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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

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

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