Blue Sea Systems 7372 120/240V AC Main - Manual

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
Circuit Breakers:
50 amp Triple Pole AC Magnetic Breakers
80V DC/277V AC Maximum
Amperage Rating: 50 amp service
Voltage Rating:
120/240 Volts AC
Panels are rated for these voltages and are so
marked in order to comply with ABYC standards.
Inches
Millimeters
Panel Depth: 2 1/2 63.5
Overall Dimensions:5 1/4 x 3 3/4 133.4 x 95.3
Mounting Centers: 4 7/16 x 2 15/16 112.7 x 74.6
The Purpose of a Panel
There are six purposes of a marine electrical panel:
l Power distribution
l Circuit (wire) protection
l Circuit ON/OFF switching
l Reverse Polarity Indication
l Metering of voltage and amperage (In panels with meters)
l Condition Indication (circuit energized)
Applicable Standards
l American Boat and Yacht Council (ABYC) Standards and
recommended Practices for Small Crafts sections: E-8, Alternating
Current Electrical Systems on Boats.
l United States Coast Guard Code of Federal Regulations 33, Part
183, Subpart I, Electrical Systems on Boats.
Marine Electrical Products
AC Main Panel
PN 7372
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 feed and output wires
Install the feed wires from the AC source. Install the output wires. Refer
to the wire sizing chart to select the correct wire size. Connect the
black AC hot, red AC hot, white AC neutral and green AC safety ground
as shown in the illustration. The circuit breaker must have a rating less
than the allowable amperage of the wire, yet greater than the circuit's
continuous current.
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.
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 fuse or circuit breaker must be installed within 10 feet of the
shore power inlet. The measurement is made along the conductors.
Wire sizing chart
Use the wire sizing chart below to determine the minimum branch and
feed circuit wire sizes.
Installation
Outside
Engine Spaces
25.0
35.0
45.0
60.0
120.0
160.0
210.0
80.0
Inside
Engine Spaces
21.3
29.8
38.3
51.0
102.0
136.0
178.5
68.0
Allowable Amperage of Conductors
For wire with 105°C insulation rating
and no more then 2 conductors are bundled.
Not suitable for sizing flexible shore power cords.
Wire Size
(AWG)
16
14
12
10
6
4
2
8
Note:
Document 6637 Rev.C
]
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.
Blue Sea Systems Inc.
425 Sequoia Drive
Bellingham, WA 98226 USA Phone (360) 738-8230
Fax (360) 734-4195
@ E-mail conduct bluesea.com
www.bluesea.com
WARNING WARNING