⚡ 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 40 Ampere ved 90 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 40 A over 90 m ved 400V.

Copper Cable (≤3% Drop)16 mm²Drop: 8.34V (2.08%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 8.8V (2.2%)
Voltage at Load391.7 VLine Loss: 577.8 W
Max Power & Breaker27.71 kW40A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 40A at 90m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A88.96 V (22.24%)311.0 V146.74 V (36.68%)6163.2 WDrop High
2.5 mm²24 A18 A53.37 V (13.34%)346.6 V88.04 V (22.01%)3697.9 WDrop High
4 mm²32 A25 A33.36 V (8.34%)366.6 V55.03 V (13.76%)2311.2 WDrop High
6 mm²41 A32 A22.24 V (5.56%)377.8 V36.68 V (9.17%)1540.8 WDrop High
10 mm²57 A44 A13.34 V (3.34%)386.7 V22.01 V (5.5%)924.5 W~ ≤5%
16 mm²76 A59 A8.34 V (2.08%)391.7 V13.76 V (3.44%)577.8 W✓ OK (≤3%)
25 mm²101 A78 A5.34 V (1.33%)394.7 V8.8 V (2.2%)369.8 W✓ OK (≤3%)
35 mm²125 A97 A3.81 V (0.95%)396.2 V6.29 V (1.57%)264.1 W✓ OK (≤3%)
50 mm²151 A118 A2.67 V (0.67%)397.3 V4.4 V (1.1%)184.9 W✓ OK (≤3%)
70 mm²192 A150 A1.91 V (0.48%)398.1 V3.14 V (0.79%)132.1 W✓ OK (≤3%)
95 mm²232 A181 A1.4 V (0.35%)398.6 V2.32 V (0.58%)97.3 W✓ OK (≤3%)
120 mm²269 A210 A1.11 V (0.28%)398.9 V1.83 V (0.46%)77.0 W✓ OK (≤3%)
150 mm²309 A241 A0.89 V (0.22%)399.1 V1.47 V (0.37%)61.6 W✓ OK (≤3%)
185 mm²353 A275 A0.72 V (0.18%)399.3 V1.19 V (0.3%)50.0 W✓ OK (≤3%)
240 mm²415 A324 A0.56 V (0.14%)399.4 V0.92 V (0.23%)38.5 W✓ OK (≤3%)
300 mm²477 A372 A0.44 V (0.11%)399.6 V0.73 V (0.18%)30.8 W✓ OK (≤3%)
400 mm²570 A445 A0.33 V (0.08%)399.7 V0.55 V (0.14%)23.1 W✓ OK (≤3%)

FAQ — Kabeltværsnit for 40 Ampere ved 90 Meter (400V)

Hvilket kabeltværsnit kræves til 40A ved 90 meter (400V)?

Til 40 Ampere over 90 meter ved 400V anbefales 16 mm² kobberkabel (spændingsfald 8.34V / 2.08%).

Hvor mange kW svarer 40A ved 400V til?

Det svarer til 27.71 kW med en anbefalet sikring på 40A.