⚡ 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

175 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 175 A over 10 m (32.8 ft).

Copper Cable (≤3% Drop)120 mm²Drop: 0.62V (2.6%)
Aluminum Cable (≤3% Drop)185 mm²Drop: 0.67V (2.78%)
Voltage at Load23.4 VLine Loss: 109.2 W
Max Power & Breaker4.2 kW175A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 175A at 10m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A49.93 V (208.06%)0.0 V82.37 V (343.19%)8738.3 WDrop High
2.5 mm²24 A18 A29.96 V (124.83%)0.0 V49.42 V (205.92%)5243.0 WDrop High
4 mm²32 A25 A18.72 V (78.02%)5.3 V30.89 V (128.7%)3276.9 WDrop High
6 mm²41 A32 A12.48 V (52.01%)11.5 V20.59 V (85.8%)2184.6 WDrop High
10 mm²57 A44 A7.49 V (31.21%)16.5 V12.35 V (51.48%)1310.8 WDrop High
16 mm²76 A59 A4.68 V (19.51%)19.3 V7.72 V (32.17%)819.2 WDrop High
25 mm²101 A78 A3.0 V (12.48%)21.0 V4.94 V (20.59%)524.3 WDrop High
35 mm²125 A97 A2.14 V (8.92%)21.9 V3.53 V (14.71%)374.5 WDrop High
50 mm²151 A118 A1.5 V (6.24%)22.5 V2.47 V (10.3%)262.1 WDrop High
70 mm²192 A150 A1.07 V (4.46%)22.9 V1.76 V (7.35%)187.2 W~ ≤5%
95 mm²232 A181 A0.79 V (3.29%)23.2 V1.3 V (5.42%)138.0 W~ ≤5%
120 mm²269 A210 A0.62 V (2.6%)23.4 V1.03 V (4.29%)109.2 W✓ OK (≤3%)
150 mm²309 A241 A0.5 V (2.08%)23.5 V0.82 V (3.43%)87.4 W✓ OK (≤3%)
185 mm²353 A275 A0.4 V (1.69%)23.6 V0.67 V (2.78%)70.9 W✓ OK (≤3%)
240 mm²415 A324 A0.31 V (1.3%)23.7 V0.51 V (2.14%)54.6 W✓ OK (≤3%)
300 mm²477 A372 A0.25 V (1.04%)23.8 V0.41 V (1.72%)43.7 W✓ OK (≤3%)
400 mm²570 A445 A0.19 V (0.78%)23.8 V0.31 V (1.29%)32.8 W✓ OK (≤3%)

FAQ — 175 Amp Cable Size at 10 Meters (24V DC (Off-Grid Solar / Industrial Control))

What mm² cable size is required for 175A at 10 meters (24V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 120 mm² copper cable for 175A over 10m at 24V (voltage drop: 0.62V or 2.6%).

What is the power capacity of 175A at 24V?

At unity power factor, 175A at 24V supports 4.2 kW with a standard 175A circuit breaker.