The BlueSolar PWM-Pro 12/24-5 is a compact and reliable PWM solar charge controller designed for small off-grid solar systems. It supports both 12V and 24V battery systems with automatic voltage detection and delivers up to 5A charging current.
Using a proven three-stage charging algorithm (Bulk, Absorption, Float), the controller helps extend battery life while ensuring efficient energy management. Fully programmable via PC software or an optional remote panel, it offers flexible load control, built-in electronic protections, and dependable performance for lighting, monitoring, and small DC applications.
Key Features
- Automatic 12V / 24V battery voltage detection
- 5A PWM charge controller for small solar systems
- Fully programmable via PC software or optional Remote Panel
- Three-stage battery charging: Bulk, Absorption, Float
- Integrated load output with manual control and low-voltage disconnect
- Optional battery temperature sensor with temperature compensation
- Built-in protection against reverse polarity, short circuit, and over-temperature
- Low self-consumption for energy-efficient operation
- Common positive grounding
- Designed for indoor, non-condensing environments
Technical Specifications
| Parameter |
Specification |
| Model |
BlueSolar PWM-Pro 12/24-5 |
| Battery Voltage |
12 / 24 V (automatic detection) |
| Rated Charge Current |
5 A |
| Maximum Solar Voltage |
28 V (12V system) / 55 V (24V system) |
| Self-Consumption |
< 10 mA |
| Charge Algorithm |
3-stage: Bulk / Absorption / Float |
| Load Output |
Manual control with low voltage disconnect |
| Protection |
Battery reverse polarity, output short circuit, over-temperature |
| Battery Temperature Sensor |
Optional |
| Temperature Compensation |
-30 mV/°C (12V) / -60 mV/°C (24V) (with sensor) |
| Remote Panel |
Optional |
| Grounding |
Common positive |
| Operating Temperature Range |
-20 °C to +50 °C |
| Humidity |
Max. 98% (non-condensing) |
Default Charging Settings
| Setting |
12V System |
24V System |
| Absorption Voltage |
14.4 V |
28.8 V |
| Float Voltage |
13.8 V |
27.6 V |
| Equalization Voltage |
14.6 V |
29.2 V |
| Low Voltage Disconnect |
11.1 V |
22.2 V |
| Low Voltage Reconnect |
12.6 V |
25.2 V |
Mechanical & Compliance
| Item |
Specification |
| Terminal Size |
4 mm² |
| Protection Category |
IP30 |
| Weight |
0.13 kg |
| Dimensions (H × W × D) |
138 × 70 × 37 mm |
| Safety Standard |
IEC 62109-1 |
| EMC / Emissions |
EN 61000-6-1, EN 61000-6-3, ISO 7637-2 |
