Power And Drive Cables - Raymarine EVOLUTION EV-1 Installation Instructions Manual

• Alternatively, the unit's power connection may be
connected to a suitable breaker or switch on the
vessel's power distribution panel, or factory-fitted
power distribution point.
• The distribution point should be fed from
the vessel's primary power source by 8AWG
(8.36mm 2 ) cable.
• Ideally, all equipment should be wired to individual
suitably-rated thermal breakers or fuses, with
appropriate circuit protection. Where this is not
possible and more than 1 item of equipment
shares a breaker, use individual in-line fuses
for each power circuit to provide the necessary
protection.
• In all cases, observe the recommended
breaker / fuse ratings provided in the product's
documentation.
Important:
Be aware that the suitable fuse rating for the
thermal breaker or fuse is dependent on the
number of devices you are connecting.
Grounding
Ensure that you observe the separate grounding
advice provided in the product's documentation.
More information
It is recommended that best practice is observed in
all vessel electrical installations, as detailed in the
following standards:
• BMEA Code of Practice for Electrical and
Electronic Installations in Boats
• NMEA 0400 Installation Standard
• ABYC E-11 AC & DC Electrical Systems on Boats
• ABYC A-31 Battery chargers and Inverters
• ABYC TE-4 Lightning Protection
Sharing a breaker
Where more than 1 piece of equipment shares a
breaker you must provide protection for the individual
circuits. E.g. by connecting an in-line fuse for each
power circuit.
1
2
Cables and connections
Positive (+) bar
Negative (-) bar
3
4
Where possible, connect individual items of
equipment to individual circuit breakers. Where this
is not possible, use individual in-line fuses to provide
the necessary protection.

Power and drive cables

Important electrical considerations when planning
cable runs and equipment location.
The amount of electrical current available to the
autopilot system components will be impacted by
the length and gauge of the cables used to connect
all the components. When determining the cable
required for the power and drive connections it is
necessary to consider the combined cable length
of both connections.
1. ACU (Actuator Control Unit)
2. Power supply / distribution panel
3. Drive unit
Power and drive cable selection
Supply
Drive voltage
Type 0.5 12 V
hydraulic
pump
• Type 1 12 V
drive
• CR pump
(ACU–300
only)
Type 2 drive 12 V
24 V
Circuit breaker
Fuse
Max.
length
(A+B) Cable size
0–7 m 2.5 mm 2
(0–23 ft) (14 AWG)
7–10 m
4 mm 2 (12 AWG)
(23–32.8 ft)
0–7 m 2.5 mm 2
(0–23 ft) (14 AWG)
7–10 m 4 mm 2 (12 AWG)
(23–32.8 ft)
0–5 m 6 mm 2 (10 AWG)
(0–16.4 ft)
5–7 m
10 mm 2 (8 AWG)
(16.4–23 ft)
0–3 m 4 mm 2 (12 AWG)
(0–9.8 ft)
3–5 m 6 mm 2 (10 AWG)
(9.8–16.4 ft)
5–10 m (16. 10 mm 2 (8 AWG)
4–32.8 ft)
31