⚡ 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 125 Ampere ved 35 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 125 A over 35 m ved 400V.

Copper Cable (≤3% Drop)35 mm²Drop: 4.63V (1.16%)
Aluminum Cable (≤3% Drop)70 mm²Drop: 3.82V (0.96%)
Voltage at Load395.4 VLine Loss: 1003.1 W
Max Power & Breaker86.6 kW125A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 125A at 35m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A108.11 V (27.03%)291.9 V178.33 V (44.58%)23406.2 WDrop High
2.5 mm²24 A18 A64.87 V (16.22%)335.1 V107.0 V (26.75%)14043.7 WDrop High
4 mm²32 A25 A40.54 V (10.14%)359.5 V66.87 V (16.72%)8777.3 WDrop High
6 mm²41 A32 A27.03 V (6.76%)373.0 V44.58 V (11.15%)5851.6 WDrop High
10 mm²57 A44 A16.22 V (4.05%)383.8 V26.75 V (6.69%)3510.9 WDrop High
16 mm²76 A59 A10.14 V (2.53%)389.9 V16.72 V (4.18%)2194.3 WDrop High
25 mm²101 A78 A6.49 V (1.62%)393.5 V10.7 V (2.67%)1404.4 WDrop High
35 mm²125 A97 A4.63 V (1.16%)395.4 V7.64 V (1.91%)1003.1 W✓ OK (≤3%)
50 mm²151 A118 A3.24 V (0.81%)396.8 V5.35 V (1.34%)702.2 W✓ OK (≤3%)
70 mm²192 A150 A2.32 V (0.58%)397.7 V3.82 V (0.96%)501.6 W✓ OK (≤3%)
95 mm²232 A181 A1.71 V (0.43%)398.3 V2.82 V (0.7%)369.6 W✓ OK (≤3%)
120 mm²269 A210 A1.35 V (0.34%)398.6 V2.23 V (0.56%)292.6 W✓ OK (≤3%)
150 mm²309 A241 A1.08 V (0.27%)398.9 V1.78 V (0.45%)234.1 W✓ OK (≤3%)
185 mm²353 A275 A0.88 V (0.22%)399.1 V1.45 V (0.36%)189.8 W✓ OK (≤3%)
240 mm²415 A324 A0.68 V (0.17%)399.3 V1.11 V (0.28%)146.3 W✓ OK (≤3%)
300 mm²477 A372 A0.54 V (0.14%)399.5 V0.89 V (0.22%)117.0 W✓ OK (≤3%)
400 mm²570 A445 A0.41 V (0.1%)399.6 V0.67 V (0.17%)87.8 W✓ OK (≤3%)

FAQ — Kabeltværsnit for 125 Ampere ved 35 Meter (400V)

Hvilket kabeltværsnit kræves til 125A ved 35 meter (400V)?

Til 125 Ampere over 35 meter ved 400V anbefales 35 mm² kobberkabel (spændingsfald 4.63V / 1.16%).

Hvor mange kW svarer 125A ved 400V til?

Det svarer til 86.6 kW med en anbefalet sikring på 125A.