Manual

LED
On
Off
Slow Flash
Fast Flash
BATTERY S TATUS
Combined
Isolated
Isolated
Start isolation
Isolated
Under voltage lockout
REASON
Charging
Discharging
Start Isolation wire
is energised
One or both batteries are below
9.5V (12V System) 19V (24V System)
L E D S t a t u s C h a r t
SI-ACR Automatic Charging Relay with Start Isolation
•Automaticallycombinesbatteriesduringcharging,isolatesbatterieswhendischarging
 andwhenstartingengines
•Supportshigh-outputalternatorsupto120Amps
•Ignitionprotected—safeforinstallationaboardgasolinepoweredboats
•LEDlightisONwhenbatteriesarecombined
•Allowstemporaryisolationofhouseloadsfromenginecircuitduringenginecrankingtoprotect
 sensitiveelectronics—startisolationindicatedbyblinkingLED
•Undervoltagelockout—willnotclosewhenthelowerbatteryisbelow9.5V@12Vsystems
 or19V@24Vsystems—lockoutindicatedbyblinkingLED
•For12or24voltsystems
•DualSensing—senseschargesourceoneitherbatterybank
MarineElectricalProd ucts
Add-A-Battery
PN 7650
Specications
CrankingRating(10sec.) 1,000Amps
CrankingRating(1min.) 750Amps
IntermittentRating(5min.) 525Amps
ContinuousRating 350Amps
MaximumVoltage 32Volts
CableSizetoMeetRatings 4/0AWG
TerminalStudSize 3/8"-16(M10)
MaximumTorque 140in-lbs
Regulatory
Emarkedforignitionprotection,meetsUL1500andSAEJ1171externalignition
protectionrequirements
RatedIP66---protectedagainstpowerfulwaterjets
990310020Rev.007
e
-Series, Dual Circuit Plus™ Battery Switch
•SwitchestwobatterybankssimultaneouslywithonesimpleON/OFFswitchwhilemaintainingbatterybank
 isolation,minimizingtheriskofadeadstartbattery
•TheCOMBINEBATTERIESfunctionparallelstwobatterybanksintheeventofalowbattery
•Meetsexternalignitionprotectionrequirements
Electrical Connections
• Thewiringdiagramillustratedonthebackpagerepresentsacommoninstallationandisnotmeantto
 beaguideforwiringaspecicvessel.
Caution:Disconnectbatteryconnectionsbeforebeginningtheinstallation.
Reconnectaftertheinstallationiscomplete.
 UsethewiresizingchartbelowtoselecttheappropriatewiresizestopreventoverheatingtheACR.
e
-Series, Dual Circuit Plus™ Battery Switch Installation:
•Mountthebatteryswitchinaneasilyaccessiblelocationclosetothebatteries.
•Attachone4/0AWGcableperterminaltomeetratings.
•Terminalsmustbeattachedundernutandlockwasher.Torqueto140in-lb(15.82N-m)
Operation
• TurnallloadsoffbeforeturningthebatteryswitchtoOFF.
• DonotswitchtoOFFwhiletheengineisrunning.
• Open/CloseCycling―Ifyourelectricalsystemisconguredwithachargingsourcethatcannotsupplythefullload
currentbeingdrawnfromthereceivingbatteries,anopen/closecyclingprocesscanoccur.Ifthiscyclingcontinues,
thesecondbatterybankcouldeventuallydischargeeventhoughachargesourceispresent.
• The120ASIACRisnotintendedtocarrystartingcurrents.UsethebatteryswitchCOMBINEBATTERIESposition
tocombinebatterybanksforemergencystarting.
*Largerwiresizesmayberequiredtominimizevoltagedropinlongwireruns.
 FormoreinformationpleaseusetheCircuitWizardatwww.circuitwizard.bluesea.com.
SI-ACR Installation:
•Tominimizecorrosiontowireandterminals,mountinadryandprotectedlocation.Avoidlocationsdirectly
abovebatterybanks.
•Tosensechargingsourcesoneitherbatterybank,connectonebatterybankpositivetostudterminalA.
ConnecttheotherbatterybankpositivetostudterminalB.
•ConnectthequickconnectterminalmarkedGND(ground)totheDCsystemgroundthroughatentofteenamp
in-linefusetopreventfaultcurrentsfromowinginthiswire.
•ConnectawirefromthequickconnectterminalmarkedSI(startisolation)totheterminalorwirerunning
fromthestartkeyswitchtothestartersolenoid.Makethisconnectionthroughanin-linefuseof1to10Amps.
Thisconnectioncanbemadeatthestartkeyswitchoratthestartersolenoid,butmustbetothelinethatis
positiveonlywhencranking.Connectiontoalinethatispositivewhiletheengineisnormallyrunningwillprevent
thechargingrelayfromworkingproperly.
•ToconnectaremoteLEDindicator,connecttheredwireoftheLEDtoapositivesourcethrougha2Ainlinefuse.
ConnecttheyellowwireoftheLEDtothequickconnectterminalmarkedLED.
•Remoteindicatorlamp–mirrors“COMBINED”LEDonunit.Appropriate12/24VLEDsincludeBlueSeaSystemsPNs8033
(amber),8171(red),or8172(green).
Guarantee
BlueSeaSystemsstandsbehinditsproductsforaslongasyouownthem.
Finddetailedinformationatwww.bluesea.com/about.
Forcustomerservice,call800-222-7617.
Installation Instructions
Specications 12V DC 24V DC
ContinuousRating  120A  120A
IntermittentRating(5min.) 210A  210A
MaximumCableSize 1/0AWG 1/0AWG
TerminalStudSize  3/8"-16(M10) 3/8"-16(M10)
MaximumTorque  140in-lbs 140in-lbs 
Relay Contact Position
Combine  (30sec.) 13.6V 27.2V
    (2min.) 13.0V 26.0V
OpenLow  (10sec.) 12.35V 24.7V
    (30sec.) 12.75V 25.5V
OverVoltageLockout 16.0V 30.0V
UnderVoltageLockout 9.5V  19V
Regulatory
Emarkedforignitionprotection,meetsISO8846,UL1500andSAEJ1171external
ignitionprotectionrequirements
RatedIP67----temporaryimmersionfor30minutes
Wire Size and Fuse Rating Chart (AWG)
Charging Amps Minimum Wire Size* Fuse Rating
≤60 #6 75-90A
≤80 #4 100-125A
≤100 #2 150A
≤120 #1 175A