⚡ 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

150 Amp Cable Size at 35 Meters (24V DC (Off-Grid Solar / Industrial Control))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 150 A over 35 m (114.8 ft).

Copper Cable (≤3% Drop)400 mm²Drop: 0.56V (2.34%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.93V (3.86%)
Voltage at Load23.4 VLine Loss: 84.3 W
Max Power & Breaker3.6 kW150A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 150A at 35m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A149.8 V (624.17%)0.0 V247.1 V (1029.58%)22470.0 WDrop High
2.5 mm²24 A18 A89.88 V (374.5%)0.0 V148.26 V (617.75%)13482.0 WDrop High
4 mm²32 A25 A56.17 V (234.06%)0.0 V92.66 V (386.09%)8426.2 WDrop High
6 mm²41 A32 A37.45 V (156.04%)0.0 V61.77 V (257.4%)5617.5 WDrop High
10 mm²57 A44 A22.47 V (93.62%)1.5 V37.07 V (154.44%)3370.5 WDrop High
16 mm²76 A59 A14.04 V (58.52%)10.0 V23.17 V (96.52%)2106.6 WDrop High
25 mm²101 A78 A8.99 V (37.45%)15.0 V14.83 V (61.77%)1348.2 WDrop High
35 mm²125 A97 A6.42 V (26.75%)17.6 V10.59 V (44.12%)963.0 WDrop High
50 mm²151 A118 A4.49 V (18.73%)19.5 V7.41 V (30.89%)674.1 WDrop High
70 mm²192 A150 A3.21 V (13.38%)20.8 V5.29 V (22.06%)481.5 WDrop High
95 mm²232 A181 A2.37 V (9.86%)21.6 V3.9 V (16.26%)354.8 WDrop High
120 mm²269 A210 A1.87 V (7.8%)22.1 V3.09 V (12.87%)280.9 WDrop High
150 mm²309 A241 A1.5 V (6.24%)22.5 V2.47 V (10.3%)224.7 WDrop High
185 mm²353 A275 A1.21 V (5.06%)22.8 V2.0 V (8.35%)182.2 WDrop High
240 mm²415 A324 A0.94 V (3.9%)23.1 V1.54 V (6.43%)140.4 W~ ≤5%
300 mm²477 A372 A0.75 V (3.12%)23.3 V1.24 V (5.15%)112.3 W~ ≤5%
400 mm²570 A445 A0.56 V (2.34%)23.4 V0.93 V (3.86%)84.3 W✓ OK (≤3%)

FAQ — 150 Amp Cable Size at 35 Meters (24V DC (Off-Grid Solar / Industrial Control))

What mm² cable size is required for 150A at 35 meters (24V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 150A over 35m at 24V (voltage drop: 0.56V or 2.34%).

What is the power capacity of 150A at 24V?

At unity power factor, 150A at 24V supports 3.6 kW with a standard 150A circuit breaker.