⚡ 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

35 Amp Cable Size at 10 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 35 A over 10 m (32.8 ft).

Copper Cable (≤3% Drop)16 mm²Drop: 0.94V (1.95%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 0.99V (2.06%)
Voltage at Load47.1 VLine Loss: 32.8 W
Max Power & Breaker1.68 kW35A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A at 10m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A9.99 V (20.81%)38.0 V16.47 V (34.32%)349.5 WDrop High
2.5 mm²24 A18 A5.99 V (12.48%)42.0 V9.88 V (20.59%)209.7 WDrop High
4 mm²32 A25 A3.75 V (7.8%)44.3 V6.18 V (12.87%)131.1 WDrop High
6 mm²41 A32 A2.5 V (5.2%)45.5 V4.12 V (8.58%)87.4 WDrop High
10 mm²57 A44 A1.5 V (3.12%)46.5 V2.47 V (5.15%)52.4 W~ ≤5%
16 mm²76 A59 A0.94 V (1.95%)47.1 V1.54 V (3.22%)32.8 W✓ OK (≤3%)
25 mm²101 A78 A0.6 V (1.25%)47.4 V0.99 V (2.06%)21.0 W✓ OK (≤3%)
35 mm²125 A97 A0.43 V (0.89%)47.6 V0.71 V (1.47%)15.0 W✓ OK (≤3%)
50 mm²151 A118 A0.3 V (0.62%)47.7 V0.49 V (1.03%)10.5 W✓ OK (≤3%)
70 mm²192 A150 A0.21 V (0.45%)47.8 V0.35 V (0.74%)7.5 W✓ OK (≤3%)
95 mm²232 A181 A0.16 V (0.33%)47.8 V0.26 V (0.54%)5.5 W✓ OK (≤3%)
120 mm²269 A210 A0.12 V (0.26%)47.9 V0.21 V (0.43%)4.4 W✓ OK (≤3%)
150 mm²309 A241 A0.1 V (0.21%)47.9 V0.16 V (0.34%)3.5 W✓ OK (≤3%)
185 mm²353 A275 A0.08 V (0.17%)47.9 V0.13 V (0.28%)2.8 W✓ OK (≤3%)
240 mm²415 A324 A0.06 V (0.13%)47.9 V0.1 V (0.21%)2.2 W✓ OK (≤3%)
300 mm²477 A372 A0.05 V (0.1%)48.0 V0.08 V (0.17%)1.7 W✓ OK (≤3%)
400 mm²570 A445 A0.04 V (0.08%)48.0 V0.06 V (0.13%)1.3 W✓ OK (≤3%)

FAQ — 35 Amp Cable Size at 10 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

What mm² cable size is required for 35A at 10 meters (48V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 35A over 10m at 48V (voltage drop: 0.94V or 1.95%).

What is the power capacity of 35A at 48V?

At unity power factor, 35A at 48V supports 1.68 kW with a standard 35A circuit breaker.