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price PWM solar charge controller 20amp
This series is a new series of intelligent multi-purpose solar charge controllers. Its innovative design makes it easy to install and quite user-friendly. Optimized charging and discharging management extends the service life of batteries considerably. Meanwhile, parameters are explicitly displayed. Most parameter values can be set to meet various applications.
Ⅰ:Dimension and Circuit Layout
Ⅱ : product details
Ⅲ Function
(1)Four-stage PWM charging mode.
(2)Preset charging parameters for three battery types.
(3)Detecting mode for battery voltage level is adjustable.
(4)Charging and discharging parameters are adjustable.
(5)Temperature compensation is applied.
(6)Various controlling mode for load.
(7)Optional communication function.
(8)Protection against reverse connected solar panel and input over-current.
(9)Protection against under-voltage, over-voltage, reverses connection and reverse discharge of battery.
(10)Protection against over-current of load.
(11)Protection against internal over-heat.
Technical data
| Model | 20DU | 30DU | 2048D | 3048D | |
| Input | |||||
| PV voltage | ≤50V | ≤50V | ≤100V | ≤100V | |
| Rated Current | 10A | 20A | 30A | 20A | 30A |
| Output | |||||
| System Voltage | 12V/24V Auto | 12V/24V Auto | 48V | 48V | |
| HVD | 16.00V×1/×2/×3/×4(0.5V) | ||||
| Rated discharging current | 10A | 20A | 30A | 20A | 30A |
| No-load loss | ≤13mA | ≤25mA | |||
| Charge loop voltage drop | ≤0.21V | ≤0.24V | ≤0.25V | ≤0.25V | |
| Discharge loop voltage drop | ≤ 0.12V | ≤ 0.1V | ≤0.12V | ≤0.10V | |
| Charging mode | PWM 4-stage(bulk, absorption,float, equalized) | ||||
| Voltage of float charging | 13.8(13V~15V)×1/×2/×3/×4 | ||||
| Voltage of absorption charging | 14.4V(13V~15V) ×1/×2/×3/×4 | ||||
| Duration of absorption charging | 2hs | ||||
| Voltage of equalized charging * | 14.6V(13V~15.5V) ×1/×2/×3/×4 | ||||
| Duration of equalized charging | 2hs | ||||
| LVD | 10.7V(10V~14V) ×1/×2/×3/×4 | ||||
| LVR | 12.6V(10V~14V) ×1/×2/×3/×4 | ||||
| Load working mode | Regular control mode | ||||
| Light control with switch-off point at night and switch-on point before dawn | |||||
| Light control mode | |||||
| Light control voltage | 5V(1V~10V) ×1/×2/×3/×4 | ||||
| Battery type | GEL, SLD, FLD and USr(default) | ||||
| USB | 5V 1A | None | |||
| Other | |||||
| Man-machine interface | LCD, 2 buttons | ||||
| Wiring | PCB terminal, ≤6mm2 | PCB terminal, ≤16mm2 | PCB terminal, ≤6mm2 | PCB terminal, ≤16mm2 | |
| Working temperature | -20 ~ +55 °C | ||||
| Storage temperature | -30 ~ +80 °C | ||||
| Working humidity | 10% ~ 90%, no condensation | ||||
| Dimension | 188 x 95 x 46.5mm | ||||
| Net Weight | 355g | 360g | 355g | 360g | |
| IP Code | IP30 | ||||
| Optional function | Remote communication,TTL, standard ModBus protocol | ||||
1 A:Absolutely.You are always welcomed to visit our factory.
2 Q:How do you control the quality of the products?
2 A:Our factory has obtained ISO9001 certificate. Every process of the production is strictly controlled. And all the products will be inspected by QC before shipment.
3 Q:What certificate do you have?
3 A:We have CE,ROHS.
4 Q:What kind of payment do you accept?
4 A:We accept T/T, Paypal, Escrow, Western Union for samples’ order.
5 Q:How long the delivery time?
5 A:2-7 days for ex-stock orders.15-30 days for production.
6 Q:What kind of controller you mainly manufacturer?
6 A:We mainly produce PWM solar charge controller, MPPT solar charge controller.
7 Q:Can we print our company logo on product and package?
7 A:Yes,but quantity of order is required. And we also need you to offer the Trademark authorization to us.
8 Q:How long is the warranty period?
8 A:1 year warranty. If you order our brand products, there will be 2 years warranty.
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