Fuses And Circuit Protection; Grounding - Raymarine SPX 10 Installation Instructions Manual

3.5 Fuses and circuit protection

Power supply circuit protection
The power supply must be connected using an
appropriately rated and fused switch or thermal breaker.
The drive type determines the rating of the breaker or
fuse required.
Supply
Drive unit voltage Fuse
0.5 l 12 V 15 A
hydraulic
pump
Type 1 12 or 24 V 25 A
(Rotary,
Linear or
Hydraulic)
Type 2 12 V 40 A
(Rotary,
Linear or 24 V 30 A
Hydraulic)
Type 3 ( 12 V or 24 V 40 A
Hydraulic
linear)
12 V 15 A
I/O
12 or 24 V 10 A
CR pump
(Solenoid)
Internal fuses
The course computer uses standard automotive blade
fuses. Spare fuses are located on underside of the
removable cover.
Cables and connections
1
OFF ON
FAULT FAULT
FLUXGATE
Thermal
2
over-
current
1. SeaTalk ng fuse. (Fuse power supply from course
circuit
computer to SeaTalk
breaker
2. SeaTalk fuse. (Fuse power supply from course
10 A
computer to connected SeaTalk devices).
3. Power fuse. (Fuse total power consumed by
system, including the drive unit.)
20 A
SeaTalk
SPX-10 2 A
30 A
SPX-30 3 A
30 A
SOX- 3 A
SOL
30 A
10 A
10 A
3
Raymarine
SLEEP
12V 24V
A B
RUDDER
CLUTCH
P OWER MOTOR
D11937-1
ng backbone.
ng SeaTalk Power
2 A 15 A
3 A 40 A
3 A 15 A

3.6 Grounding

These grounding requirements are applicable for
Raymarine equipment with a dedicated ground terminal.
• The ground terminal must be connected to a common
ground point.
• It is recommended that the common ground point is a
bonded ground, i.e. with the ground point connected
to battery negative, and situated as close as possible
to the battery negative terminal. If a bonded ground
system is not possible, a non-bonded RF ground may
be used.
Bonded ground system (preferred)
2 3
1
RF ground system (alternative)
2 3
1
1. Ground terminal. (This may also be labelled as
Ground, or Screen.)
2. Ground braid.
3. Bonded (preferred) or non-bonded RF ground.
4. Power supply or battery.
4
4
21