WARNING
Marine Electrical Products
AC Rotary Switch Panel
2 Positions + OFF, 3 Pole
PN 8363
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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 switch front or back is to be exposed to water it must be
protected with a waterproof shield.
The switch must not be installed in explosive environments such as
gasoline engine rooms or battery compartments as the switches
are not ignition proof.
The vessel’s shore power cord must be disconnected form shoreside
power before installing this electrical switch.
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.
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Features
• Switches 2 - 120/240 V AC Sources
• Compact solution when circuit protection is provided elsewhere
• Allows connecting one of two different AC sources to one circuit
• Heavy duty industrial rated switches
• Intuitive function - One handed operation
• Green power available LED indicators
• Red reverse polarity LED indicators
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• UL listed switches
Panel Specifications
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If an AC Generator is installed aboard it must be stopped and rendered
inoperable before the switch is installed.
Verify that no other AC or DC source is connected to the vessel’s
wiring before the switch is installed.
Voltage Rating:
Panels are rated for 120 volts AC
Amperage Rating: 65 amp maximum service
Panel Material:
Primary Finish:
0.125” 5052-H32 Aluminum Alloy
Chemical Treatment per Mil Spec C-5541
Final Panel Finish: Graphite color 2 part textured Polyurethane
Maximum Wire Size:
Minimum Wire Size:
Terminal Recommended Torque:
6 AWG
12 AWG
40 lb-in.
Guarantee
Any Blue Sea Systems product with which a customer is not satisfied
may be returned for a refund or replacement at any time.
Inches
Millimeters
Overall Dimensions:
Mounting Centers:
Mounting Depth:
5-1/4 x 3-3/4
4-7/16 x 2-15/16 112.71 x 74.61
3-13/46 96.84
133.35 x 95.25
Blue Sea Systems Inc.
425 Sequoia Drive
Phone (360) 738-8230
Fax (360) 734-4195
Bellingham, WA 98226 USA
E-mail conduct@bluesea.com
Document 6632 Rev.B
Installation
The switch provides switching, but does not provide circuit protection.
It is not a substitute for a main circuit breaker.
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.
Wire sizing chart
Use the wire sizing chart below to determine the minimum branch and
feed circuit wire sizes.
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 switch.
2. Select mounting location and cut opening
Select a mounting location which is protected from water on the front
and back of the switch and is not in an area where flammable vapors
from propane, gas or lead acid batteries accumulate. AC rotary
switches 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 source 1, source 2 and output wires
Install the feed wires from AC Shore Power and AC Generator. Install
the output wires. Refer to the wire sizing chart to select the minimum
wire size. Connect wires as shown in the illustration. To avoid excess
wire temperatures when cooling may be limited, we recommend using
at least 12 gauge wire for 30A and 8 gauge wire for 50A.
4. Testing Connections
It is very important that the wiring be connected according to the
diagram. The line and neutral from each source must be paired
together and not connected such that the switch selects line from one
source and neutral from another. Verify the connections and see that
each connection is securely tightened, including the terminals for the
jumpers installed on the switch where no wires are attached.
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.
It is possible to verify the connections using an ohmmeter before power
is applied. These procedures take a little time, but are recommended,
especially if some elements of a previous installation might not have
been properly labeled or followed the expected color codes.
A double pole circuit breaker must be installed within 10 feet of the
shore power inlet, ahead of this switch. The measurement is made
along the conductors.
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Installation (continued)
DOUBLE OR TRIPLE POLE CIRCUIT
BREAKER REQUIRED WITHIN TEN FEET
OF SHORE INLET BETWEEN AC SOURCE
SELECTOR SWITCH AND SHORE POWER
FROM AC
LINE 2
FROM AC
LINE 1
FROM AC
SHORE
NEUTRAL
FROM AC
NEUTRAL
GENSET
FROM AC
LINE 1
FROM AC
LINE 2
11
9
10
FROM AC
LINE 1
FROM AC
NEUTRAL
FROM AC
LINE 2
BACK VIEW
Wiring Diagram
AC Source Selector Panel
PN 8363 Shown
Panel Template
AC Source Selector Panel
PN 8363
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