Blue Opal/Electrics: Difference between revisions

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=== Battery banks ===
=== Battery banks ===
House bank - 2x 105 Ah SLA. Effective 100 Ah.
House bank - 2x 105 Ah SLA. Effective 100 Ah.
Starter - 1x 110 Ah SLA. Effective 50 Ah.
Starter - 1x 80 Ah SLA. Effective 40 Ah.
 
=== Alternator ===
BV PSH 80A, Hitachi saddle mount. Sourced from Myles Balfe.  V-belt sheave.
[[File:Img 2122-768x1024.jpg|none|thumb|Part number is 985.001.080.200.]]
[[File:Alternator specifications for Blue Opal.jpg|none|thumb]]


=== Terminal and driver sizes ===
=== Terminal and driver sizes ===
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|Terminal
|Terminal
|10mm
|10mm
|8mm
|5mm
|-
|-
|
|
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|Terminal
|Terminal
|10mm
|10mm
|8mm
|-
|
|Negative bus
|Terminal
|14mm
|8mm
|8mm
|}
|}
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Charge and Distribution fuses are MIDI style with spare, Blue Sea 7720.
Charge and Distribution fuses are MIDI style with spare, Blue Sea 7720.


Solar charger fuse is inline automotive.
Solar charger fuse is inline automotive, 5A to the local house bus positive.


{{#mermaid:graph TD;
Solar feed is via a Bulgin Buccaneer connector that terminates to Anderson PowerPole, and solar panel has MC4 <-> MC4 <-> APP.


subgraph "House Battery 1"
2026-08: Update needed - Solar is MPPT 75/15, connected to bus bars that connect to the lithium house. Bus bar connects to battery +ve, to charge line from DC-DC, and feeds MPPT and Cerbo GX. Negative bus connects to starter negative, house negative, MPPT and Cerbo negative. Renogy replaced with 100W folding panel from Amazon. Feed line for solar in cockpit using Bulgin Buccaneer 10-250V, fed via ferruled wires to MPPT.
   HB1_POS[+];
 
   HB1_NEG[-];
{{#mermaid:config.theme = neutral |
graph TD;
 
subgraph "Lithium 180Ah (2024)"
   HOUSE_BAT_NEG[-];
   HOUSE_BAT_POS[+];
end
end
subgraph "House Battery 2"
subgraph "Starter Battery (2023)"
   HB2_POS[+];
   STARTER_BAT_POS[+];
   HB2_NEG[-];
   STARTER_BAT_NEG[-];
end
end


subgraph "Starter Battery"
  SB_POS[+];
  SB_NEG[-];
end
subgraph "House Battery Switch"
subgraph "House Battery Switch"
   HOU_SW_POS[S];
   HOUSE_SW_POS[S];
   HOU_SW_NEG[L];
   HOUSE_SW_LOAD[L];
end
end
subgraph "Engine Battery Switch"
subgraph "Engine Battery Switch"
   ENG_SW_POS[S];
   ENG_SW_SOURCE[S];
   ENG_SW_NEG[L];
   ENG_SW_LOAD[L];
end
end
subgraph "Solar MPPT"
 
   SOL_POS[+];
subgraph "Alternator"
  SOL_NEG[-];
   ALT_GEN_POS[+];
end
end
subgraph "Mains Charger"
 
subgraph "BC1240 (Mains)"
  MAINS_CHG_ENG[Starter];
  MAINS_CHG_HOU["Unused(House)"];
   MAINS_CHG_NEG[-];
   MAINS_CHG_NEG[-];
  MAINS_CHG_HOU[House];
  MAINS_CHG_ENG[Starter];
end
end


subgraph "Sterling ProSplit-R"
subgraph "BB1240 (B2B 12V)"
   STERLING_STARTER[+];
   BB1240_STARTER[Source];
   STERLING_HOUSE[+];
   BB1240_NEG[Neg];
   STERLING_ALT[Alternator Feed];
   BB1240_HOU[Target];
  STERLING_NEG[-];
  STERLING_ON[Ignition Feed];
  STERLING_ALT --> STERLING_STARTER & STERLING_HOUSE;
end
end


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end
end


subgraph "Alternator"
subgraph "House Shunt"
   ALT_GEN_POS[+];
   HOUSE_SHUNT_POS[S]
   ALT_GEN_NEG[-];
  HOUSE_SHUNT_NEG[L]
  HOUSE_SHUNT_MON[Tap]
  HOUSE_SHUNT_POS --- HOUSE_SHUNT_NEG;
   HOUSE_SHUNT_POS --- HOUSE_SHUNT_MON --- HOUSE_SHUNT_NEG;
end
 
subgraph "House +ve Busbar"
  HOUSE_LBUS_POS[6x]
end
end
subgraph "House -ve Busbar"
subgraph "House Shunt"
   HOUSE_LBUS_NEG[6x]
   HOU_SHUNT_POS[I]
  HOU_SHUNT_NEG[O]
  HOU_SHUNT_MON[Tap]
  HOU_SHUNT_POS --> HOU_SHUNT_NEG;
  HOU_SHUNT_POS --- HOU_SHUNT_MON --- HOU_SHUNT_NEG;
end
end


subgraph "Solar"
  SOLAR_PANEL["100 Wp"]
  subgraph "MPPT75/15"
    SOLAR_IN_POS[S]
    SOLAR_IN_NEG[S]
    SOLAR_OUT_NEG[L]
    SOLAR_OUT_POS[L]
  end
  SOLAR_PANEL --- SOLAR_IN_POS;
  SOLAR_PANEL --- SOLAR_IN_NEG;
end
subgraph "Charge Fuse"
  STARTER_CHARGE_FUSE_SOURCE[S]
  STARTER_CHARGE_FUSE(70A)
  STARTER_CHARGE_FUSE_LOAD[L]
  STARTER_CHARGE_FUSE_SOURCE --- STARTER_CHARGE_FUSE --- STARTER_CHARGE_FUSE_LOAD;
end


BAT_NEG_BUS[Battery Negative Busbar];
BAT_NEG_BUS[Battery Negative Busbar];
BSA_STUD[BlueSea Ancillary]
BSA_STUD[BlueSea Ancillary]
HOU_POS_BUS[House Positive Bus]
HOUSE_POS_BUS[House Positive Bus]
HOU_NEG_BUS[House Negative Bus];
HOUSE_NEG_BUS[House Negative Bus];
HOU_DIST_FUSE(Distribution Fuse 150A)
HOUSE_DIST_FUSE(Distribution Fuse 150A)
HOU_CHARGE_FUSE(Charge Fuse 70A)
HOUSE_CHARGE_FUSE(Charge Fuse 70A)
STARTER_CHARGE_FUSE(Charge Fuse 70A)
SOLAR_CHARGE_FUSE(Charge Fuse 5A)
GROUND[Engine Block];
GROUND[Engine Block];
WLS_SW_POS([Windlass Switch]);
WLS_SW_POS([Windlass Switch]);
ALWAYS_ON_DIST[Always On Bus];
ALWAYS_ON_DIST[Always On Bus];
WINDLASS_NEG[Windlass];


HB1_POS === HB2_POS;
HOUSE_LBUS_POS ==== HOUSE_DIST_FUSE;
HB1_NEG === HB2_NEG;
HOUSE_LBUS_NEG === STARTER_BAT_NEG;
SOL_POS --- SOLAR_CHARGE_FUSE --> HB2_POS;
SOL_NEG --- HB2_NEG;
HB1_POS ==== HOU_DIST_FUSE;
HB1_NEG === SB_NEG;


HOU_SW_POS --- ALWAYS_ON_DIST;
HOUSE_SW_POS --- ALWAYS_ON_DIST;
STERLING_HOUSE ==> HOU_CHARGE_FUSE;
FRIDGE[Chillbox] --- BAT_NEG_BUS;
STERLING_STARTER ==> STARTER_CHARGE_FUSE;
STARTER_CHARGE_FUSE_LOAD --- STARTER_BAT_POS;
FRIDGE[Chillbox] --- HB1_NEG;
HOUSE_CHARGE_FUSE === HOUSE_LBUS_POS;
STARTER_CHARGE_FUSE --> SB_POS;
STARTER_BAT_POS == 25mm ==> ENG_SW_SOURCE;
HOU_CHARGE_FUSE --> HB1_POS;
STARTER_BAT_NEG === HOUSE_SHUNT_POS ;
SB_POS --- ENG_SW_POS;
ENG_SW_LOAD --- IGNITION;
SB_NEG === HOU_SHUNT_POS ;
ENG_SW_LOAD --- WLS_SW_POS;
ENG_SW_NEG --- IGNITION;
ALT_GEN_POS == 16mm ==> STARTER_CHARGE_FUSE_SOURCE;
ENG_SW_NEG --- WLS_SW_POS;
BB1240_NEG === STARTER_BAT_NEG;
ALT_GEN_POS === STERLING_ALT;
STARTER_CHARGE_FUSE_SOURCE == 10mm === BB1240_STARTER;
ALT_GEN_NEG === GROUND;
BB1240_HOU == 10mm ==> HOUSE_CHARGE_FUSE;
STERLING_NEG --- SB_NEG;
BAT_NEG_BUS === HOUSE_NEG_BUS;
BAT_NEG_BUS ==== HOU_NEG_BUS;
MAINS_CHG_NEG === BAT_NEG_BUS;
MAINS_CHG_NEG === BAT_NEG_BUS;
HOU_SW_NEG === HOU_POS_BUS;
HOUSE_SW_LOAD === HOUSE_POS_BUS;
HOU_DIST_FUSE --- HOU_SW_POS;
HOUSE_DIST_FUSE --- HOUSE_SW_POS;
HOU_SW_NEG === BSA_STUD;
HOUSE_SW_LOAD === BSA_STUD;
HOU_SHUNT_NEG === BAT_NEG_BUS;
HOUSE_SHUNT_NEG === BAT_NEG_BUS;
SB_NEG ==== GROUND;
STARTER_BAT_NEG ==== GROUND;
MAINS_CHG_HOU --> HOU_CHARGE_FUSE;
MAINS_CHG_ENG --- STARTER_CHARGE_FUSE_SOURCE;
MAINS_CHG_ENG -.- STARTER_CHARGE_FUSE;
SOLAR_OUT_POS --- HOUSE_LBUS_POS;
 
SOLAR_OUT_NEG --- HOUSE_LBUS_NEG;
WINDLASS_NEG --- STARTER_BAT_NEG;
HOUSE_LBUS_POS --- HOUSE_BAT_POS;
HOUSE_LBUS_NEG --- HOUSE_BAT_NEG;
classDef pos stroke:#f00
classDef pos stroke:#f00
classDef fuse stroke:#00f,fill:#5c5;
classDef fuse stroke:#00f,fill:#5c5;
class HB1_POS,HB2_POS,HOU_DIST_FUSE_POS,HOU_SHUNT_POS,SOL_POS,WLS_SW_POS,ENG_SW_POS,HOU_SW_POS pos;
class HOUSE_BAT_POS,HOUSE_DIST_FUSE_POS,WLS_SW_POS,ENG_SW_SOURCE,ENG_SW_LOAD,HOUSE_SW_POS pos;
class STARTER_CHARGE_FUSE_SOURCE,SOLAR_IN_POS,SOLAR_OUT_POS pos;
class ENG_CHG_FUSE_POS,STERLING_STARTER,STERLING_HOUSE,IGNITION pos;
class ENG_CHG_FUSE_POS,STERLING_STARTER,STERLING_HOUSE,IGNITION pos;
class MAINS_CHG_HOU,MAINS_CHG_ENG,SB_POS,ALT_GEN_POS pos;
class MAINS_CHG_HOU,MAINS_CHG_ENG,STARTER_BAT_POS,ALT_GEN_POS pos;
class HOU_DIST_FUSE,HOU_CHARGE_FUSE,STARTER_CHARGE_FUSE,SOLAR_CHARGE_FUSE fuse;
class HOUSE_SW_LOAD pos;
 
class STARTER_CHARGE_FUSE_LOAD pos;
|
class BB1240_HOU,BB1240_STARTER pos;
config.theme = neutral
class ALWAYS_ON_DIST,BSA_STUD,HOUSE_POS_BUS pos;
 
class HOUSE_DIST_FUSE,HOUSE_CHARGE_FUSE,STARTER_CHARGE_FUSE fuse;


}}
}}
Changes needed:
> Mains charger to starter battery is not fused, and should go through the `Starter Charge Fuse`; new 10mm sq needed


To-do: Replace direct-to-terminal with distribution bus bars. Starter negative terminal has more than 4 cables attached.


 
=== Blue Sea Ancillary===
=== House wiring in battery area===
This distribution setup is used for power distribution in the saloon; it's in the same physical area as the batteries. Distributor is a Blue Sea Systems ST compact 8-circuit (5046) with 10-32 stud, and 8-32 screw terminals.
This distribution setup is used for power distribution in the saloon; it's in the same physical area as the batteries. Fuses are automotive blade.


{{#mermaid:graph LR;
{{#mermaid:graph LR;
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HOU_SWITCH["House Battery Switch (Load)"];
HOU_SWITCH["House Battery Switch (Load)"];
BAT_NEG_BUS[Battery Negative Busbar];
BAT_NEG_BUS[Battery Negative Busbar];
HB1[House Battery 1 Negative];


subgraph "BlueSea Ancillary"
subgraph "BlueSea Ancillary"
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   BSA_USB(USB 5A);
   BSA_USB(USB 5A);
   BSA_BILGE(Bilge 5A);
   BSA_BILGE(Bilge 5A);
   BSA_STUD --- BSA_FRIDGE & BSA_AMPS & BSA_PP1 & BSA_PP2 & BSA_USB & BSA_BILGE;
  BSA_WPUMP(Water Pump 15A);
   BSA_STUD --- BSA_FRIDGE & BSA_AMPS & BSA_PP1 & BSA_PP2 & BSA_USB & BSA_BILGE & BSA_WPUMP;
end
end


HOU_SWITCH === BSA_STUD;
HOU_SWITCH === BSA_STUD;
BSA_FRIDGE === FRIDGE[Chillbox] === HB1;
BSA_FRIDGE === FRIDGE[Chillbox] === BAT_NEG_BUS;
BSA_AMPS --- AMMETER[Ammeter] --- BAT_NEG_BUS;
BSA_AMPS --- AMMETER[Ammeter] --- BAT_NEG_BUS;
BSA_PP1 --- PP1[Powerpole] --- BAT_NEG_BUS;
BSA_PP1 --- PP1[Powerpole] --- BAT_NEG_BUS;
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BSA_USB --- USB_SALOON[USB Sockets] --- BAT_NEG_BUS;
BSA_USB --- USB_SALOON[USB Sockets] --- BAT_NEG_BUS;
BSA_BILGE --- BILGE[Bilge Pump] --- BAT_NEG_BUS;
BSA_BILGE --- BILGE[Bilge Pump] --- BAT_NEG_BUS;
BSA_WPUMP --- WATER_PUMP[Fresh Water Pump] --- BAT_NEG_BUS;
classDef pos stroke:#f00
classDef pos stroke:#f00
classDef fuse stroke:#00f,fill:#5c5;
classDef fuse stroke:#00f,fill:#5c5;
class HOU_SWITCH pos;
class HOU_SWITCH pos;
class BSA_FRIDGE,BSA_AMPS,BSA_PP1,BSA_PP2,BSA_USB,BSA_BILGE fuse;
class BSA_FRIDGE,BSA_AMPS,BSA_PP1,BSA_PP2,BSA_USB,BSA_BILGE,BSA_WPUMP fuse;
|
|
config.theme = neutral
config.theme = neutral
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{{#mermaid:graph LR;
{{#mermaid:graph LR;
HOU_SWITCH["House Battery Switch (Supply)"];
HOU_SWITCH("House Battery Switch (Supply)");
BAT_NEG_BUS[Battery Negative Busbar];
BAT_NEG_BUS[Battery Negative Busbar];
CAB_NEG_BUS[Wiring Cabinet -ve Bus]
CAB_NEG_BUS[Wiring Cabinet -ve Bus]
Line 223: Line 250:


HOU_SWITCH === BSA_STUD;
HOU_SWITCH === BSA_STUD;
BSA_SALOON --- SALOON_SW[Companionway Switch] --- SALOON[Saloon Light] --- CAB_NEG_BUS;
BSA_SALOON --- SALOON_SW(Companionway Switch) --- SALOON[Saloon Light] --- CAB_NEG_BUS;
BSA_CHART --- CHART_SW[Chart Table Switch] --- CHART_LIGHT[Chart Table Light] --- CAB_NEG_BUS;
BSA_CHART --- CHART_SW(Chart Table Switch) --- CHART_LIGHT[Chart Table Light] --- CAB_NEG_BUS;
BSA_CABINET --- CABINET_SW[Wiring Cabinet Switch] --- CABINET_LIGHT[Cabinet Light] --- CAB_NEG_BUS;
BSA_CABINET --- CABINET_SW(Wiring Cabinet Switch) --- CABINET_LIGHT[Cabinet Light] --- CAB_NEG_BUS;
CAB_NEG_BUS === BAT_NEG_BUS;
CAB_NEG_BUS === BAT_NEG_BUS;
classDef pos stroke:#f00
classDef pos stroke:#f00
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=== Water pump ===
=== Water pump ===


Wired via a relay so that the switch by the chart table just activates the relay, and the pump gets power from 6mm^2^ direct from the battery compartment.
Wired via a relay so that the switch by the chart table just activates the relay, and the pump gets power from 6mm<sup>2</sup> direct from the battery compartment.


{{#mermaid:graph LR;
{{#mermaid:graph LR;
subgraph HOU_BAT[House Battery]
subgraph "Relay"
HOU_NEG["-"];
SWITCHING_TERMINAL[Switching];
HOU_POS["+"];
SWITCHED_TERMINAL[Switched];
end
end
HOU_BUS[House Bus];
subgraph "Pump"
PUMP_SW[Pump Switch];
PUMP_POS[+];
PUMP[Pump];
PUMP_NEG[-];
 
end
PUMP -- 2mm --> HOU_NEG;
BAT_NEG_BUS[Battery Negative Busbar];
HOU_POS -- 10mm --> HOU_BUS;
CAB_NEG_BUS[Wiring Cabinet -ve Bus]
HOU_BUS -- 2mm --> PUMP_SW;
PUMP_PANEL_SW(Panel Switch);
PUMP_SW -- 2mm --> PUMP;
BSA_BAT_PUMP(Blue Sea Ancillary);
PUMP_PANEL_SW --> SWITCHING_TERMINAL --> CAB_NEG_BUS;
BSA_BAT_PUMP --> SWITCHED_TERMINAL --> PUMP_POS;
PUMP_NEG --> BAT_NEG_BUS;
classDef pos stroke:#f00
classDef fuse stroke:#00f,fill:#5c5;
class BSA_BAT_PUMP fuse;
class PUMP_PANEL_SW pos;
|
|
config.theme = neutral
config.theme = neutral
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The relay is the same as the one for the engine starter, 12V 40A SPST with 30/85/86/87 terminals, normally open.
The relay is the same as the one for the engine starter, 12V 40A SPST with 30/85/86/87 terminals, normally open.
[[Category:Blue Opal]]

Latest revision as of 20:11, 25 August 2026

Battery banks

House bank - 2x 105 Ah SLA. Effective 100 Ah. Starter - 1x 80 Ah SLA. Effective 40 Ah.

Alternator

BV PSH 80A, Hitachi saddle mount. Sourced from Myles Balfe. V-belt sheave.

Part number is 985.001.080.200.

Terminal and driver sizes

Area Item Fixing Driver Stud
Battery Shunt Terminal 10mm 8mm
House Terminal 14mm 10mm
Starter Terminal 13/14mm 10mm
Blue Sea Fused Bus Terminal 10mm 5mm
MIDI fuses Terminal 10mm 8mm
Negative bus Terminal 14mm 8mm

Core power distribution and charging

This diagram is for the wiring in the starter and house battery bank compartments.

Charge and Distribution fuses are MIDI style with spare, Blue Sea 7720.

Solar charger fuse is inline automotive, 5A to the local house bus positive.

Solar feed is via a Bulgin Buccaneer connector that terminates to Anderson PowerPole, and solar panel has MC4 <-> MC4 <-> APP.

2026-08: Update needed - Solar is MPPT 75/15, connected to bus bars that connect to the lithium house. Bus bar connects to battery +ve, to charge line from DC-DC, and feeds MPPT and Cerbo GX. Negative bus connects to starter negative, house negative, MPPT and Cerbo negative. Renogy replaced with 100W folding panel from Amazon. Feed line for solar in cockpit using Bulgin Buccaneer 10-250V, fed via ferruled wires to MPPT.

To-do: Replace direct-to-terminal with distribution bus bars. Starter negative terminal has more than 4 cables attached.

Blue Sea Ancillary

This distribution setup is used for power distribution in the saloon; it's in the same physical area as the batteries. Distributor is a Blue Sea Systems ST compact 8-circuit (5046) with 10-32 stud, and 8-32 screw terminals.

Always on distribution

This powers low draw devices that should be powered without the house switch being engaged. Basically, lights. Located in the wiring cabinet above and behind the chart table. Wired to supply side so it's always got power, bar the local fuse blowing.

Water pump

Wired via a relay so that the switch by the chart table just activates the relay, and the pump gets power from 6mm2 direct from the battery compartment.


The relay is the same as the one for the engine starter, 12V 40A SPST with 30/85/86/87 terminals, normally open.

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