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Description
SLD Tech 20A PWM Charge Controller 12V/24V Auto-Switch - STR-NR2420DThe SLD Tech STR NR2420D is a 20A PWM (Pulse Width Modulation) charge controller with 12V 24V auto switch capabilities, making a great choice for your next solar installation. This essential component protects your battery from overcharging while simultaneously optimizing the efficiency of your solar panel system. With its advanced microcontroller technology, this charge controller accurately monitors and controls the charging process, ensuring your
The SLD Tech STR-NR2420D is a 20A PWM (Pulse Width Modulation) charge controller with 12V/24V auto-switch capabilities, making a great choice for your next solar installation. This essential component protects your battery from overcharging while simultaneously optimizing the efficiency of your solar panel system. With its advanced microcontroller technology, this charge controller accurately monitors and controls the charging process, ensuring your battery is always charged to the optimal level. Its durable construction can withstand harsh environmental conditions, making it a reliable solution for off-grid and remote solar panel systems.
Key Features & Benefits
20A PWM Charging Technology: Provides reliable, efficient battery charging for medium-sized solar systems, extending battery life through precise pulse-width modulation control.
12V/24V Auto-Switch System Voltage: Automatically detects and adjusts to 12V or 24V battery banks, simplifying installation and offering flexibility for different system configurations.
Temperature Compensation Function: Automatically adjusts charging voltage based on battery temperature, extending battery life and improving charging safety in varying climate conditions.
Multiple Protection Features: Safeguards your system against overcharging, overloading (>1.2x rated current), low voltage, and reverse polarity for reliable, worry-free operation.
Compact and Easy to Install Design: Small footprint (140 x 85 x 42.5 mm) and lightweight (227g) design makes installation quick and simple, even in tight spaces.
Built-in USB Output: Features a 5V/1A USB port for convenient charging of small electronics, phones, or USB-powered devices directly from your solar system.
Advanced Microcontroller Technology: Accurately monitors and controls the charging process with low no-load loss (12.5mA at 12V, 14.5mA at 24V) for minimal self-consumption.
2-Year Warranty: Backed by a 2-year warranty for peace of mind.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | STR-NR2420D |
| Rated Current | 20A |
| System Voltage | 12V/24V (Auto Detect) |
| Charging Mode | PWM |
| No Load Loss | 12.5mA (12V) / 14.5mA (24V) |
| Absorption Charging Voltage | 14.4V (12V) / 28.8V (24V) (2 hour duration) |
| Float Charging Voltage | 13.8V (12V) / 27.6V (24V) |
| Low Voltage Protection | 10.8V (12V) / 21.6V (24V) |
| Low Voltage Reconnecting | 12.6V (12V) / 25.2V (24V) |
| Overloading Protection | >1.2 × rated current |
| Charging Circuit Voltage Drop | <0.22V |
| Discharging Circuit Voltage Drop | <0.12V |
| USB Output | 5V / 1A |
| Installing Cables Size | ≤ 6mm² |
| Operating Temperature | -10°C to +50°C |
| Dimensions | 140 × 85 × 42.5 mm (5.5" × 3.3" × 1.7") |
| Weight | 227g (0.5 lbs) |
| Warranty | 2 Years |
Product Documents
-
Spec Sheet: Download Spec Sheet
-
Installation Manual: Download Installation Manual
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy