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Blue Sea Systems #8689 DC panel Battery Mngmnt Mini 2 Dual
Blue Sea 8689 DC Battery Management Panel
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Designed for twin engine configurations
Panel includes two 6011 battery switches
Provides 24 hour circuit protection for essential circuits - three x 15 Amp circuit breakers included
Provides main DC circuit protection in addition to high ampere load protection - 100 Amp main breaker included
Protects electronics from sags and spikes caused by engine cranking by separating start from house batteries
Allows emergency cross connect between isolated battery banks
Isolates the Engine circuit from the House circuit and simplifies battery switch operation
Addition of one or more Automatic Charging Relays (not included) automates charging all batteries
Includes a set of p/n 4218 - Square Format Labels and p/n 4140 - 24 Hour Round Labels
This panel can accept A-Frame (7400 and up) or C-Frame (7540 and up) flat rocker breakers and push button breakers (7050 and up). The main breaker that comes with this is the C-Frame type which have heaver duty terminals and are more suited to larger wires.
Dimensions 7.25" Wide x 7.25" High x 3.25" Deep
As the engine switch is set up can the switch be used with starboard engine only, port engine only and both engines. I can see nothing on the switch that selects between the two engines only engine 1 and 1&2 combo. Is there a position for engine 2? Thanks
Both of the switches are double pole switches.
The engine switch connects each battery to its respective engine, port battery to port engine, starboard battery to starboard engine, and an emergency combine position where both engines and both engine batteries are connected together.
The house switch is also a double pole switch. It connects the house battery to the house loads. When it is in the emergency combine position it connects the house battery to one of the engine batteries.
When both switches are in emergency combine mode all the batteries are connected to each other.
The panel is designed to be used in conjunction with a pair of 7610 ACR's which automatically combine when any battery is being charged and charge the entire set. For more details refer to the wiring diagram.
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Answer provided by:
Peter Kennedy (10/29/2018)
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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to
To get the full functionality of this panel requires one or more
7610 ACR automatic battery combiners
The battery switches in this panel take
with a 3/8" diameter hole
For the switches in this panel to meet their full ratings you have to use
4/0 awg battery cable
, this is because the heavy cable can remove any heat generated in the switch more efficiently than smaller diameter cable
Ancor Marine Tinned Battery Cable 2/0 awg Red - per Foot
Minimum order 5 ft.
Blue Sea 7406 Flat Rocker Circuit Breaker 30 Amps
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