Marine Electrical Prod
ucts
AC Main Power Distribution Panel
PN 8618 / PN 8619 AC Main + 3 Position
PN 8620 / PN 8621 AC Main + 8 Position
Panel Specifications
Material: 0.125” 5052-H32 Aluminum Alloy
Primary Finish: Chemical Treatment per Mil Spec C-5541C
Final Panel Finish: Graphite color 2 part textured Polyurethane
Amperage Rating: All components are sized for 100 Amps of
continuous current
Voltage Rating: See Panel Features
Meter: AC Digital Multimeter with Alarm PN 8247
PN Inches Millimeters
Overall Dimensions: 8618/8619 5-1/4 x 7-1/2 133.40 x 190.50
8620/8621 5-1/4 x 11-1/4 133.40 x 285.80
Mounting Centers: 8618/8619 4-7/16 x 6-11/16 112.70 x 169.90
8620/8621 4-7/16 x 10-7/16 112.70 x 265.10
Panel Features
PN 8618 / PN 8619 / PN 8620 / PN 8621
• PN 8247 AC Digital Multimeter with alarm
PN 8618 / PN 8620 - 120 Volts AC
• One double-pole 30 Ampere AC main rocker circuit breaker
• 15 Ampere rocker branch circuit breakers installed
PN 8619 / PN 8621 - 230 Volts AC
• One double-pole 16 Ampere AC main rocker circuit breaker
• 8 Ampere rocker branch circuit breakers installed
Applicable Standards
• American Boat and Yacht Council (ABYC) Standards and
Recommended Practices for Small Craft sections: E-1, E-3, E-9.
• United States Coast Guard 33 CFR Sub Part 1, Electrical Systems.
Blue Sea Systems Inc. Phone (360) 738-8230
425 Sequoia Drive Fax (360) 734-4195
www.bluesea.com
Document 6958 Rev.F
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 strongly recommend that an
electrical professional be retained to make the installation.
@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
gas engine rooms or battery compartments as the circuit breakers are
not ignition proof.
@The vessel’s shore power cord must be disconnected form shoreside
power before installing this electrical panel.
@If an inverter is installed on the vessel its power leads must be
disconnected at the battery before the panel installation. Be aware that
many inverters have a “sleep mode” in which their voltage potential
may not be detectable with measuring equipment.
@If an AC Generator is installed aboard it must be stopped and rendered
inoperable before the panel is installed.
@Verify that no other AC source is connected to the vessels’ wiring
before the panel is installed.
Guarantee
Any Blue Sea Systems product with which a customer is not satisfied
may be returned for a refund or replacement at any time. Reference Blue
Sea Systems’ Digital Meter installation manual for specific meter
warranty information.
Installation
1. Disconnect all AC and DC power
Disconnect all AC power originating on or off the vessel. This includes
inverters, generators, shore power attachments and any other device
capable of supplying AC power to the ship’s circuits.
Disconnect the main positive DC cable from all batteries to eliminate
the possibility of a short circuit and to disable the inverter while
installing the distribution panel.
2. Select mounting location and cut opening
If this panel is to serve as your main shore power disconnect circuit
breaker, select a location which is not more then 10 feet from the shore
power inlet or the electrical attachment point of a permanently installed
shore power cord as measured along the conductors of the feed wires.
If it is more then 10 feet additional fuses or circuit breakers must be
installed within 10 feet of the shore power inlet.
Select a mounting location which is protected from water on the panel
front and back and is not in an area where flammable vapors from
propane, gasoline or lead acid batteries accumulate. The circuit
breakers used in marine electrical panels are not ignition protected and
may ignite such vapors.
Using the panel template provided, make a cut out in the mounting
surface where the distribution panel is to be mounted. Do not yet
fasten the panel to the mounting surface.
3. Install branch circuit wires
Determine the proper wire size for each branch circuit using the wire
sizing chart. Verify that the standard circuit breakers installed in the
panel are correct for each branch circuit. Remove and replace any that
are incorrectly sized. The circuit breaker must have a rating less than
the allowable amperage of the wire, yet greater than the circuit’s
continuous current.
Connect each branch circuit hot (black) to the appropriate load
terminal. Connect each branch circuit neutral (white) to one of the
screws on the neutral bus. Connect each branch safety ground wire
(green) to one of the screws of the safety ground bus.
Do not confuse the neutral current carrying wires (sometimes called
ground) with the green normally non-current carrying wires (sometimes
called grounding). These two wires must be connected only at the
source of power, nowhere else.
Wire sizing chart
Use the wire sizing chart below to determine the proper branch
and feed circuit wire sizes.
Allowable Amperage of Conductors
Note: This chart assumes wire with 105°C insulation rating
and no more then 2 conductors are bundled.
Not suitable for sizing flexible shore power cords.
