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Marine Electrical Products

AC Main Power Distribution Panel

PN 8618 / PN 8619  AC Main + 3 Position

PN 8620 / PN 8621  AC Main + 8 Position

Panel Speci

fi

 cations

 

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

Bellingham, WA  98226  USA 

E-mail [email protected]

    

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 satis

fi

 ed 

may be returned for a refund or replacement at any time. Reference Blue 
Sea Systems’ Digital Meter installation manual for speci

fi

 c 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 

fl

 ammable 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 

fl

 exible shore power cords.

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