Load Characteristics
Check any motor-driven appliances you plan to use — this sizes the inverter's surge rating, not the continuous load.
Large systems 5kW+. Thinnest DIY-safe cables, lowest losses. Industry standard for residential off-grid.
Recommended Inverter
4 kW
Rated for 3572 VA continuous
1800W Peak Surge
Installation Specs
| DC Current (Max) | 75 A |
| Fuse / Breaker | 94 A |
| Wire Size (5m run) | 6.5mm (2 AWG) |
Model Recommendations
Click to select — feeds into system cost estimate
Cable Sizing & Voltage DropStandaloneImperialMetric
Standalone
ImperialMetric
Override
48V DC
m
1m5m (recommended inverter)1000m
Recommended: 2 AWG — cheapest cable ≤3% drop, ≤80% ampacity
✓ Selected6.5mm (2 AWG) — 33.2 mm² — rated 115A
ThinnestThickest
2 AWG
Carrying 75A @ 48V over 5m
0.39Vdrop (0.8%)
99.2%efficiency
Voltage at load: 47.6V of 48V