⚡ 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 225 Ampere ved 300 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 225 A over 300 m ved 400V.

Copper Cable (≤3% Drop)240 mm²Drop: 10.42V (2.61%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 10.32V (2.58%)
Voltage at Load389.6 VLine Loss: 4062.7 W
Max Power & Breaker155.88 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 300m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A1667.96 V (416.99%)0.0 V2751.36 V (687.84%)650025.0 WDrop High
2.5 mm²24 A18 A1000.78 V (250.19%)0.0 V1650.82 V (412.7%)390015.0 WDrop High
4 mm²32 A25 A625.49 V (156.37%)0.0 V1031.76 V (257.94%)243759.4 WDrop High
6 mm²41 A32 A416.99 V (104.25%)0.0 V687.84 V (171.96%)162506.2 WDrop High
10 mm²57 A44 A250.19 V (62.55%)149.8 V412.7 V (103.18%)97503.8 WDrop High
16 mm²76 A59 A156.37 V (39.09%)243.6 V257.94 V (64.49%)60939.8 WDrop High
25 mm²101 A78 A100.08 V (25.02%)299.9 V165.08 V (41.27%)39001.5 WDrop High
35 mm²125 A97 A71.48 V (17.87%)328.5 V117.92 V (29.48%)27858.2 WDrop High
50 mm²151 A118 A50.04 V (12.51%)350.0 V82.54 V (20.64%)19500.7 WDrop High
70 mm²192 A150 A35.74 V (8.94%)364.3 V58.96 V (14.74%)13929.1 WDrop High
95 mm²232 A181 A26.34 V (6.58%)373.7 V43.44 V (10.86%)10263.6 WDrop High
120 mm²269 A210 A20.85 V (5.21%)379.2 V34.39 V (8.6%)8125.3 WDrop High
150 mm²309 A241 A16.68 V (4.17%)383.3 V27.51 V (6.88%)6500.2 W~ ≤5%
185 mm²353 A275 A13.52 V (3.38%)386.5 V22.31 V (5.58%)5270.5 W~ ≤5%
240 mm²415 A324 A10.42 V (2.61%)389.6 V17.2 V (4.3%)4062.7 W✓ OK (≤3%)
300 mm²477 A372 A8.34 V (2.08%)391.7 V13.76 V (3.44%)3250.1 W✓ OK (≤3%)
400 mm²570 A445 A6.25 V (1.56%)393.7 V10.32 V (2.58%)2437.6 W✓ OK (≤3%)

FAQ — Kabeltværsnit for 225 Ampere ved 300 Meter (400V)

Hvilket kabeltværsnit kræves til 225A ved 300 meter (400V)?

Til 225 Ampere over 300 meter ved 400V anbefales 240 mm² kobberkabel (spændingsfald 10.42V / 2.61%).

Hvor mange kW svarer 225A ved 400V til?

Det svarer til 155.88 kW med en anbefalet sikring på 225A.