Power Connection - Raymarine A50 Installation Instructions Manual

3.3

Power connection

SONAR
Chart plotter / Fishfinder
A-Series display
Red +ve
Black -ve
Black drainwire
Ship's ground
Grounding
WARNING: Grounding
This display is not intended for use on "positive"
ground boats. The power input cable drain wires
must be connected directly to the boats ground.
• Use a dedicated earthing plate (e.g. dynaplate) in contact with
the water.
22
• Ground cables may be routed to a common point (e.g. within the
switch panel. With a single (appropriately rated) copper braid
connecting to the earthing plate.
• Use flat tinned copper braid, 30 A rating (1/4 inch) or greater.
Equivalent stranded wire diameter 4mm or greater.
• Keep the length of the earth braid as short as possible.
PWR/NMEA
A-Series power cable
Cable
2 m (6.56 ft)
A50/A57/A70 Power
and NMEA Cable
For other cables and accessories refer to
Data
A-Series power cable extension
The following restriction applies to any extension to the power cable:
D11354-1
Length (max)
10m (32.8 ft)
Fuses & circuit protection
Equipment
A50, A50D, A57D, A70, A70D
Part No Notes
R62157 Supplied with A-Series unit.
Options and accessories on page 56.
Cable gauge (AWG)
14
Thermal
Fuse
breaker
10A 10A
A-Series display - Installation instructions