Projecta 20A 4-Stage Automatic Solar Charge Controller – SC320
The Projecta SC320 is an advanced solar charge controller ideal for caravans and setups where solar panels produce up to 20A. It delivers a comprehensive 3-stage charging process to efficiently manage battery charging and protection for 12V or 24V battery systems.
Features:
- 3-Stage Automatic Charging: Efficiently manages bulk, absorption, and float stages
- Negative Load Switching: Protects connected devices and prevents reverse current
- Low Voltage Disconnect (LVD): Safeguards batteries from over-discharge
- LED Light Indication: Displays system status for solar input, battery charge, and load conditions
- User-Friendly: Simple installation and operation, perfect for caravans and remote setups
Specifications:
| SC320 | |
|---|---|
| Part No. | SC320 |
| Input | 12V or 24V solar panel |
| Max Input | 50V DC, 20A |
| Max Load | 20A |
| Load Switching | Negative |
| Battery | 12V or 24V |
| Charge Control | 3-stage charging |
| Bulk Voltage | 12V: 14.4V, 24V: 28.8V |
| Absorption Voltage | 12V: 13.8V, 24V: 27.6V |
| Float Voltage | 12V: 28.8V, 24V: 28.8V |
| LVD Disconnect | 12V: 11.1V, 24V: 22.2V |
| LVD Reconnect | 12V: 12.6V, 24V: 25.2V |
| Standby Current | 6mA |
| Approvals | EMC |
| LED Light Indications |
Solar: Green normal, Green slow flash over voltage Battery: Green slow flash full (float/absorption), Green normal, Yellow on low, Red on flat-disconnected Load: Red on normal, Red slow flash overload, Red fast flash short circuit |


