⚡ 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 800 Ampere ved 250 Meter (400V)

Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 800 A over 250 m ved 400V.

Copper Cable (≤3% Drop)2× 400 mm²Drop: 9.27V (2.31%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 30.57V (7.64%)
Voltage at Load390.7 VLine Loss: 12840.0 W
Max Power & Breaker554.26 kW800A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A at 250m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A4942.12 V (1235.53%)0.0 V8152.19 V (2038.05%)6848000.0 WDrop High
2.5 mm²24 A18 A2965.27 V (741.32%)0.0 V4891.31 V (1222.83%)4108800.0 WDrop High
4 mm²32 A25 A1853.29 V (463.32%)0.0 V3057.07 V (764.27%)2568000.0 WDrop High
6 mm²41 A32 A1235.53 V (308.88%)0.0 V2038.05 V (509.51%)1712000.0 WDrop High
10 mm²57 A44 A741.32 V (185.33%)0.0 V1222.83 V (305.71%)1027200.0 WDrop High
16 mm²76 A59 A463.32 V (115.83%)0.0 V764.27 V (191.07%)642000.0 WDrop High
25 mm²101 A78 A296.53 V (74.13%)103.5 V489.13 V (122.28%)410880.0 WDrop High
35 mm²125 A97 A211.81 V (52.95%)188.2 V349.38 V (87.34%)293485.7 WDrop High
50 mm²151 A118 A148.26 V (37.07%)251.7 V244.57 V (61.14%)205440.0 WDrop High
70 mm²192 A150 A105.9 V (26.48%)294.1 V174.69 V (43.67%)146742.9 WDrop High
95 mm²232 A181 A78.03 V (19.51%)322.0 V128.72 V (32.18%)108126.3 WDrop High
120 mm²269 A210 A61.78 V (15.44%)338.2 V101.9 V (25.48%)85600.0 WDrop High
150 mm²309 A241 A49.42 V (12.36%)350.6 V81.52 V (20.38%)68480.0 WDrop High
185 mm²353 A275 A40.07 V (10.02%)359.9 V66.1 V (16.52%)55524.3 WDrop High
240 mm²415 A324 A30.89 V (7.72%)369.1 V50.95 V (12.74%)42800.0 WDrop High
300 mm²477 A372 A24.71 V (6.18%)375.3 V40.76 V (10.19%)34240.0 WDrop High
400 mm²570 A445 A18.53 V (4.63%)381.5 V30.57 V (7.64%)25680.0 WDrop High

FAQ — Kabeltværsnit for 800 Ampere ved 250 Meter (400V)

Hvilket kabeltværsnit kræves til 800A ved 250 meter (400V)?

Til 800 Ampere over 250 meter ved 400V anbefales 2× 400 mm² kobberkabel (spændingsfald 9.27V / 2.31%).

Hvor mange kW svarer 800A ved 400V til?

Det svarer til 554.26 kW med en anbefalet sikring på 800A.