Raymarine i60 - In-Line Fuse and Thermal Breaker Ratings; Seatalkng System Loading; Power Distribution - Seatalkng

In-linefuseandthermalbreaker
ratings
TheSeaT alkng®network’spowersupplyrequiresan
in-linefuseorthermalbreakertobetted.
In-linefuseratingThermalbreakerrating
5A
3A(ifonlyconnectingone
device)
Note:Thesuitablefuseratingforthethermal
breakerisdependentonthenumberofdevicesyou
areconnecting.Ifindoubtconsultanauthorized
Raymarinedealer.
SeaTalkng®systemloading
Themaximumloading/LENforaSeaT alkng®
systemdependsonthelengthofthebackbone.
LoadingtypeBackbonelengthTotalLEN
Unbalanced
20m(66ft)
40
Unbalanced
40m(131ft)
20
Unbalanced
60m(197ft)
14
Balanced
60m(197ft)or
less
100
Balanced
80m(262ft)
84
Balanced
100m(328ft)
60
Balanced
120m(394ft)
50
Balanced140mto160m
(459ftto525ft)
40
Balanced180mto200m
(591ftto656ft)
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Powerdistribution—SeaTalkng®
Recommendationsandbestpractice.
•OnlyuseapprovedSeaT alkng®powercables.Do
NOTuseapowercabledesignedfor,orsupplied
with,adifferentproduct.
•Seebelowformoreinformationonimplementation
forsomecommonpowerdistributionscenarios.
Important:Whenplanningandwiring,takeinto
considerationotherproductsinyoursystem,some
ofwhich(e.g.sonarmodules)mayplacelarge
powerdemandpeaksonthevessel’selectrical
system.
Note:Theinformationprovidedbelowisfor
guidanceonly,tohelpprotectyourproduct.It
coverscommonvesselpowerarrangements,but
doesNOTcovereveryscenario.Ifyouareunsure
howtoprovidethecorrectlevelofprotection,
pleaseconsultanauthorizedRaymarinedealeror
asuitablyqualiedprofessionalmarineelectrician.
Implementation—directconnectiontobattery
•SeaTalkng®powercablesmaybeconnected
directlytothevessel'sbattery,viaasuitablyrated
fuseorbreaker.
•YouMUSTtasuitablyratedfuseorbreaker
betweentheredwireandthebattery’spositive
terminal.
•Refertotheinlinefuseratingsprovidedinthe
product’sdocumentation.
•Ifyouneedtoextendthelengthofthepower
cable,ensureyouusesuitablyratedcableand
thatsufcientpower(12Vdc)isavailableatthe
SeaTalkng®backbone’spowerconnection.
A
BatteryconnectionscenarioA:suitableforavesselwith
acommonRFgroundpoint.Inthisscenario,ifyour
product’spowercableissuppliedwithaseparatedrain
wirethenitshouldbeconnectedtothevessel’scommon
groundpoint.
B
BatteryconnectionscenarioB:suitableforavessel
withoutacommongroundingpoint.Inthiscase,ifyour
product’spowercableissuppliedwithaseparatedrain
wirethenitshouldbeconnecteddirectlytothebattery’s
negativeterminal.
Implementation—connectiontodistribution
panel
•Alternatively,theSeaT alkng®powercablemaybe
connectedtoasuitablebreakerorswitchonthe
vessel'sdistributionpanelorfactory-ttedpower
distributionpoint.
•Thedistributionpointshouldbefedfrom
thevessel’sprimarypowersourceby8AWG
(8.36mm
2
)cable.
•Ideally,allequipmentshouldbewiredtoindividual
suitably-ratedthermalbreakersorfuses,with
appropriatecircuitprotection.Wherethisisnot
possibleandmorethan1itemofequipment
sharesabreaker,useindividualin-linefuses
foreachpowercircuittoprovidethenecessary
protection.
•Inallcases,observetherecommended
breaker/fuseratingsprovidedintheproduct’s
documentation.
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