Marine Electrical Products
Dual Battery Main Distribution Panel
One Selector Battery Switch
PN 8687/8691
Features
•Power distribution, switching, and circuit protection combined in one panel
•Configurable to suit specific needs of individual boat owners
•Familiar Selector Battery Switch:
•Two 15A thermal circuit breakers provide
•Each circuit contains circuit labels and LED indicator lights that provide circuit status
•Blank slots to accommodate additional circuit breakers or switches
Panel Specifications
Material: | 0.125” | ||
Primary Finish: | Chemical Treatment per Mil Spec | ||
Final Panel Finish: | Graphite color 2 part textured Polyurethane | ||
Maximum Voltage Rating: | 24V DC |
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House Amperage Rating: | 100A Max (on installed circuit) | ||
Switch Amperage Ratings: | Continuous: | ||
| Intermittent (5 min.): | ||
| Cranking (100 sec.): | ||
| Inrush (2.5 sec.): 8687,1500A, | ||
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| Inches | Millimeters |
Dimensions: | 8687 | 4.50 x 7.50 | 114.3 x 190.50 |
| 8691 | 5.25 x 8.00 | 133.35 x 203.20 |
Mounting Centers: | 8687 | 3.67 x 6.67 | 93.22 x 169.42 |
| 8691 | 4.42 x 7.17 | 112.27 x 182.12 |
Battery Switch Terminal Studs: | |||
Torque: | 140 |
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Blue Sea Systems Inc. |
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| Phone (360) |
425 Sequoia Drive |
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| Fax (360) |
Bellingham, WA 98226 USA |
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| www.bluesea.com |
Document 6344 Rev.B
Installation
1. Disconnect all DC power
To eliminate the possibility of a short circuit while installing the panel, disconnect the main positive cable from all batteries.
2. Select mounting location and cut opening
Select a mounting location that is protected from water on the panel front and back and is not in an area where flammable vapors from propane, gas or lead acid batteries accumulate. Using the panel template provided, make a cut out in the mounting surface where the panel is to be mounted. Do not fasten the panel to the mounting surface.
3. Install LED negative feed wire
Use a 16 AWG wire to connect the LED negative feed (Yellow) wires to a DC negative bus.
4. Electrical Connections
Battery cable terminals must be attached under battery switch stud nut and lock washer. The electrical connection illustration is general in nature and is not meant to be a guide for the wiring of any specific vessel. There is a wide range of wiring configurations possible.
Consult your marine electrical professional for the wiring system applicable to your boat.
Make appropriate adjustments to the wiring diagram to suit your specific installation and equipment. Fusing may be appropriate in several of the lines depending on the proximity of components, conductor sheathing, and the conductivity of the surrounding structure. Consult the Wire Sizing Chart to determine the appropriate wire sizes.
5. Apply Labels and Mount Panel
Apply a label to each of the circuits from the label sheet provided. Use the panel mounting screws supplied with the panel to secure the panel to the mounting surface. Additional labels are available from
Blue Sea Systems.
WARNING 
@If the installer is not knowledgeable about electrical systems, consult an electrical professional.
@If either the panel front or back is to be exposed to water it must be protected with a waterproof shield.
@The panels must not be installed in explosive environments such as gasoline engine rooms or battery compartments because the circuit breakers are not ignition protected.
@The main positive connection must be disconnected at the battery post to avoid the possibility of a short circuit during the installation of this distribution panel.
Guarantee
If at any time you are not satisfied with this product, you may return it for a refund or replacement.
Useful Reference Books
Calder, Nigel, 2005: Boatowner’s Mechanical and Electrical Manual,
3rd edition, Blue Ridge Summit, PA: TAB Books, Inc.
Wing, Charlie, 1993: Boatowner’s Illustrated Handbook of Wiring,
Blue Ridge Summit, PA: TAB Books, Inc.
Applicable Standards
•American Boat and Yacht Council (ABYC) Standards and Recommended Practices for Small Craft sections:
•United States Coast Guard 33 CFR Sub Part 1, Electrical Systems.
•National Fire Protection Agency (NFPA) 302
Related Products Available from Blue Sea Systems
Toggle World Circuit Breakers, e.g., 7200
Small Case Rockers, e.g., 7300, 7408 (flat), 7433 (slot reset) Large Case Rockers, e.g., 7450
CLB with Adapter, e.g., 7050/4111
Push Button Switches with Adapter, e.g., 8200
Toggle Switches with Adapter, e.g., 8204
Caution
Caution: ABYC Interrupt
In certain circumstances, main DC circuit breakers may have to break very high amperages. The ability of a circuit breaker to safely break high amperage is its Ampere Interrupt Capacity (AIC) rating. AIC is a function of a battery’s Cold Cranking Amperes (AIC) capacity. According to ABYC
DC voltage rating | CCA of all | Ampere Interrupt Capacity (AIC) | |
| connected |
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| batteries |
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| Main Circuit | Branch Circuit |
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| Breaker (Amperes) | Breaker(Amperes) |
12 Volt and 24 Volt | 650 or less | 1500 | 750 |
| 3000 | 750 | |
| over 1100 | 5000 | 2500 |
32 Volts | 1250 or less | 3000 | 1500 |
| over 1250 | 5000 | 2500 |
Blue Sea Systems Battery Management Panels contain thermal (push button reset) circuit breakers rated at 15A. These circuit breakers are suitable for
Installation of this panel in systems with battery banks of 660A or higher should include an additional fuse or circuit breaker of appropriate interrupt capacity in the line between the battery bank and the pushbutton circuit breakers to comply with ABYC