User Manual

ManualsBrandsBlue Sea Systems ManualsControl panel8509 AC Main + 3 Positions [European]

Installation (continued)

4. Install feed circuit wires

Install the feed wires from the shore power inlet or other AC source,

referring to the wire sizing chart to select the correct wire size. Connect

the black AC hot, white AC neutral and green AC safety ground as

shown in the illustration.

If the feed wires are from the shore power inlet or the electrical

attachment point of a permanently installed shore power cord and the

inlet or attachment point is more then 10 feet from this panel, an

additional fuses or circuit breakers must be installed within 10 feet of

the shore power inlet. The measurement is made along the

conductors.

5. Installation of Backlight System

The backlight board is a DC device. When installing it in an AC panel

both wire leads must be connected to an appropriate DC source and

ground.

Connect the yellow negative wire to a DC ground. Connect the red

positive wire to any DC positive supply, usually a switch that controls

the vessel’s other nighttime illumination.

6. Apply branch circuit labels and mount panel

Remove the blank labels installed in the panel before installing your

branch circuit labels. Apply a label for each of the branch circuits from

the 30 basic labels provided. If the appropriate label is not included,

individual labels are available from Blue Sea Systems for speciﬁ c

applications. Refer to the label order form for a complete listing of

individual labels.

Fasten the panel to the mounting surface using the panel mounting

screws supplied with the panel.

7. Testing

@ 

Connect the vessel’s shore power and verify the Reverse Polarity

light is not illuminated. If the red Reverse Polarity light is on then

either the hot and ground or the hot and neutral wires have been

crossed. Starting at the panel, trace the connections back as far

as necessary to locate the error.

@ Using a multimeter where the power source is connected to the

panel verify:

PN 8074 / PN 3074 / PN 8409 / PN 3409 - 120 Volt AC

a. 120 volts between hot and neutral

(nominal, this may vary depending on source voltage)

b. 120 volts between hot and ground.

c. 0 volts between neutral and ground.

PN 8174 / PN 3174 / PN 8509 / PN 3509 - 230 Volt AC

a. 230 volts between hot and neutral

(nominal, this may vary depending on source voltage)

b. 230 volts between hot and ground.

c. 0 volts between neutral and ground.

@ Turn on each branch circuit to verify power to each circuit.

Optional Branch LED’s

This Panel is supplied with LED’s pre-installed in all optional branch

positions. For future expansion of the panel remove the hot leg of the

LED from the AC Neutral Bus and connect it to the Load side of the

branch circuit breaker.

Note

All Blue Sea Systems’ electrical distribution panels are furnished with

15 amp or 8 amp circuit breakers for branch circuits. 15 amp circuit

breakers are used in all 120 volt panels and 8 amp circuit breakers are

used in all 230 volt panels. These ratings were selected to minimize

the need for removing the panel’s circuit breakers and reinstalling

different size circuit breakers. It is very rare to have more than this

amount of current ﬂ owing in any one circuit. Therefore, these circuit

breakers will satisfy the vast majority of marine circuit protection

situations.

The Purpose of a Panel

There are six purposes of a marine electrical panel:

• Power distribution

• Circuit (wire) protection

• Circuit ON/OFF switching

• Reverse Polarity Indication

• Metering of voltage and amperage (In panels with meters)

• Condition Indication (circuit energized)

Applicable Standards

• American Boat and Yacht council

Standards and recommended Practices for Small Crafts sections:

E-8, Alternating Current Electrical Systems on Boats.

• United States Coast Guard Code of Federal Regulations 33, Part

183, Subpart I, Electrical Systems on Boats.