2pcs/lot 40A Solar Charge Controller 12V 24V LCD Display SK40DU Light Timer Control Working Storage Function 

Package size:21.6*12.7*6.2cm

 

1. Vivid LCD indicators show system battery capacity, charging and discharging state of battery.                                                                                     

2. Protection functions such as overcharging, over discharging, overload and reverse connection.                                                                                        

3. PWM charging increases charging efficiency by 3% to 6%, compared with non-PWM charging.                                                                                              

4. You can adjust the parameters through buttons.                                                                              

5. Optional remote control function. 

 

 

Please make sure battery and solar panel are disconnected to controller, and do not contact the positive and negative terminals of solar panel and battery at the same time in case of electric shock.

A free space of 15cm on all sides must be provided for better heat dissipation. Current density control system wiring cables within the 3A / mm2.

• Make sure installation site meets safety requirements first.
• Make sure voltage of solar panel and battery are compatible with controller.
• Connect battery to controller and check whether the LCD display is on, if not, please solve the problem as mentioned in chapter 5.2.
• Connect solar panel to controller accordingly. If there’s sunlight, controller starts charging battery immediately and charging indicator arrow on LCD on.
• Connect load to controller

 

 

Model	SK30D	SK40D	SK3048D	SK4048D	SK3048DA	SK4048DA
Input
PV voltage	≤50V		≤100V		12V/24V ≤50V 36V/48V ≤100V
Rated current	30A	40A	30A	40A	30A	40A
Output
System voltage	12V/24V (Auto)		48V		12V/24V/36V/48V (Auto)
HVD	16.00V×1/×2/×3/×4
Rated current	30A	40A	30A	40A	30A	40A
No-load loss	≤13mA		≤15mA		≤25mA
Charge loop voltage drop	≤0.17V		≤0.28V		≤0.17V	≤0.28V
Discharge loop voltage drop	≤ 0.10V		≤ 0.10V		≤0.10V	≤0.10V

 

 

Discharge loop voltage drop	≤ 0.10V	≤ 0.10V	≤0.10V	≤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

 

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 Self-timing switch on/off mode
Light control voltage	5V(1V~10V) ×1/×2/×3/×4
Battery type	GEL, SLD, FLD and USr(default)
Other
Buttons	LCD, 3 buttons
Heat sink	AL alloy heat sink

 

Wiring	PCB terminal, ≤16mm2
Working temperature	-20 ~ +55 °C
Storage temperature	-30 ~ +80 °C
Working humidity	10% ~ 90%, no condensation
Dimension	196 x 111 x 54 mm
Net Weight	401 g	403 g	410 g	412g
IP grade	IP30
Optional function	Remote communication,TTL, standard ModBus protocol
Accessory	Temperature sensor

Battery Type

Battery type	Voltage of float charging (V)	Voltage of absorption charging(V)	Time of absorption charging(h)	Voltage of equalized charging(V)	Time of equalized charging(h)	Interval of equalized charging(day)
GEL	13.8	14.2	2	--.-	-	--
Sealed	13.8	14.4	2	14.6	2	28
Flooded	13.8	14.6	2	14.8	2	28
User	13.8	14.4	2	14.6	2	28

Manufacturer provides  1 year warranty from invoice date for solar charge controllers.
Please read the following instructions carefully. Free guarantee service will not be provided to the said equipment if

1.It has been installed and operated otherwise than in accordance with the instructions

2.Any unauthorized repair or modification has been carried out on the unit.

3.It has been damaged through natural calamities.

4.It has been damaged through transportation or storage.

5.Batch numbers, serial numbers or identification-marks are manipulated or are unidentifiable.

6.Load connected has been damaged due to incorrect, reversed connection as controller is equipped with solar panel and battery reverse connection protection, but no REVERSE LOAD CONNECTION PROTECTION.

7.It has been used to control power generated from any other type of device such as a Gasoline Generator rather than a solar panel to charge a lead acid battery.