320W Monocrystalline Solar Panel PV Module for Home & Commercial Rooftop
320W Monocrystalline Solar Panel PV Module for Home & Commercial Rooftop
Pushing toward 48 V territory at 46.08 V open-circuit, this module suits systems that want to keep current low — worthwhile on larger arrays, where every amp saved is cable and losses saved across a long roof run.
Where it fits best
- Larger 24 V or entry-level 48 V off-grid systems
- Arrays with long cable runs from roof to plant room
- Reducing balance-of-system cost per kilowatt on bigger installs
Technical specifications
| Maximum Power (Pmax) | 320 W |
|---|---|
| Open Circuit Voltage (Voc) | 46.08 V |
| Short Circuit Current (Isc) | 8.83 A |
| Voltage at Pmax (Vmp) | 38.4 V |
| Current at Pmax (Imp) | 8.33 A |
| Module Efficiency | 20.54 % |
| Power Tolerance | 0, +4.99W |
| Maximum System Voltage | 700 V DC |
| Max Series Fuse Rating | 20 A |
| Module Type | 210M320 |
| Solar Cells | Mono crystalline 210*105mm (4*16Pcs) |
| External Dimensions | 1770*880*30mm |
| Weight | 19.1 kg |
| Front Glass | 3.2 mm tempered glass |
| Frame | Aluminum |
| Junction Box | IP67 |
| Output Cables | 100CM 4mm² Cable |
| Connector | MC4 Compatible |
| Mechanical Load | Front Side Max. 5400Pa, Rear Side Max. 2400Pa |
| Pmax Temperature Coefficient | -0.350%/°C |
| Voc Temperature Coefficient | -0.270%/°C |
| Isc Temperature Coefficient | +0.048%/°C |
| Package Dimensions | 1785*70*895mm |
| Package Weight | 40 kg |
| Pieces per Package | 2 |
Questions buyers ask
Is 19.1 kg unusual for this size?
It is on the heavier side for 320 W, which matters for roof loading calculations and for planning a two-person lift with the right handling equipment.
Can it charge a 48 V battery bank directly?
Only through an MPPT controller with a suitable input range and the correct charging profile. Never connect a panel directly to a battery bank.
Explore more from IPV ESSA
- Shop all Solar Panels
- 340W Monocrystalline Solar Panel PV Module (1860×880×30mm)
- 360W Monocrystalline Solar Panel PV Module (1980×880×30mm)
Frequently Asked Questions
What is a monocrystalline solar panel?
A panel built from single-crystal silicon cells, giving higher efficiency and a smaller footprint than polycrystalline types.
Do panels work on cloudy days?
Yes, at reduced output — typically 10–50% of clear-sky levels depending on how thick the cloud cover is.
How long do solar panels last?
Quality modules commonly retain most of their output for 20–25 years thanks to tempered glass and aluminium frames.
Can I connect panels to a battery?
Panels feed an MPPT charge controller or hybrid inverter, which safely charges the connected battery bank.
