Blue Sea Systems 8053 - Manual

Marine Electrical Products

DC Power Distribution Panel

PN 8053 6 Position Water Resistant

PN 8054 3 Position Water Resistant

Panel Speci

fi

cations

Material:

0.100” 5052-H32 Aluminum Alloy

Primary Finish:

Chemical Treatment per Mil Spec C-5541C

Final Panel Finish: Graphite color 2 part textured Polyurethane
Fuse Holder:

Accepts commonly available AGC (fast acting) and
MDL (slow blow) 1-1/4” x 1/4” glass fuses.

Fuses:

15 Ampere AGC (fast acting) fuses installed.

Amperage Rating: Switches and Fuse Holders,

20 amperes maximum for 12 volt system

15 amperes maximum for 24 volt system

Cumulative Rating: 45 Amperes
Voltage Rating:

Panels are rated for 12 or 24 volts DC.

Circuit Indicator:

LED embedded in switch, rated 100,000 hour 1/2 life

PN

Inches

Millimeters

Overall Dimensions: 8053 5-1/4 x 7-1/2

133.40 x 190.50

8054 5-1/4 x 3-3/4

133.40 x 95.30

Mounting Centers: 8053 4-7/16 x 6-11/16 112.30 x 169.40

8054 4-7/16 x 2-15/16 112.30 x 74.20

Water Resistant:

Will withstand the water exposures normally
encountered in above deck applications: Salt spray,
rain, hose washdowns, momentary immersions.

The Purpose of a Panel

There are

fi

ve purposes of a marine electrical panel:

• Power distribution
• Circuit (wire) protection
• Circuit ON/OFF switching
• Metering of voltage and amperage (In panels with meters)
• Condition Indication (circuit energized)

Blue Sea Systems Inc.

Phone (360) 738-8230

425 Sequoia Drive

Fax (360) 734-4195

Bellingham, WA 98226 USA

E-mail [email protected]

www.bluesea.com

Document 9709 Rev.J

WARNING

@

It is not possible within the scope of these instructions to fully acquaint

the installer with all the knowledge of electrical systems that may be
necessary to correctly install this product. If the installer is not

knowledgeable in electrical systems we recommend that an electrical
professional be retained to make the installation.

@

If the panel front is to be exposed to water it must be properly sealed to

the instrument panel surface. The included gasket must be in place and
the panel screwed down tight.

@

The panels must not be installed in explosive environments such as gas

engine rooms or battery compartments as the switches are not ignition
proof.

@

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

Any Blue Sea Systems product with which a customer is not satis

fi

ed

may be returned for a refund or replacement at any time.

Useful Reference Books

Calder, Nigel, 1996:

Boatowner’s Mechanical and Electrical Manual

,

2nd edition, Blue Ridge Summit, PA: TAB Books, Inc.
Wing, Charlie, 1993:

Boatowner’s Illustrated Handbook of Wiring

,

Blue Ridge Summit, PA: TAB Books, Inc.

Related Products from Blue Sea Systems

PanelBack Insulating Covers
High Amperage Fuses and Circuit Breakers for positive feed wires
High Amperage Battery Switches
Terminal Blocks and Common Bus Connectors
AC Distribution Panels
DC Distribution Panels
AC and DC Voltmeters and Ammeters

1. Calculate the maximum sustained amperage of the circuit. Measure

the length of the circuit from the power source to the load and back.

2. Decide whether the circuit runs in an

engine space

or

non engine

space

. Engine spaces are assumed to be at 50 degrees C, non engine

spaces are assumed to be at 30 degrees C.

3. Multiply the maximum current times the length of the circuit to calculate

Famps

(Feet x amps).

4. Base the wire on either the 3% or 10%

voltage drop

. In general, items

which affect the safe operation of the boat and its passengers (running

lights, bilge blowers, electronics and distribution panel supply circuits)

use 3%; all other loads use 10% (cabin lights, bait pumps).

5. Starting in the column which has the right

voltage

and

voltage drop

shown at the top, run down the list of numbers until arriving at a value

which is greater than the calculated

Famps

. Move left to the

Ampacity

column to verify that the total amperage of the circuit does not exceed

the maximum allowable amperage of the wire size for that row. If it

does, move down until the wire ampacity exceeds the circuit

amperage. Finally, move left to the

wire size

column to select the wire

size.

Examples

a.

A 12 volt system at 10% drop with a 40’ circuit x 45 amps = 1800

Famps. A wire size of 8 is required.

b.

A 24 volt system at 3% drop with a 10’ circuit x 100 amps = 1000

Famps. A wire size of 6 is required.

Note: This chart assumes wire with 105°C insulation rating and AWG wire sizes.

*Metric wire sizes may be used if of equivalent circular mil area.

Wire Sizing Chart