RICH SOLAR
1-800-831-9889 | www.richsolar.com | support@richsolar.com | 5550 Jurupa St, Ontario, CA 91761
Solar Controller / Battery Charger
MODEL: RS-PWM20WP
FEATURES AND ADVANTAGES
- PWM technology, switching control by MOSFET
- Common Positive Grounding connection
- High efficiency and low power consumption
- Battery type setting and battery condition indication
- Smart charging control
- Charging time management
- LED indication for the battery condition and charging statues
- Digital display charging parameters and battery settings
- Automatically active to Lithium battery against BMS protection
- Thermal protection
- Over voltage protection, Short circuit protection, Reverse polarity protection
- No sparks
- Waterproof
- Solid-duty cables
- Corrosion-resistant terminals and connectors
- Conformal coating supplied to the inside board against moisture
- Includes a port for external battery temperature sensor (BTS - optional)
- Suitable for most of the rechargeable Lead acid battery, including Flooded (WET), AGM, GEL, Calcium battery and Lithium batteries
- Designed according to CE standard, EMC, FCC compliance
MOUNTING THE DEVICE
The quickest and easiest way to mount the unit is to use the four plastic spacers and self-tapping screws supplied and mount the unit to a flat surface.
Diagram showing mounting dimensions: 33.0mm [1.299in] height, 3.7mm [0.146in] width for mounting holes. 68.0mm [2.677in] width between mounting holes. 105.5mm [4.154in] overall width. 115.3mm [4.539in] overall height. 132.6mm [5.221in] overall depth.
SPECIFICATION
ELECTRICAL PARAMETERS
| Parameter | Value |
|---|---|
| Rated Solar Panel Amps | Max. 20AMP |
| Normal Input Solar Cell Array Voltage | 15-22VDC |
| Max. Solar Cell Array Voltage (Output Has no Load) | 25VDC |
| The Controller Lowest Operating Voltage at Solar or Battery Side | 8VDC |
| Standby Current Consumption at Night | 5mA |
| Maximum Voltage Drop-Solar Panel to Battery | 0.25VDC |
CHARGING CHARACTERISTICS
| Parameter | Value |
|---|---|
| Minimum Battery Starts Charging Voltage | 3VDC |
| Soft Start Charging Voltage | 3-10±0.2VDC |
| Soft Start Charging Current (50% PWM Duty) | Up to 10AMP |
| Bulk Charge | By the maximum rated current |
| Absorption Charging Voltage at 25°C | |
| - Gel Type Battery | 14.1±0.2VDC |
| - AGM Type Battery (Default Setting) | 14.4±0.2VDC |
| - WET Type Battery | 14.7±0.2VDC |
| - Calcium Type Battery | 14.9±0.2VDC |
| - LTO Battery | 14.0±0.2VDC |
| - LFP Battery | 14.4±0.2VDC |
| Absorption Transits to Equalizing or Float Condition: | |
| - Charging Current Drops to | 1.5±0.1AMP |
| - or Absorption Charging Timer Timed out | 4 Hours |
| Equalization Charging Active (Only for WET or Calcium Battery) | |
| - Battery Voltage Discharged to Less Than | 10±0.2VDC |
| - Automatic Equalizing Charging Periodical | 28 Day |
| Equalization Charging Voltage at 25°C | 15.5±0.2VDC |
| Equalization Charging Timer Timed out | 2 Hours |
| Float Voltage (GEL, WET, Calcium, AGM battery) at 25°C | 13.6±0.2VDC |
| Restart Voltage for LTO Battery | 13.2±0.2VDC |
| Restart Voltage for LFP Battery | 13.4±0.2VDC |
| Voltage Control Accuracy | ±0.1% |
| Battery Temperature Compensation Coefficient | -24 mV/°C |
| Temperature Compensation Range | -20~+50 °C (-4°F to 122°F) |
| Over Temperature Protection During Charging | 65°C (149°F) |
PROTECTION
| Parameter | Value |
|---|---|
| Input Output Terminal | M5 terminals |
ELECTRICAL PARTS
| Parameter | Value |
|---|---|
| Controller Material | Plastic, Standard ABS |
| Power Terminal Maximum Stranded Wire Size | #10 AWG stranded- 5 mm² |
| Power Terminal Torque | Up to 17 in-lb (1.9 N·m) |
PHYSICAL PARAMETERS
| Parameter | Value |
|---|---|
| Mounting | Vertical wall mounting |
| IP Grade | IP65 |
| Net Weight | Approx. 300g/0.66lb |
ENVIRONMENTAL CHARACTERISTICS
| Parameter | Value |
|---|---|
| Operating Temperature | -25~50°C/-13~122 °F |
| Storage Temperature | -40~85°C/-40~185 °F |
| Operating Humidity Range | 100% no condensation |
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