SamplexPower SCC-1208L User manual

8 Amp Solar
Charge
Controller
SCC-1208L
Please read this
manual BEFORE
operating your
solar charge
controller
Owner's
Manual

2 | SAMLEX AMERICA INC.
OWNER'S MANUAL SCC-1208L | Index
SECTION 1
Safety Instructions ................................................................ 3
SECTION 2
Features of the SCC-1208L ...................................................7
SECTION 3
Installation & Operation .........................................................9
SECTION 3-1
Supplementary Information ................................................ 11
SECTION 4
Specications ......................................................................14
SECTION 5
Warranty ..........................................................................15
DETAILED PRODUCT INFORMATION
For a complete user manual including specications,
application notes, installation instructions, trouble
shooting and more, please visit the web page for this
product on www.samlexamerica.com. Product page can
be found using the “Search by Model” eld.

2 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 3
SECTION 1 | Safety Instructions
Please read these instructions before
installing or operating the Charge
Controller to prevent personal injury
or damage to the Charge Controller.
GENERAL
Installation and wiring compliance
• Installationandwiringmustcomply
with the local and National Electrical
Codes and must be done by a certied
electrician.
Preventing electrical shock
• TheNegativesystemconductorshould
be properly grounded. Grounding
should comply with local codes.
• Disconnectallinputandoutputside
connections before working on any
circuits associated with the Charge
Controller.
Installation environment
• Thecontrollerissplashproofandcan
bemountedoutdoorsinavertical
position.Donotexposetoambient
temperature > 60° C.
Preventing re and explosion hazards
• WorkingwiththeChargeController
mayproducearcsorsparks.Thus,the
Charge Controller should not be used
in areas where there are inammable
materials or gases requiring ignition
protectedequipment.Theseareasmay
include spaces containing gasoline
poweredmachinery,fueltanks,
battery compartments.
Precautions when working with batteries
• Batteriescontainverycorrosivediluted
Sulphuric Acid as electrolyte. Precau-
tionsshouldbetakentoprevent
contactwithskin,eyesorclothing.
• BatteriesgenerateHydrogenand
Oxygenduringchargingresultingin
evolutionofexplosivegasmixture.
Careshouldbetakentoventilatethe
battery area and follow the battery
manufacturer’s recommendations.
• Neversmokeorallowasparkorame
near the batteries.
• Usecautiontoreducetheriskofdrop-
pingametaltoolonthebattery.It
could spark or short circuit the battery
or other electrical parts and could
causeanexplosion.
• Removemetalitemslikerings,brace-
lets and watches when working with
batteries.Thebatteriescanproduce
a short circuit current high enough to
weld a ring or the like to metal and
thuscauseasevereburn.
• Ifyouneedtoremoveabattery,
alwaysremovethegroundterminal
from the battery rst. Make sure that
all the accessories are off so that you
do not cause a spark.
CHARGE CONTROLLER RELATED
• Itistobeensuredthattheinput
voltagefedtotheChargeController
doesnotexceed26VDCtoprevent
permanent damage to the Charge
Controller.

4 | SAMLEX AMERICA INC.
SECTION 1 | Safety Instructions
EnsurethatthemaximumOpenCir-
cuitVoltageVocofthe12Vnominal
Solar Panel / the Solar Array
islessthan26V.
• Donotexceedthemaximumcurrent
ratingof8A.ThecontinuousShort
Circuit Current of the solar panel /
array should be less than 8 A.
• Donotexceedabatteryvoltageof
12V(nominal).Donotuseabattery
lessthan12V.
• Chargeonly12Vlead-acidbatteries
• DONOTshortcircuitthePVarrayor
load while connected to the controller.
Thiswilldamagethecontroller.
• Neverallowthesolarpanel/arrayto
be connected to the controller with
thebatterydisconnected.Theinternal
protectionsareactivatedonlywhen
the12Vbatteryisconnected.
• Useonlycopperwirewithminimum
75°Cinsulationrating.Thesizeofthe
wiring should be chosen depending
upon the distance of the controller
from the panel / array and the battery
tolimitthevoltagedropto<2%
for 10 A.
• TheNegativesystemconductorshould
be properly grounded. Grounding
should comply with local codes.

4 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 5
SECTION 2 | Features of the SCC-1208L
SCC-1208LisaSeriesTypeofPWM(Pulse
WidthModulation)ChargeController.
Itisbasedonanadvanceddesignusing
a microcontroller for digital accuracy and
fullyautomaticoperation.Itcanbeused
for12Vsystemsforsolarcharging.The
PWMbatterycharginghasbeenoptimized
for longer battery life.
Features
• Advancedmicrocontrollerbased,
high performance design for digital
accuracy and fully automatic and
intelligent operation
• Designedfor12Vnominalsolar
panelsand12Vbatterysystem
• 8Acontinuouschargingcapacity–
enablesuseofupto130W,
12VSolarPanelswithOpenCircuit
Voltageofupto26V
• SeriesModePWM(PulseWidthModu-
lation)chargingdesignforlowloss,
higher efciency charging and longer
battery life. See Section 3-1 for details
• 3Stagesofchargingfor100%return
ofcapacityandlongbatterylife–Bulk,
Absorption and Float Stages
• Cansafelycharge2typesofLeadAcid
batteries–Flooded/WetCell(Absorp-
tionVoltage14.8V)orSealedAGM
(AbsorptionVoltage14.5V)
• Verylowselfconsumptionof<9mA
• MOSFETbasedreversecurrentblocking
for night-time battery discharge pre-
vention.Thisallowsmuchlowerlosses
ascomparedtoDiodebasedblocking
• Totallysealedandsplashproofdesign
withIngressProtectionRatingofIP65.
Can be installed in outdoor locations
• Wideoperatingtemperaturerangeof
-40°Cto+60°C
• Automaticallyturnsontheloads(like
lights)whendarkandturnsoffatday
time.Idealforstreetlights/automatic
night lighting
• Lowvoltagedisconnectprotectsthe
battery against deep discharge when
the load is connected to the Load
Terminals.
• Protectedagainstoverload,overtem-
perature,under/overvoltageonthe
batterysideandreversepolarity(see
Specications)
• EMCcompliancetoFCCStandardPart
15(B)forClassBDevicesandEuropean
Standard EN61000
• Industryleadingwarrantyof5years.
PWM Battery Charging Algorithm
used in SCC-1208L
Please read Section 3-1 for supplementary
information.
Fig.2.1(page6)representsthe3stagesof
chargingusedinSCC-1208L.Thecharging
is carried out in 3 stages:
Stage1–ConstantCurrentBulk
Charging Stage
Inthisstage,theMOSFETSwitchisin
“on”conditioncontinuouslytillthenext
AbsorptionStagevoltageisreached.As
theMOSFETswitchisin“on”condition
continuously,theSolarPanelisconnected
to the battery continuously and it

6 | SAMLEX AMERICA INC.
SECTION 2 | Features of the SCC-1208L
deliversaconstantcurrentequaltothe
ShortCircuitCurrentIscoftheSolarPanel.
Thevoltageseenattheoutputofthecon-
trollerwillbetheactualbatteryvoltage
which will keep on rising till it approaches
theAbsorption/GassingVoltageof
14.8V+/-0.2VforFloodedBatteryand
14.5V+/-0.2VforSealedAGMbattery
(at25°C).TheAbsorption/GassingVolt-
ageisthevoltageatwhichtheelectrolyte
in the battery begins to break down into
HydrogenandOxygengases.Onreaching
theAbsorptionVoltage,thecontrollerwill
transitiontotheAbsorptionStage.The
bulkstagerestoresabout80%ofthe
battery’s capacity.
NOTES:
As the Bulk Charge Stage is a constant
currentstage,thecontrollerdoesnot
controlthevoltageandthevoltageseen
at the output terminals of the controller
willbetheactualbatteryvoltage(thiswill
rise slowly towards the Absorption / Gas-
singVoltageundertheinuenceofthe
constantchargingcurrent).Also,thecon-
troller does not control the current and
the Bulk Charging Current will be equal
totheShortCircuitCurrentIscoftheSolar
Panel. Constant current is ensured by the
constant current characteristic of the Solar
Panelintheregionofupto15V.
!CAUTION
As already pointed out above, when in
the Bulk Charge Stage, the controller is
not able to control the value of the charg-
ing current. The Bulk Charging Current
will be equal to the Short Circuit Current
Isc of the Solar Panel. Hence, it should
be ensured that the AH capacity of the
battery (at 20 Hr Discharge Rate) is more
than at least 10 times the Short Circuit
Current Isc of the Solar Panel. For exam-
ple, if a 130 W Solar Panel with Short
Circuit Current Isc of around 8 A is being
used, the AH capacity of the battery
should be > 80 AH.
Stage2–AbsorptionStage
DuringtheAbsorptionStage,thecontrol-
ler changes from a constant current to
constantvoltagecharging.Thecharging
voltageisheldconstantneartheGassing
Fig. 2.1 Solar Charging Stages

6 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 7
SECTION 2 | Features of the SCC-1208L
Voltagetoensurethatthebatteryisfur-
ther charged to the full capacity without
overcharging.TheAbsorptionStage
restoresthebalance20%ofthecapacity.
Astheoutputvoltageofthecontroller
isheldconstant,thebatteryabsorbsthe
charge slowly and the current reduces
gradually till all of the soft Lead Sulfate
(PbSO4)crystalshavebeenconvertedto
LeadDioxide(PbO2)onthePositivePlates
andSpongeLead(Pb)ontheNegative
Plates.
InSCC-1208L,theAbsorptionStage
isaconstantvoltagestageof
14.8V+/-0.2VforFloodedBatteryand
14.5V+/-0.2VforSealedAGMbattery
(at25°C).Theconstantcurrentfrom
the Solar Panel is not fed to the battery
continuouslybutinpulsesofvarying
pulsewidthatfrequencyof30Hz.This
technique allows the current to be ef-
fectively“tapered”asthebatterygets
chargedandtheresultisequivalentto
constantvoltagecharging.Forabattery
entering the Absorption Stage at around
80%chargedstate,the“OnTime”pulses
wouldbeverylongandalmostcontinu-
ous. As the charge state approaches the
end of Absorption and beginning of the
FloatStage,itmayjust“tick”andsend
veryshortpulsestothebattery.
WhenthebatteryreachestheAbsorption
Voltage,thePWMbeginstoholdthevolt-
ageconstant.Thisistoavoidover-heating
andover-gassingthebattery.Thecurrent
willtaperofftosafelevelsasthebattery
becomes more fully charged.
This stage will remain active for around 1
Hour and then the controller will transi-
tion to the Float Stage.
Stage3–FloatStage
Whenabatterybecomesfullycharged,
dropping down to the Float Stage will
provideaverylowrateofmaintenance
charging while reducing the heating and
gassingofafullychargedbattery.When
thebatteryisfullyrecharged,therecan
be no more chemical reactions and all the
charging current is turned into heat and
gassing.ThepurposeoftheFloatStage
is to protect the battery from long-term
overcharge.FromtheAbsorptionStage,
chargingvoltageisdroppedtotheFloat
Stagevoltageof13.8V±0.2.Duringthis
stage,PWMpulsesareofveryshortdura-
tionatfrequencyof30Hz.
In the case the battery voltage drops
below 12.5 VDC, a new cycle of Bulk,
Absorption and Float will start.
Night Light Function
ThisunithasafacilitywhereDCloads
thatareconnectedtotheLoadTerminals
will automatically be switched on at night
(SolarPanelvoltage≤3Vforatleast
10min)andswitchedoffduringdaytime
(solarPanelvoltage≥4Vforatleast
10min.)Thistypeofloadgenerally
consistsofnightlighting.Thecontinuous
loadcapacityis8Amaximum(10Afor
5min).Incasetheloadishigherthan
12A,theloadwillbeswitchedoffand
will reset automatically once the load
current is reduced. It will reset automati-
cally 2 times* and after that, a manual
reset will be required that will involve
disconnecting the Solar Panel and the
battery connections (*Note: time interval
between the 1st auto-reset and the 2nd
auto-reset is around 1 minute).

8 | SAMLEX AMERICA INC.
SECTION 2 | Features of the SCC-1208L
Battery Low Voltage Disconnect
AnotherfacilityisprovidedwheretheloadconnectedtotheLoadTerminalswillbe
disconnectedtopreventdeepdischargeofthebattery.Deepdischargeofthebatteryis
more likely when the load is being powered during night time through the Night Light
Function.Ifthebatteryvoltagedropstolessthan11.5Vcontinuouslyfor5mintheload
willbeswitchedoffattheendof5min.Theloadwillbeautomaticallyre-connectedif
thebatteryvoltagerisesto12.4Vfor5min.Ifthebatteryvoltagedropsto9V,theload
willbedisconnectedimmediately(therewillbenotimedelay).
SECTION 3 | Installation & Operation
!CAUTION
1. The unit has internal protection circuits that are activated only when a
battery is connected to the unit. Hence, please ensure the following to
protect the unit against damage:
• Alwaysconnectthebatteryrstandthenthesolarpanel/array
• Donotdisconnectthebatterywhenthesolarpanel/arrayis
connected.Ifthebatteryisrequiredtoberemovedforservicing/
replacement,removethesolarpanel/arrayrstandthen
the battery
2. A battery is an unlimited source of current and can drive thousands
of Amperes of current into a short circuit across its terminals. If there
is a short circuit along the path of the battery connecting wires from
the battery to the controller, the section of wires from the battery to
thepointofshortcircuitwillmeltandburnandmaycauseinjury/re.
Hence, always install a current limiting type of fuse e.g. Class T fuse or
equivalent as close to the battery Positive terminal as possible
3. Doubly check the polarity of the connections with the help of a multi-
meter. Ensure that Positive is connected to Positive and Negative to
Negative. Avoid connecting in reverse polarity. The unit has internal,
self resetting protection against reverse polarity on the battery side

8 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 9
Accessories provided
for Installation
6piecesofTwist-onWireNutconnectors
havebeenprovidedforconnectionof
input and output wiring.
First,inserttwowirestogetherintocon-
nectorcap,andthenturnthecapuntilthe
two wires twisted tightly. Follow sequence
1to4showninthepicturesgivenbelow.
Layout of Input and
Output Connections
Thelayoutofthevariousinput/output
wires is shown in Fig. 3.1 below:
Fig 3.1 Legend:
1. Yellow wire PV +
Connects to the Positive terminal of
the Solar Panel
2. Black wire PV -
Connects to the Negative terminal of the
Solar Panel
3. Red wire Bat +
Connects to the Positive terminal of the battery
through a 10 A fuse
4. Black wire Bat -
Connects to the Negative terminal of the battery
5. White wire Load +
Connects to the Positive terminal of the load
(DC lamp) for Night Light Function
6. Black wire Load -
Connects to the Negative terminal of the load
(DC lamp) for Night Light Function
7. Blue wire Wet type battery
Is not connected if the battery is sealed type
(AGM). Is connected to the Bat – (4) if the battery
is Flooded / Wet Cell type
8. External fuse, 32 V, 10 A
SECTION 3 | Installation & Operation
Figure 3.1:
Layout & Installation Diagram
1 2 3 4 5 6 7
8
Earth Ground
PVPanel DCLamp
Lead Acid Battery
PV+ PV- Bat+ Bat- Load+ Load-
WetType
Battery

10 | SAMLEX AMERICA INC.
Installation Sequence
NOTE:
The controller uses internal MOSFET based
reverse current blocking for night-time
battery discharge prevention. This allows
much lower losses as compared to Diode
based blocking. Hence, it is not necessary
to provide external Blocking Diode.
Pleaseinstallthebattery,solarpaneland
the loads in the following sequence:
1. Connect the Black wire marked “Bat
Neg”(4)totheNegativeterminalof
the battery
2. ConnecttheNegativeterminalofthe
battery to Earth Ground for protection
against lightning
3. TheBluewire(7)isconnectedas
follows depending upon the type of
battery used:
• Forwetcell/oodedbattery:
Connect this wire to the Black
wiremarked“BatNeg”(4).This
willsettheAbsorptionvoltageto
14.8VDC+/-0.2VDC
• Forsealedbattery(AGM):This
wireisNOTconnected.Insulate
this wire with insulation tape .
ThiswillsetheAbsorption
Voltageto14.5VDC±0.2VDC
4. ConnecttheRedwiremarked“Bat+”
(3)thePositiveterminalofthebattery
througha32V,10Afuse(8).Thefuse
should be installed as close as possible
tothebatteryPositiveterminal.The
fuseisrequiredtopreventburning/
melting of the battery wires if there is
a short circuit anywhere in the portion
of wire between the battery and the
controller. Please note that current
limitingtypeoffusee.g.ClassTfuse
orequivalentisusedandisinstalledas
closetothebatteryPositiveterminalas
possible
5. Connect the Black wire marked
“Load-”(6)totheNegativeterminalof
theDCload(DCLamp)andtheWhite
wiremarked“Load+”(5)tothePositive
terminaloftheDCload(DClamp).
ThisconnectionisusedforNightLight
Function–Thelightwillautomatically
turnonatnight(SolarPanelvoltage
≤3Vforatleast10min)andturnoff
duringdaytime(solarPanelvoltage≥4
Vforatleast10min).Theloadshouldbe
on before the solar panel is connected
to subsequently check if the controller
has been connected correctly and is
working(SeeStep7)
6. ConnecttheNegativewireoftheSolar
paneltotheBlackwiremarked“PV-”
(2)andthePositivewireoftheSolar
PaneltotheYellowwiremarked“PV+”
(1)
7. Ifthesolarpanelisconnectedduring
thedaytime,itsoutputvoltagewillbe
highandtheDCLoad(DClamp)willbe
switched off because the Night Light
Function is designed to switch off the
loadifthevoltageofSolarPanelis
higherthan4Vfor10min.(theDCload
waskeptswitchedoninStep5)
8. Ifnightlightfunctionisnotdesired,
ignoreStep5andconnectDCload
directly to the battery
SECTION 3 | Installation & Operation

10 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 11
Principle of Operation of
PWM (Pulse Width Modulation)
Battery Charging
A Lead Acid Battery is normally charged to
full capacity using the following 3 stages
ofcharging(SeeFig.2.1):
• First Stage: Constant Current Bulk
Charge Stage
• Second Stage:ConstantVoltage
Absorption Stage
• Third Stage:ConstantVoltage
Float Stage
PWM(PulseWidthModulation)battery
charging is the most efcient and effec-
tivemethodforrechargingabatteryin
asolarsystem.TheSolarpaneliscon-
nected to the battery through a series or
parallel(calledShunt)connectedMOSFET
Switch.DuringtheConstantCurrentBulk
ChargeStage,theMOSFETSwitchis“on”
continuouslytillthenextAbsorption
Stageisreached.AstheMOSFETswitchis
in“on”conditioncontinuously,theSolar
Panel is connected to the battery continu-
ouslyanditdeliversaconstantcurrent
nearly equal to the Short Circuit Current
Isc.(actuallyequaltothecurrentonthe
V-Icurveofthepanelcorrespondingto
thebatteryvoltage).
ThesubsequentAbsorptionandFloat
Stagesareconstantvoltagestages.The
MOSFETswitchcanNOTbekeptin“ON”
condition continuously as it will result
in continuation of the Constant Current
StageduetotheV-Icharacteristicof
theSolarPanel.Inordertoconvertthe
constant current characteristic of the Solar
Paneltoaconstantvoltagecharacter-
isticforbatterychargingpurposes,the
constant current from the Solar Panel is
not fed to the battery continuously but
inpulses.TheMOSFETSwitchturns“on”
and“off”ataxedfrequencywherethe
widthofthe“OnTime”iscontrolled(in
SCC-1208L,thefrequencyis30Hz).This
iscalledPWMorPulseWidthModula-
tion.TheratioofOnTimeoftheMOSFET
SwitchtothesumofOnandOffTimesis
calledtheDutyCycleandisspeciedin
percentage.Forexample,iftheMOSFET
Switch remains in “on” condition continu-
ously,theDutyCyclewillbe100%andif
it remains in “on” condition for half the
time out of the sum of “on” and “off”
times,theDutyCyclewillbe50%.When
theMOSFETswitchisinthe“on”condi-
tion,ashortpulseofconstantcurrentwill
be fed to the battery corresponding to
thevoltageofthebatteryatthattime.
Duringthispulseofconstantcurrent,the
batteryvoltagewillrisetoahigherlevel
ifthedurationofthe“OnTime”pulse
oftheMOSFETSwitchislongerandwill
risetoalowerlevelifthedurationofthe
“OnTime”pulseoftheMOSFETSwitchis
shorter.Thecontrollerchecksthevoltage
ofthebatteryduringthe“OffTime”of
theMOSFETSwitchandadjuststhenext
DutyCycle(widthofthe“OnTime”)to
ensurethatthebatteryvoltageiskept
constant.Thistechniqueallowsthecur-
renttobeeffectively“tapered”asthe
battery gets charged and the result is
equivalenttoconstantvoltagecharging.
For a battery entering the Absorption
Stageataround80%chargedstate,the
“OnTime”pulseswouldbeverylongand
almost continuous. As the charge state
approaches the end of Absorption and
beginningoftheFloatStage,itmayjust
“tick”andsendveryshortpulsesto
the battery.
SECTION 3-1 | Supplementary Information

12 | SAMLEX AMERICA INC.
Series and Shunt Types
of Charge Controller
WhentheMOSFETSwitchisconnectedin
series with the Solar Panel and the bat-
tery,theControlleriscalledSeriesType.
Whenitisconnectedinparallelacrossthe
SolarPanelandtheBattery,itiscalled
ShuntType.InSeriesType,theMOSFET
Switch is kept open when the battery
isfullycharged.TheSolarPanelstops
supplyingcurrentduringthisperiod.In
theShuntType,whenthebatteryisfully
charged,theMOSFETSwitchiskeptclosed
toshunt(divert)thefullShortCircuitCur-
rent of the Solar Panel away from
the battery.
Advantages of Series Type
of Charge Controller
ASeriesTypeofChargeControllerhasthe
followingadvantagesoveraShuntType:
• Powersystemsexperiencetemporary
overvoltageconditions.Forexample,
whenlightningstrikes,extremelyhigh
electrostaticenergyisdischarged.This
energyinducesdamaginghighvolt-
agetransientsinexposedandun-pro-
tected electrical circuit elements like
cablesetcandthesehighvoltagetran-
sientsarefedtotheelectricaldevices
andcausedamageifthedeviceisnot
adequately protected. Solar Systems
and associated cabling are installed in
exposedlocationsandhence,theyare
more prone to the damaging effects
ofhighvoltagetransients.LargeSolar
Systems employ numerous lightning
protectiondeviceslikeLightningRods,
SurgeSuppressors,shieldedcablesetc.
However,insmallSolarSystems,these
protections are seldom incorporated.
Becausethereislesssystemlevelpro-
tection,smallSolarChargeControl-
lers are more susceptible to damage
byhighvoltagetransients.Transient
VoltageSurgeSuppressors(TVSS)are
used to protect the input and output
sectionsoftheChargeController.The
TVSSclampsthehighvoltageofthe
transienttoasafelevel.TheClamping
VoltageisseenbytheMOSFETand
temporarilystressestheMOSFET.Ina
SeriesTypeofChargeController,the
MOSFETSwitchislocatedbetween
the input terminals and the battery.
Hence,thevoltageseenacrossthe
MOSFETSwitchduringhighvoltage
transient condition is lower and is
equaltotheClampingVoltageofthe
TVSSminusthebatteryvoltage.This
produces lower stress. On the other
hand,inaShuntTypeChargeControl-
ler,theMOSFETSwitchseesthefull
ClampingVoltageand,therefore,itis
stressed to a higher degree.
• Lessswitchingnoise
• Duringcharging,theShuntMOSFET
Switchexperienceshigherlevelof
stress because it is in a high tempera-
ture,reversebiasstand-offcondition
• ThevoltageappliedacrosstheSeries
MOSFETSwitchislesserandhence,it
experienceslesserstressandis,there-
fore more reliable
SECTION 3-1 | Supplementary Information

12 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 13
SECTION 3-1 | Supplementary Information
• AShuntTyperequiresaSchottky
Diodeinserieswiththebatteryto
preventshortcircuitingofthebattery
duringthetimetheMOSFETswitch
shuntsthePVArray.InaSeriesType,
thisSchottkyDiodeisnotrequired.
EliminationoftheSchottkyDiodein
theSeriesTypehasthefollowingas-
sociatedadvantages:
-Lowervoltagedrop,lessheating
and consequent lower losses
-Reverseleakagethroughthe
Schottky is eliminated
For More Information
on the following topics, please
refer to the "Technical Support"
section on our website at
www.samlexamerica.com:
1. Electrical Characteristics of
Solar Panels.
2. Lead Acid Batteries and Principles
of Charging.

14 | SAMLEX AMERICA INC.
SECTION 4 | Specications
SPECIFICATIONS OF SOLAR PANEL
Nominal Voltage 12V
Maximum Open Circuit Voltage, Voc 26V
Rated Short Circuit Current , Isc 8A
Max. Short Circuit Current (5 minutes) 10A
BATTERY CHARGING
Bulk Charge Current: EqualtotheShortCircuitCurrentIscoftheSolarPanel
Absorption Voltage - Sealed Battery 14.5V±0.2V
AbsorptionVoltage-Flooded/WetCellBattery 14.8V±0.2V
Float Voltage 13.8V±0.2V
LOAD
Rated Load Current 8A
Max. Load Current (5 minutes) 10A
PV Voltage to turn on the Night Light Mode load ≤3Vfor10min.
PV Voltage to turn off the Night Light Mode load ≥4Vfor10min.
OTHER OPERATING PARAMETERS
Minimum Battery Voltage for Operation 3V
Minimum Voltage of Battery to start Charging 7V
No Load Current Draw 9mA
Voltage Drop Across Battery Terminals to Load Terminals 0.35Vat8A
Voltage Drop Across Solar Panel Input Terminals to Battery Terminals 0.5Vat8A
PROTECTIONS
Over Temperature Protection:Shutsdownwheninternalheatsinktemperatureis95°C±10°C.
Auto-resetswhenheatsinkcoolsdownto75°C±10°C.
Over Voltage Protection for Battery:16V.Autoreset
Deep Discharge Protection: Disconnectloadifbatteryvoltagedropsto≤11.5V±0.2Vfor5min/
Immediatelyif≤9V;Reconnectloadafterbatteryvoltagerisesto≥12.4V±0.2Vfor5min
Over Current (on Load Terminals): Shutsdownat≥12A.Autoresetafter1min.Shutsdownagain
if≥12A.Willnowlatchinshutdownconditionandrequiresmanualresetbyrstdisconnecting
thepanelandthenthebattery.Toreconnect,rstconnectthebatteryandthenthepanel.
Battery Terminal Reverse Polarity Protection: Yes. Auto reset
ENVIRONMENTAL & SAFETY
ENVIRONMENTAL: Ambient Temperature Range -40to+60°C
ENVIRONMENTAL:IngressProtection/RelativeHumidity IP65/100%
SAFETY: EMC Compliance: FCCPart15(B),ClassB;CE,EN61000-3-1,61000-6-3
DIMENSIONS AND WEIGHT
Dimensions(LxWxH)/Weight:97x46x26mm/125gram

14 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 15
SECTION 5 | Warranty
5 YEAR WARRANTY
SCC-1208LmanufacturedbySamlexAmerica,Inc.(the“Warrantor“)iswarrantedtobefreefrom
defectsinworkmanshipandmaterialsundernormaluseandservice.Thewarrantyperiodis5
yearsfortheUnitedStatesandCanada,andisineffectfromthedateofpurchasebytheuser(the
“Purchaser“).
WarrantyoutsideoftheUnitedStatesandCanadaislimitedto6months.Forawarrantyclaim,the
PurchasershouldcontacttheplaceofpurchasetoobtainaReturnAuthorizationNumber.
ThedefectivepartorunitshouldbereturnedatthePurchaser’sexpensetotheauthorizedlocation.
Awrittenstatementdescribingthenatureofthedefect,thedateofpurchase,theplaceofpurchase,
andthePurchaser’sname,addressandtelephonenumbershouldalsobeincluded.
IfupontheWarrantor’sexamination,thedefectprovestobetheresultofdefectivematerialor
workmanship,theequipmentwillberepairedorreplacedattheWarrantor’soptionwithoutcharge,
andreturnedtothePurchaserattheWarrantor’sexpense.(ContiguousUSandCanadaonly)
NorefundofthepurchasepricewillbegrantedtothePurchaser,unlesstheWarrantorisunableto
remedythedefectafterhavingareasonablenumberofopportunitiestodoso.Warrantyservice
shallbeperformedonlybytheWarrantor.Anyattempttoremedythedefectbyanyoneotherthan
theWarrantorshallrenderthiswarrantyvoid.Thereshallbenowarrantyfordefectsordamages
causedbyfaultyinstallationorhook-up,abuseormisuseoftheequipmentincludingexposureto
excessiveheat,saltorfreshwaterspray,orwaterimmersion.
Nootherexpresswarrantyisherebygivenandtherearenowarrantieswhichextendbeyondthose
describedherein.Thiswarrantyisexpresslyinlieuofanyotherexpressedorimpliedwarranties,
includinganyimpliedwarrantyofmerchantability,tnessfortheordinarypurposesforwhich
suchgoodsareused,ortnessforaparticularpurpose,oranyotherobligationsonthepartofthe
Warrantororitsemployeesandrepresentatives.
ThereshallbenoresponsibilityorliabilitywhatsoeveronthepartoftheWarrantororitsemployees
andrepresentativesforinjurytoanypersons,ordamagetopersonorpersons,ordamageto
property,orlossofincomeorprot,oranyotherconsequentialorresultingdamagewhichmay
beclaimedtohavebeenincurredthroughtheuseorsaleoftheequipment,includinganypossible
failureofmalfunctionoftheequipment,orpartthereof.TheWarrantorassumesnoliabilityfor
incidental or consequential damages of any kind.
Samlex America Inc. (the “Warrantor”)
www.samlexamerica.com

11007-SCC-1208L-0414
Contact
Information
Toll Free Numbers
Ph: 800 561 5885
Fax: 888 814 5210
Local Numbers
Ph: 604 525 3836
Fax: 604 525 5221
Website
www.samlexamerica.com
USA Shipping Warehouse
Kent WA
Canadian Shipping Warehouse
Delta BC
Email purchase orders to

Veuillez lire ce
manuel AVANT
d'utiliser votre
régulateur de
charge solaire
Manual
D'Utilisation
Régulateur
de charge
solaire
8 Amp
SCC-1208L

2 | SAMLEX AMERICA INC.
MANUEL D'UTILISATION SCC-1208L | Indice
SECTION 1
Consignes de Sécurité .......................................................... 3
SECTION 2
Caractéristiques du SCC-1208L ............................................7
SECTION 3
Installation et Fonctionnement...............................................9
SECTION 3-1
Renseignements Supplémentaires....................................... 11
SECTION 4
Spécications ......................................................................14
SECTION 5
Garantie ..........................................................................15

2 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 3
SECTION 1 | Consignes de Sécurité
Veuillez lire ces instructions avant
d'installer ou d'utiliser le régulateur de
charge an d’empêcher des blessures ou
d’endommager le régulateur de charge.
GÉNÉRAL
Installation et conformité du câblage
• L’installation et le câblage doivent être
conformes aux Normes Électriques
Locales et Nationales ; l’installation
doit être faite par un(e) électricien(ne)
certié(e).
Prévention des décharges électriques
• Le conducteur négatif du circuit doit
être correctement mis à la terre. La mise
à la terre doit être conforme aux codes
locaux.
• Débranchez tous les raccordements
latéraux d'entrée et de sortie avant de
travailler sur n'importe circuit associé au
contrôleur de charge.
Lieu d'installation
• Le contrôleur résiste aux éclaboussures
et peut être monté à l'extérieur en
position verticale. Ne l'exposer pas à une
température ambiante > 60°C.
Prévention des risques d’incendie et
d'explosion
• L'utilisation du régulateur de charge
pourrais produire des arcs électriques
ou des étincelles. Par conséquent, le
régulateur de charge ne doit pas être
utilisé dans les endroits où il y a des ma-
tériaux ou gaz nécessitant des équipe-
ments ignifuge,Par exemple des espaces
contenant des machines alimenter par
essence, des réservoirs d'essence ou des
compartiments à batterie.
Précautions à prendre pour travailler avec
des batteries
• Les batteries contiennent de l’acide
sulfurique, électrolyte corrosif. Certains
précautions doivent être prises an
d’empêcher tout contact avec la peau,
les yeux ou les vêtements.
• Lesbatteriesproduisentdel'oxygène
etdel'hydrogène,mélangedegaz
explosif, Lorsqu'elles sont rechargées.
Ventilez à fond la zone de la batterie et
suivez les recommandations du fabri-
cant pour l'emploi de la batterie.
• Nejamaisfumernimettreuneamme
à proximité des batteries.
• Soyezprudent,réduisezlesrisques
dechuted'objetmétalliquesurla
batterie. Ce qui pourrait provoquer des
étincelles ou court-circuiter la batterie
oud'autrespiècesélectriquesetcauser
une explosion.
• Retireztoutobjetmétallique:bagues,
bracelets, montres et etc. lorsque vous
travaillez avec des batteries. Les batter-
ies pourraient produire un court-circuit
assezpuissantpoursouderl'objet
causant une brûlure grave.
• Sivousdevezenleverlabatterie,retirez
toujourslabornenégativedelabat-
terie en premier. Assurez que toutes les
accessoires soient éteintes, pourne pas
provoquer d’étincelle. .
RELATIF AU RÉGULATEUR
DE CHARGE
• Il faut assurer que la tension d'entrée
alimentée au régulateur de charge ne
dépasse pas 26 VCC an de prévenir des
dommages permanents au régulateur
de charge.
Assurez-vous que la tension maximale en

4 | SAMLEX AMERICA INC.
SECTION 1 | Consignes de Sécurité
circuit ouvert Vco du panneau solaire/
tableau solaire nominal de 12 V est
inférieure à 26 V.
• Ne dépasser pas le courant maximal de
8 A. Le courant continu du circuit court
du panneau/tableau solaire doit être
inférieur à 8 A.
• Nedépasserpasunetensiondebat-
terie de 12 V (valeur nominale). Ne pas
utiliser une batterie inférieure à 12 V.
• Chargerseulementlesbatteriesau
plomb-acide 12.
• NEPAScourt-circuiterletableauoula
charge photovoltaïque quand il/elle est
branché(e) au régulateur. Cela endom-
magerait le régulateur.
• Nejamaislaisserlepanneau/tableau
solaire connecté au régulateur si la
batterie est débranchée. Les protections
internes sont activées seulement lorsque
la batterie de 12 V est connectée.
• Utilisezuniquementdeslsencuivre
avec une classication d’isolatio mini-
male de 75 °C. La taille du câblage doit
être choisie en fonction de la distance
du régulateur à partir du panneau/tab-
leaujusqu'àlabatterieandelimiterla
chute de tension à < 2% pour 10 A.
• Leconducteurnégatifducircuitdoit
être correctement mis à la terre. La mise
à la terre doit être conforme aux codes
locaux.
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