⚡ 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

16 Amp Cable Size at 5 Meters (24V DC (Off-Grid Solar / Industrial Control))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 16 A over 5 m (16.4 ft).

Copper Cable (≤3% Drop)6 mm²Drop: 0.57V (2.38%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 0.56V (2.35%)
Voltage at Load23.4 VLine Loss: 9.1 W
Max Power & Breaker0.38 kW16A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 16A at 5m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A2.28 V (9.51%)21.7 V3.77 V (15.69%)36.5 WDrop High
2.5 mm²24 A18 A1.37 V (5.71%)22.6 V2.26 V (9.41%)21.9 WDrop High
4 mm²32 A25 A0.86 V (3.57%)23.1 V1.41 V (5.88%)13.7 W~ ≤5%
6 mm²41 A32 A0.57 V (2.38%)23.4 V0.94 V (3.92%)9.1 W✓ OK (≤3%)
10 mm²57 A44 A0.34 V (1.43%)23.7 V0.56 V (2.35%)5.5 W✓ OK (≤3%)
16 mm²76 A59 A0.21 V (0.89%)23.8 V0.35 V (1.47%)3.4 W✓ OK (≤3%)
25 mm²101 A78 A0.14 V (0.57%)23.9 V0.23 V (0.94%)2.2 W✓ OK (≤3%)
35 mm²125 A97 A0.1 V (0.41%)23.9 V0.16 V (0.67%)1.6 W✓ OK (≤3%)
50 mm²151 A118 A0.07 V (0.29%)23.9 V0.11 V (0.47%)1.1 W✓ OK (≤3%)
70 mm²192 A150 A0.05 V (0.2%)24.0 V0.08 V (0.34%)0.8 W✓ OK (≤3%)
95 mm²232 A181 A0.04 V (0.15%)24.0 V0.06 V (0.25%)0.6 W✓ OK (≤3%)
120 mm²269 A210 A0.03 V (0.12%)24.0 V0.05 V (0.2%)0.5 W✓ OK (≤3%)
150 mm²309 A241 A0.02 V (0.1%)24.0 V0.04 V (0.16%)0.4 W✓ OK (≤3%)
185 mm²353 A275 A0.02 V (0.08%)24.0 V0.03 V (0.13%)0.3 W✓ OK (≤3%)
240 mm²415 A324 A0.01 V (0.06%)24.0 V0.02 V (0.1%)0.2 W✓ OK (≤3%)
300 mm²477 A372 A0.01 V (0.05%)24.0 V0.02 V (0.08%)0.2 W✓ OK (≤3%)
400 mm²570 A445 A0.01 V (0.04%)24.0 V0.01 V (0.06%)0.1 W✓ OK (≤3%)

FAQ — 16 Amp Cable Size at 5 Meters (24V DC (Off-Grid Solar / Industrial Control))

What mm² cable size is required for 16A at 5 meters (24V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6 mm² copper cable for 16A over 5m at 24V (voltage drop: 0.57V or 2.38%).

What is the power capacity of 16A at 24V?

At unity power factor, 16A at 24V supports 0.38 kW with a standard 16A circuit breaker.