PWM Regulator Steca Solarix PRS2020 12/24V 20A
Modelo: Solarix PRS2020- Sku: STECREG003
- Vendor: Steca
Specifications
Product Description
The PWM Steca Solarix PRS2020 12/24V 20A Controller is designed for off-grid solar installations that require higher charging current while maintaining the reliability and simplicity of the PRS range. It uses PWM technology in a series topology with MOSFETs and multi-stage charging control (bulk, boost, float, and monthly equalization), achieving stable and safe recharging that extends battery life. Its automatic 12/24 V detection, ultra-low self-consumption, and integrated electronic protections make this controller a robust solution for lighting, telecommunications, off-grid homes, and mobile applications.
Main Features
- Operating current: 20 A at 12/24 V with automatic system detection.
- Multi-stage PWM technology in series with MOSFETs and monthly equalization for battery maintenance.
- Comprehensive protections: overload, deep discharge, reverse polarity, short circuit, over/under voltage, overtemperature, reverse current at night, and electronic fuse.
- Interface with multicolor LEDs (SOC, operating status, and alarms) and automatic load reconnection.
- Very low self-consumption (<4 mA), wide thermal range, and IP31 for demanding environments.
- Functions expandable via Steca PA RC100 (remote control, night/dusk profile, and parameterization).
Advantages or Benefits
- Protects batteries with optimized, temperature-compensated charging voltages, reducing sulfation and maintenance.
- Allows for increased power compared to 10–15 A models without complicating the installation.
- Superior safety thanks to low voltage disconnection and integrated electronic protection.
- Clear system status reading with visible LEDs; “install and forget” operation.
- Flexibility for projects: night automation and threshold adjustment via accessory.
Purpose or Applications
Ideal for small and medium off-grid homes, cabins, signaling, surveillance cameras, caravans, boats, electric fences, and light pumping. This is the recommended 20 A PWM controller when seeking the best balance between cost, durability, and ease of use.
Technical Specifications
| System voltage | 12 V / 24 V (auto) |
| Charge current / output to load | 20 A / 20 A |
| Technology | Multi-stage PWM in series (MOSFETs) |
| Permissible PV Voc | <47 V |
| End of charge / boost / equalization | 13.9 V / 14.4 V / 14.7 V (×2 at 24 V) |
| Typical LVD / LVR | 11.2–11.6 V / 12.4–12.7 V (×2 at 24 V) |
| Self-consumption | <4 mA |
| Indicators | Multicolor LEDs (SOC, operation, alarms) |
| Protections | Overload, deep discharge, reverse polarity, short circuit, over/under voltage, overtemperature, reverse current at night |
| Ambient temperature | -25 °C to +50 °C |
| Degree of protection | IP31 |
| Terminals | Generous section for safe wiring |
| Dimensions / weight | 187×96×45 mm / approx. 345 g |
| Standards | CE marking, RoHS |
Compatibilities
Accessories: Steca PA RC100 for night functions and advanced settings. Important: inverters must be connected directly to the battery, not to the controller’s load output.
PWM Steca Solarix PRS2020 12/24V 20A Controller combines power, protection, and simplicity to maximize the performance of your photovoltaic system.
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PWM Regulator Steca Solarix PRS2020 12/24V 20A
