Blue Sea Systems 7372 120/240V AC Main - Manual (Page 2)

Related Products from Blue Sea Systems
l High Amperage Fuses and Circuit Breakers for positive feed wires
l High Amperage Battery Switches
l Terminal Blocks and Common Bus Connectors
l AC Distribution Panels
l DC Distribution Panels
l AC and DC Digital and Analog Voltmeters and Ammeters
Useful Reference Books
Calder, Nigel, 1996: Boatowner's Mechanical and Electrical Manual, 2nd
edition, Blue Ridge Summit, PA: TAB Books, Inc.
Wing, Charlie, 1993: Boatowner's Illustrated Handbook of Wiring, Blue
Ridge Summit, PA: TAB Books, Inc.
4. Installation of Backlight System
5. Apply circuit labels and mount panel
Apply a label for each source from the 10 basic labels provided. If the
appropriate label is not included, Individual labels are available from
Blue Sea Systems for specific 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.
6. Testing
]
Connect the shore power cable to the boat AC power inlet. Do not
connect the shore power cable to the shore power pedestal. Instead
run the shore power cable such that the shore power plug is next to
the AC panel. With an Ohmmeter verify that the pins of the shore
power plug are connected to the appropriate terminals of the panel.
Refer to ABYC E-11 Figure 13 or 14 or NEC / NEMA documents for
the standard pin arrangements for your plug.
]
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 7232 - 120 Volt AC
a.
120 volts between each hot and neutral
(nominal, this may vary depending on source voltage)
b. 120 volts between each hot and ground.
c. 240 volts between the two hots, L1 and L2.
c. 0 volts between neutral and ground.
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. Do not confuse the red DC
positive with the red AC hot.
Installation
(continued)
TO POWER
DISTRIBUTION
AC HOT L2
TO POWER
DISTRIBUTION
AC HOT L1
Wiring Diagram
AC Main Power
Distribution Panel
(Part Number 7372 shown for reference)
FROM POWER
DISTRIBUTION
SAFETY GROUND
FROM AC
NEUTRAL
SOURCE
L1
50A
N
50A
L2
50A
TO DC
NEGATIVE
FROM DC
POSITIVE
FUSE
1.0 TO 2.0A
FROM POWER
DISTRIBUTION
AC NEUTRAL
LOAD LINE
120/240
VOLT AC
SOURCE
FROM
AC HOT L2
SOURCE
FROM
AC HOT L1
SOURCE
TO AC
SAFETY
GROUND
SOURCE
ADDITIONAL BREAKER
REQUIRED IF GREATER
THEN 10 FEET
AC NEUTRAL
BUS
AC SAFETY
GROUND BUS
DC BACKLIGHT
BOARD