.4 V7.56 V (3.29%)114.6 W✓ OK (≤3%)
95 mm²232 A181 A3.38 V (1.47%)226.6 V5.57 V (2.42%)84.5 W✓ OK (≤3%)
120 mm²269 A210 A2.67 V (1.16%)227.3 V4.41 V (1.92%)66.9 W✓ OK (≤3%)
150 mm²309 A241 A2.14 V (0.93%)227.9 V3.53 V (1.53%)53.5 W✓ OK (≤3%)
185 mm²353 A275 A1.74 V (0.75%)228.3 V2.86 V (1.24%)43.4 W✓ OK (≤3%)
240 mm²415 A324 A1.34 V (0.58%)228.7 V2.21 V (0.96%)33.4 W✓ OK (≤3%)
300 mm²477 A372 A1.07 V (0.47%)228.9 V1.76 V (0.77%)26.8 W✓ OK (≤3%)
400 mm²570 A445 A0.8 V (0.35%)229.2 V1.32 V (0.58%)20.1 W✓ OK (≤3%)

FAQ — Kabeltværsnit for 25 Ampere ved 300 Meter (230V)

Hvilket kabeltværsnit kræves til 25A ved 300 meter (230V)?

Til 25 Ampere over 300 meter ved 230V anbefales 50 mm² kobberkabel (spændingsfald 6.42V / 2.79%).

Hvor mange kW svarer 25A ved 230V til?

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