Power Connection; In-Line Fuse And Thermal Breaker Ratings; Power Cable Extension; Power Distribution - Raymarine Quantum Radome Installation Instructions Manual

4.4 Power connection

Note: A Y-adapter cable (part number A80308) is
available for existing installations that already use
a combined power/data cable from a Digital or HD
Color Radome. The Y-adapter splits the existing
combined cable into the separate data and power
connectors used by the scanner.
Item Description
1 Power cable.
2 Red cable (positive)
3 Connection to 12V /
24V power supply.
4 Black cable (negative)
In-line fuse and thermal breaker
ratings
The following in-line fuse and thermal breaker ratings
apply to your product:
In-line fuse rating
5A
Note:
• The suitable fuse rating for the thermal breaker
is dependent on the number of devices you are
connecting. If in doubt consult an authorized
Raymarine dealer.
• Your product's power cable may have a fitted
in-line fuse, if not then you must add an in-line
fuse / breaker to the positive wire of your
products power connection.
Warning: Grounding not
required
This product is fully insulated and does
NOT require separate grounding.

Power cable extension

The product is supplied with a power cable, which
can be extended if required.
• The power cable for each unit in your system
should be run as a separate, single length of
2-wire cable from the unit to the vessel's battery or
distribution panel.
30
Connects to:
Product's power
connector.
Power supply's positive
terminal.
Power supply.
Power supply's negative
terminal.
Thermal breaker rating
3 A (if only connecting one
device)
• Raymarine recommends a minimum wire gauge
of 14AWG (2.08mm
extension.
• For all lengths of extension to the power cable,
ensure there is a continuous minimum voltage
at the product's power connector of 10.8V with a
fully flat battery at 11V.
Important: Be aware that some products in
your system (such as sonar modules) can create
voltage peaks at certain times, which may impact
the voltage available to other products during the
peaks.

Power distribution

Recommendations and best practice.
• The product is supplied with a power cable. Only
use the power cable supplied with the product. Do
NOT use a power cable designed for, or supplied
with, a different product.
• Refer to the Power connection section for more
information on how to identify the wires in your
product's power cable, and where to connect them.
• See below for more information on implementation
for some common power distribution scenarios.
Important: When planning and wiring, take into
consideration other products in your system, some
of which (e.g. sonar modules) may place large
power demand peaks on the vessel's electrical
system.
Note: The information provided below is for
guidance only, to help protect your product. It
covers common vessel power arrangements, but
does NOT cover every scenario. If you are unsure
how to provide the correct level of protection,
please consult an authorized Raymarine dealer or
a suitably qualified professional marine electrician.
Implementation — direct connection to battery
• The power cable supplied with your product may
be connected directly to the vessel's battery, via a
suitably rated fuse or breaker.
• The power cable supplied with your product may
NOT include a separate drain wire. If this is the
case, only the power cable's red and black wires
need to be connected.
• If the supplied power cable is NOT fitted with an
inline fuse, you MUST fit a suitably rated fuse or
breaker between the red wire and the battery's
positive terminal.
• Refer to the inline fuse ratings provided in the
product's documentation.
• If you need to extend the length of the power cable
supplied with your product, ensure you observe
the dedicated Power cable extensions advice
provided in the product's documentation.
2 ) for any length of cable