20a 12V 24V Auto Identification PWM Solar Panel Charge Controller Circuit with LED
Quick Detail:
20A PWM solar panel charge controller
1. LED display
2. PWM battery charging
3. All necessary protections equipped
4. Working mode of the load can be set
Specification:
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MODEL
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PWM2024Z
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MODEL
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PWM2024Z
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System voltage
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12V/24V
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Load loss
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<13mA
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Open circuit voltage
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<50V
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Voltage drop of charging circuit
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<0.2V
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Rated charging and discharging current no
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20A
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Voltage drop of discharging circuit
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<0.1V
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Elevated voltage
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14.4V/28.8V
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Humidity requirement |
≤90%
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Float charging voltage
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13.8V/27.6V
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Cable diameter
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<6mm2
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Low voltage disconnecting
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11.2V/22.4V
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Installing size
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Φ4mm—159mm*68mm
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Low voltage recovery
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12.6V/25.2V
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Dimension
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168mm*88mm*34mm
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Charging mode
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PWM
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Storage temperature
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-35°C — 70°C
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Output overload and short-circuit protection
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output >23A and 60s or
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Working temperature
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-25°C — 60°C
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>29A and 15s overload protection or
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>40A short-circuit
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1. Load LED indicator flickering: the output of the controller is overload or short-circuit. After removing the redundant load, the controller will eliminate the overload protection within two minutes.
2. Charging LED indicator off: No connecting of the solar panels. Please check whether the connect is right and firm.
3. Battery capacity LED indicator off: Please check whether the connection of the solar panels, battery and load is right.
LED Indication Instruction:
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Icon
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Indicator
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State
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Instruction
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Charging LED
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off
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not charging, no connecting of solar panels or weak sunshine
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on
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charging, or elevated charging
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flickering
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float charging, battery charged full
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Battery capacity LED
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green led on
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battery capacity full
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yellow led on
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battery capacity normal
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red led on
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battery capacity low
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red led flickering
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low voltage protection for battery
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Load LED
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on
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load on
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off
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load off
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flickering
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Load closed, output overload or short-circuit.
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Load Working Mode Instruction and Setting:
1. Normal mode: controller is used as PWM charging controller without lighting and timer function. Controller is at this mode without special request.
2. Lighting and timer controlling mode: At this mode, the controller will start the load after darkness and will close the load after setting hours (or sunrise).
3. Lighting control mode: At this mode, when the solar panels voltage is lower than 2.5V (for 24V system, 5V. for 48V system, 10V), controller will start the load after 10 seconds. When the solar panels voltage is higher then 3.5V (for 24V system, 7V. for 48V system, 14V), controller will close the load after 10 seconds.
Features:
1. Intuitionistic LED indicators show the current system battery capacity, charging and discharging state of the battery.
2. Having the protection functions as overcharging, over discharging, overload, short-circuit and reversed connection.
3. Tandem type PWM charging makes the charging efficiency increase by 3% to 6%, compared with non-PWM charging.
4. The parameters of charging and discharging have been set during the production(special parameters need to be told in advance), so no need to adjust the parameters.
5. It can set the working mode of the load.
6. USB charging function (optional).
7. Grid-complementary(optional function).
8. Remote telecommunications function equipped(optional function).
9. Prevent battery from discharging to battery at night.
FAQ:
1. Q: Do u have your own factory?
A: Yes, we have. Our factory located in Wenzhou city, Zhejiang province, China .
2. Q: How can I visit your factory?
A: Before you take off from your country, please let us know. We will arrange time to pick you up.
3. Q: Could u print our company LOGO on the nameplate and package.
A: Yes, we accept OEM orders.
4. Q: Do u have solar project engineer who can guide me to install system?
A: Yes, we have a professional engineers team. They can teach you how to install a solar system.
Applications:
- Solar portable light
- Solar Home systems
- Roof top solar solutions
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