Blue Sea Systems 7611 User manual

Blue Sea Systems
Brand
Blue Sea Systems
Model
7611
Type
User manual

This manual is also suitable for

Blue Sea Systems 7611 is an Automatic Charging Relay (ACR) with Auxiliary Battery Priority designed to improve battery charging and management in marine electrical systems. It automatically combines batteries during charging and isolates them during discharging, ensuring optimal charging for both starting and house batteries.

Key features of the 7611 ACR include:

  • High continuous rating of 120A to support high output alternators
  • Auxiliary Battery Priority connection that allows the alternator to charge the auxiliary battery longer, extending the use of auxiliary loads when the engine is running

Blue Sea Systems 7611 is an Automatic Charging Relay (ACR) with Auxiliary Battery Priority designed to improve battery charging and management in marine electrical systems. It automatically combines batteries during charging and isolates them during discharging, ensuring optimal charging for both starting and house batteries.

Key features of the 7611 ACR include:

  • High continuous rating of 120A to support high output alternators
  • Auxiliary Battery Priority connection that allows the alternator to charge the auxiliary battery longer, extending the use of auxiliary loads when the engine is running
Mounting
• Toavoidcorrosiontoconnectingwiresandterminals,mountinadryandprotectedlocation
ifpossible.Avoidlocationsdirectlyabovethebatterybanks.
Electrical Connections
• Thewiringdiagramsillustratedonthebackpagerepresentcommoninstallationsandarenotmeantto
beaguideforwiringaspecicvehicle.
• The7611ACRisnotintendedtocarrystartingcurrents.Useabatteryswitchingsystemwitha
combinebatteries/parallelfunctionifbatteriesmayneedtobecombinedforemergencystarting.
Caution: Disconnectbatteryconnectionsbeforebeginningtheinstallation.
UsetheWireSizeandFuseRatingschartonpage2toselecttheappropriatewiresizestoprevent
overheatingtheACR.
Voltage Sensing
• The7611ACRwillsensechargingsourcesavailableoneitherbatterybank.
Minimum connections for operation:
•ConnectonebatterybanktostudterminalA.
•ConnecttheotherbatterybanktostudterminalB.
•ConnectthequickconnectterminalmarkedGroundtotheDCsystemgroundthrough
atentofteenampin-linefusetopreventfaultcurrentsfromowinginthiswire.
Optional connections:
1. Auxiliary Battery Priority
The7611ACRcanbeconguredtoallowbatteriestoremain“paralleled”downtoadecreased
“OpenLow”voltageof12.25/24.5VDCifdesired.Enablethisfeatureifyouneedtoaccesssomeofyour
enginestartbattery’sstoredenergyforaccessoryloads.Thefeaturecanbeconguredfortemporary
usewhiletheignitionison,orpermanently.Wiringpermanentlyallowsthisdevicetoalsobeusedasa
LowVoltageDisconnect(LVD)topreventaccidentalandpotentiallydamagingover-dischargeof
accessorybatteriesbydisconnectingloads.
To enable temporary voltage override:
 • ConnectawirefromthequickconnectterminalmarkedAux.BatteryPrioritythroughan
  appropriatelysizedin-linefuse(1Ato10A)toaterminalorwirerunningfromtheignitionswitch
  thatis+12/24VDCwhiletheignitionison,andat0VDCwhenignitionisoff.
To enable permanent voltage override:
• ConnectawirefromthequickconnectterminalmarkedAux.BatteryPrioritythroughan
appropriatelysizedin-linefuse(1Ato10A)toa+12/24VDCsource
2. Remote indicator lamp –mimics“COMBINED”LEDonunit.
Appropriate12/24VLEDsincludeBlueSeaSystemsPNs8033(amber),8171(red),or8172(green).
To connect a remote LED indicator:
• ConnecttheredwireoftheLEDtoa12/24Vpositivesourcethrougha2Ainlinefuse.
• ConnecttheyellowwireoftheLEDtothequickconnectterminalmarkedLED.
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.
BatteryLink
®
ACR
Automatic Charging Relay
with Auxiliary Battery Priority
980011740Rev.002
Features
•Automaticallycombinesbatteriesduringchargingandisolatesbatterieswhendischarging
•OptionalAuxiliaryBatteryPriorityconnectionsharesthealternatorchargewiththeAuxiliarybattery
longerallowingtheuseoftheauxiliaryloadsforanextendedperiodoftimewhentheengineisrunning
•120AContinuousratingtosupporthighoutputalternators
•Onetenthofthevoltagedropofabatteryisolatorresultsinmorefullychargedbatteries
•Dualsensingtomanagemultiplechargesources
•Robust,fullysealedassemblyforreliabilityinenvironmentswithvibrationandmoisture
•Clip-oncoverinsulatesterminalconnections
•Easytoinstall
•IntegratedLEDindicatesACRstatus(LEDisONwhenbatteriesarecombined)
•OptionalremoteLEDoutputforindicationofACRstatus
Specications 12V DC 24V DC
ContinuousRating 120A 120A
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
MaleQuickConnectTerminals 1/4″x.032″ 1/4″x.032″
Relay Contact Position
Combine (30sec.) 13.6VDC 27.2VDC
Combine (2min.) 13.0VDC 26.0VDC
OpenLow (30sec.) 12.75VDC 25.5VDC
Open-OverVoltageLockout 16.0VDC 32.0VDC
Auxiliary Battery Priority
Optional Feature
OpenLow (30sec.) 12.25VDC 24.5VDC
Regulatory
Emarked for Ignition Protection, Meets ISO 8846,
UL 1500 and SAE J1171 external ignition
protection requirements
Rated IP67----protectedagainstimmersionupto
1meterfor30minutes
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.
PN 7611
MarineElectricalProd
ucts
Installation Instructions
LED Status Chart
LED Relay Status
ON Closed BatteriesCombined
OFF Open BatteriesIsolated
980011740Rev.002
425 Sequoia Drive
Bellingham, WA 98226 USA
p 360.738.8230
p 800.222.7617 USA and Canada
f 360.734.4195
www.bluesea.com
Recommended Installation Diagram
*Thisinstallationdiagramshowsatypicalapplicationonly.Yourapplicationmaydiffer.
Forfurtherinformation,pleasegotowww.bluesea.comandnavigateto
Resources/ApplicationBriefsandTechnicalBriefs.
*BecausetheBatteryLink™ACRisDualSensing,terminalsAandBareinterchangeable.
ACRfunctionwillnotbeaffectedbyreversalofthestartingandhousebatteriesversus
thediagram.
*ItisrecommendedthattheACRbeconnecteddirectlytoyourbatterypositiveterminals
throughappropriatelysizedfuses.Connectinginadifferentlocationsuchasabattery
switchmayaffectaccuracybecauseofvoltagedropalongcurrentcarryingconductors.
*Ifyouarenotknowledgeableaboutelectricalsystems,pleaseconsultanelectrical
professionalforhelpwithinstallation.
LEGEND
Positive
Negative
Optional
Fuse
10A
16 AWG
start
run
accessory
off
Start Key Switch
2A
Optional
Remote LED
Auxiliary Battery Priority
Optional Connection
See Wire Size and Fuse Rating Chart for
connections of Terminals A and B.
NOTE: To determine wire sizes and fuse
ratings for all other wires illustrated
please visit the Circuit Wizard at
circuitwizard.bluesea.com
2A
16 AWG
16 AWG
Auxiliary
Battery
Start
Solenoid
Start
Battery
850 CCA* Maximum
* Cold Cranking Amperes
Dimension Drawings
Wire Size and Fuse Ratings
*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
Wire Size and Fuse Rating Chart (Metric)
Charging Amps Minimum Wire Size* Fuse Rating
≤50 10 mm
²
75-80A
≤70 16 mm
²
80-90A
≤90 25 mm
²
125-130A
≤110 35 mm
²
150A
≤120 50 mm
²
150-175A
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
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Blue Sea Systems 7611 User manual

Blue Sea Systems
Brand
Blue Sea Systems
Model
7611
Type
User manual
This manual is also suitable for

Blue Sea Systems 7611 is an Automatic Charging Relay (ACR) with Auxiliary Battery Priority designed to improve battery charging and management in marine electrical systems. It automatically combines batteries during charging and isolates them during discharging, ensuring optimal charging for both starting and house batteries.

Key features of the 7611 ACR include:

  • High continuous rating of 120A to support high output alternators
  • Auxiliary Battery Priority connection that allows the alternator to charge the auxiliary battery longer, extending the use of auxiliary loads when the engine is running
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