Serie
Models
Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 090409 1
Product Description Ordering Key
• 12VDC, 24VDC, 48VDC system voltage
• 10A, 20A and 30A battery current ratings
• 8 automatic charging programs (bulk, float, equal)
• Charge LED status
• Load LED status
• Light / Load control
• Lighting set-up mode
• Battery Temperature Sensor (BTS)
• Manual / Auto Equalization
Type Selection
SBCLC 10A
SunBright
Solar Battery Charger
with Load Control
Electrical Data
SunBright is a solar battery
charger and a load/light control
device with an advanced design
using a microcontroller for
digital accuracy and fully
automatic operation. Each model
unit can be used for 12V, 24V and
48V system and can be operated
at three major functions including
solar charging, load control and
lighting control.
The PWM battery charging has
been optimized for longer
battery life and the state-of-
the-art auto detector of day
and night has been precisely
applied to log the different
length of night hours for lighting
control no matter where and
when (the North or the South,
winter or summer) SunBright is
installed.
Approvals
SBCLC 10A
Serie
SBCLC Solar Battery Charger and
Load/Light Control
Models
10A
10A Current rating battery charge
20A
20A Current rating battery charge
30A
30A Current rating battery charge
Model SBCLC 10A SBCLC 20A SBCLC 30A
System voltage ratings 12, 24, 48VDC
Current ratings -
Battery Charge Control 10A 20A 30A
Current ratings -
Load Control/Lighting Control 10A 20A 30A
Accuracy 12/24V: 0.1% ± 50mV - 48V: 0.1% ± 100mV
Min. / Max operating voltage 9V / 68V
Max. solar array Voc 140V
Current consumption -25mA, (idle -3mA)
High temp shutdown
90ºC disconnect solar
90ºC disconnect load / diversion load
70ºC reconnect solar / load / diversion load
LVD
(Low Voltage Disconnection)
11.1V (default), 10.5V, 11.3V, 11.5V, 11.7V, 11.9V, 12.1V, 12.3V for 12V system
22.2V (default), 20.1V, 22.6V, 23.0V, 23.4V, 23.8V, 24.2V, 24.6V for 24V system
44.4V (default), 42.0V, 45.2V, 46.0V, 46.8V, 47.6V, 48.4V, 49.2V for 48V system
LVR
(Low Voltage Reconnection)
12.6V (default), 12.0, 12.8V, 13.0V, 13.2V, 13.4V, 13.6V, 13.8V for 12V system
25.2V (default), 24.0, 25.6V, 26.0V, 26.4V, 26.8V, 27.2V, 27.6V for 24V system
50.4V (default), 48.0, 51.2V, 52.0V, 52.8V, 53.6V, 54.4V, 55.2V for 48V system
Overload Capacity 150% of rated current for transient surge
Battery Charging/Built-in BTS Data
Model SBCLC 10A SBCLC 20A SBCLC 30A
Charge algorithm PWM (Pulse Width Modulation), constant voltage
Temp comp. coefficient -5mV/ºC / cell (25ºC ref)
Temp comp. range 0ºC to +50ºC
Temp comp. setpoints PWM, float, equalize (with BTS)
2Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 090409
SunBright
Solar Battery Charger
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Wiring Diagram
Mechanical Data
Model SBCLC 10A SBCLC 20A SBCLC 30A
Weight 0.3kg 0.4kg
Enclosure Indoor & natural air convection, (powder coated steel)
Optional remote panel Not available Optional LCD display
Environmental Data
Model SBCLC 10A SBCLC 20A SBCLC 30A
Ambient temperature -40 to +45ºC
Storage temperature -55 to +85ºC
Humidity 100% (Non Condensing)
General Overview
Dip
Switches
Charge
status LED
Load
status LED
Lighting
Set-up
PV+
PV-
Manual
EQU/LVR
Light
test
Battery
Pos.+
Load+
Light+
Load-
Light-
Battery
Neg.-
BVS
+ -
BTS
Remote
Panel
1st 3rd
2nd
1st Connect the Battery
2nd Connect the Photovoltaic panel (PV array)
3rd Connect the load/light
Note:
• The device prevents reverse current leakage at night, so a
blocking diode is not required in the system.
• The terminals will accept a maximum wire size of AWG#10
(up to 5.2mm2). (Some #10 spade connectors may not fit in
this terminal.)
• Tighten each terminal screw maximum to 20x0.1130Nm
(20inch-pounds) of torque.
• It is designed to regulate power from a PV array. However
other generators can be connected directly to the battery,
with no effect on this device.
• A battery below 10V may not start the microcontroller
properly. Make sure the battery is charged before installing
the system.
Minimum Clearance
Install the device vertically and leave at least 5cm all around
in order to improve cooling.
5cm/1.97” 5cm/1.97”
5cm/1.97”
5cm/1.97”
Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 090409 3
SunBright
Solar Battery Charger
DIP Switch
12
ON
34567
Battery Voltage
1 2
OFF OFF 48V system
ON OFF 24V system
OFF ON 12V system
1234567
ON
Battery Charging Programs
Battery Bulk Float Equalize Equalize
time
Equalize
Interval
3 4 5 Type Voltage Voltage Voltage (Hours) (Days)
OFF OFF OFF 1 – Sealed 14.0 13.4 None - -
OFF OFF ON 2 – Sealed 14.1 13.4 14.2 128
OFF ON OFF 3 – Sealed 14.3 13.4 14.4 228
OFF ON ON 4 – Flooded 14.4 13.4 15.1 328
ON OFF OFF 5 – Flooded 14.6 13.4 15.3 328
ON OFF ON 6 – Flooded 14.8 13.4 15.3 328
ON ON OFF 7 – L - 16 15.0 13.4 15.3 314
ON ON ON 8 – NiCad 16.0 14.5 None - -
1234567
ON
Equalization
6
OFF Manual Equalization
ON Auto Equalization
1234567
ON
Load / Light control
7
OFF Load Control
ON Lighting Control
6535
168
161
Dimensions (mm)
65
35
236
229
SBCLC 10A - SBCLC 20A SBCLC 30A
4Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 090409
SunBright
Solar Battery Charger
LED status
Charge Status LED
Blinking Green: Charging is in the state of Bulk or Absorption.
Fixed Green: Charging is in the state of Float.
Fixed Orange: Charging in the state of Equalization.
Fixed Red: Charging in the state of fault: Over Current.
Blinking Red: Charging in the state of fault: Over Temp.
Load Status LED
Blinking Green: If the battery charge state falls below the disconnect setpoint voltage (Initial
setting: 11.1V for 12V system, 22.2V for 24V system and 44.4V for 48V system) lasting for six
minutes, the green LED will blink to be ready for load disconnection.
Fixed Orange: After six minutes of battery voltage under setpoint, the orange LED will lit to
show the low voltage disconnection for loads.
Blinking Orange: When the battery voltage goes over to above the reconnect setpoint value
(Initial setting: 12.6V for 12V system, 25.2V for 24V system and 50.4V for 48V system), the
orange LED will blink to be ready for reconnection for six minutes.
Fixed Green: Battery discharges to DC load after six minutes of reconnection process, the
green LED will be lit to show battery successfully discharges to DC load.
Fixed Red: Load control in fault: Load Over Current.
Blinking Red: Load control in fault: Over Temperature.
LIGHT TEST Button
Press the LIGHT TEST button to enter the testing
mode to check if the Lighting Control Switch has
been correctly set in order to control the lights
based on desired timer.
It counts 24 hours a day as 24 seconds so 1 hour is equal to 1
second and 12 seconds for day time and 12 seconds for night time.
LIGHT
TEST
PUSH MANUAL EQU/LVR
When a fault occurs, push Manual Equalize/LVR
to reset it.
HOLD MANUAL EQU/LVR
Battery charge control mode: Hold Manual Equalize/LVR to
start equalization and press it again to stop equalization.
MANUAL
EQU/LVR
Manual EQUalization/
Load Voltage Reconnect
CHARGE LED
LOAD LED
LVR LVD
Load Voltage
Reconnect
Load Voltage
Disconnect
12V 24V 48V 12V 24V 48V
12.6 25.2 50.4 11.1 22.2 44.4
12.8 25.6 51.2 11.3 22.6 45.2
13.0 26.0 52.0 11.5 23.0 46.0
13.2 26.4 52.8 11.7 23.4 46.8
13.4 26.8 53.6 11.9 23.8 47.6
13.6 27.2 54.4 12.1 24.2 48.4
13.8 27.6 55.2 12.3 24.6 49.2
12.0 24.0 48.0 10.5 21.0 42.0
Load Control Set-Up
DIP Switch 7 should be set in OFF
Procedure to select LVD/LVR:
Step 1 Press MANUAL EQU/LVR
push button and LIGHT
TEST push button at the
same time until the
CHARGE LED turns red and
LOAD LED turns green in turns.
Step 2: Press LIGHT TEST push
button at one time and
observe the CHARGE LED
colour and LOAD LED
colour changing in the
following order to select the
LVD and LVR level.
Step 3: Press MANUAL EQU/LVR to
finish the LVD/LVR level
setting procedure.
Connecting terminal for Battery Voltage Sensor to
compensate voltage loss due to cable resistance.
Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 090409 5
Lighting set-up Diagram
When setting in the lighting set-up mode, DIP Switch 7 should be placed at ON. After completing the system connections,
select the desired LIGHTING SET-UP option.
Lighting Set-Up Selector
OFF Lights remain turned OFF.
OFF
SUNSET NIGHT SUNRISE
2, 4, 6, 8, 10 Hours light is turned on after
sunset.
SUNSET NIGHT SUNRISE
2h ON
4h ON
6h ON
8h ON
10h ON
2/1, 3/1. 4/1,
6/1, 2/2, 3/2,
4/2, 6/2, 8/2
Light is turned on after sunset,
turned off after the selected
lasting hours, and turned on
again before sunrise.
2/1: Light is turned on for 2
hours after sunset, turned off
after 2hours and turned on
again 1hour before sunrise.
SUNSET NIGHT SUNRISE
2h / OFF / 1h
3h / OFF / 1h
4h / OFF / 1h
6h / OFF / 1h
2h / OFF / 2h
3h / OFF / 2h
4h / OFF / 2h
6h / OFF / 2h
8h / OFF / 2h
D/D
Dusk-to-Dawn, light is on all night.
SUNSET NIGHT SUNRISE
Dusk-to-Dawn
OFF
4
2
8
10
6
3/1
2/1
6/1 4/1
3/2
2/2
6/2
4/2
8/2
D/D
L
I
G
H
T
I
N
G
S
E
T
-
U
P
Battery Voltage Sensor (BVS)
BVS
+
-
Battery Temperature Sensor (BTS)
A sensor next to the remote panel is used for
temperature compensated battery charging.
As the battery gets warmer, the gassing increases. As
the battery gets colder, it becomes more resistant to
charging. Depending on how much the battery
temperature varies, it may be important to adjust the
charging for temperature changes.
BTS
6Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 090409
Features
Solar Overload Enhanced radiation or
“edge of cloud effect”
conditions can generate
more current than the
controller’s rating. The
device will reduce this
overload up to 130% of
rated current by regulating
the current to safe level. If
the current from the solar
array exceeds 150%, the
controller will stop charging.
Battery Temperature
All charging setpoints are based
Compensation
on 25°C (77°F). If the battery
temperature varies by 5°C, the
charging will change by 0.15
volts for a 12 volt battery. This is
a substantial change in the
charger of the battery.
Auto Detector for Day and Night It uses the solar array to detect
day and night. Both state
changes require 10 minutes of
continuous transition values
before making the change.
These constraints avoid false
transitions due to lightning or
dark storm clouds.
Measure Night Length
The LIGHTING SET-UP options
that turn the lights on again
before sunrise require that the
device measure the length of
the night. Therefore, the
controller cannot turn the lights
on before sunrise the first night
after installation (or after
reconnecting the battery). If the
solar array is disconnected
during service, the controller
will then measure a faulty night
length. Either reset the
controller by reconnecting the
battery, or this short “night” will
be automatically corrected by
the controller after 4 days of
service.
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