⚡ 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

1000 Amp Cable Size at 10 Meters (24V DC (Off-Grid Solar / Industrial Control))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 1000 A over 10 m (32.8 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.54V (2.23%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.76V (7.35%)
Voltage at Load23.5 VLine Loss: 535.0 W
Max Power & Breaker24.0 kW1000A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 1000A at 10m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A285.33 V (1188.89%)0.0 V470.67 V (1961.11%)285333.3 WDrop High
2.5 mm²24 A18 A171.2 V (713.33%)0.0 V282.4 V (1176.67%)171200.0 WDrop High
4 mm²32 A25 A107.0 V (445.83%)0.0 V176.5 V (735.42%)107000.0 WDrop High
6 mm²41 A32 A71.33 V (297.22%)0.0 V117.67 V (490.28%)71333.3 WDrop High
10 mm²57 A44 A42.8 V (178.33%)0.0 V70.6 V (294.17%)42800.0 WDrop High
16 mm²76 A59 A26.75 V (111.46%)0.0 V44.12 V (183.85%)26750.0 WDrop High
25 mm²101 A78 A17.12 V (71.33%)6.9 V28.24 V (117.67%)17120.0 WDrop High
35 mm²125 A97 A12.23 V (50.95%)11.8 V20.17 V (84.05%)12228.6 WDrop High
50 mm²151 A118 A8.56 V (35.67%)15.4 V14.12 V (58.83%)8560.0 WDrop High
70 mm²192 A150 A6.11 V (25.48%)17.9 V10.09 V (42.02%)6114.3 WDrop High
95 mm²232 A181 A4.51 V (18.77%)19.5 V7.43 V (30.96%)4505.3 WDrop High
120 mm²269 A210 A3.57 V (14.86%)20.4 V5.88 V (24.51%)3566.7 WDrop High
150 mm²309 A241 A2.85 V (11.89%)21.1 V4.71 V (19.61%)2853.3 WDrop High
185 mm²353 A275 A2.31 V (9.64%)21.7 V3.82 V (15.9%)2313.5 WDrop High
240 mm²415 A324 A1.78 V (7.43%)22.2 V2.94 V (12.26%)1783.3 WDrop High
300 mm²477 A372 A1.43 V (5.94%)22.6 V2.35 V (9.81%)1426.7 WDrop High
400 mm²570 A445 A1.07 V (4.46%)22.9 V1.76 V (7.35%)1070.0 WDrop High

FAQ — 1000 Amp Cable Size at 10 Meters (24V DC (Off-Grid Solar / Industrial Control))

What mm² cable size is required for 1000A at 10 meters (24V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 1000A over 10m at 24V (voltage drop: 0.54V or 2.23%).

What is the power capacity of 1000A at 24V?

At unity power factor, 1000A at 24V supports 24.0 kW with a standard 1000A circuit breaker.