Raymarine G-Series system Installation & Commissioning Instructions page 35

Circuit protection
GPM400 processor
All GPM400 processors must be switched via a single breaker.
Number
of Supply
GPM400 voltage
units
1 12 V
24 V
2 12 V
24 V
3 12 V
24 V
4 12 V
24 V
General circuit protection
The following loads and protection ratings apply to G-Series dis-
plays and ancillary equipment:
Equipment
G190 marine display
G170 marine display
Thermal
Fuse
breaker
(Individual)
(Overall)
10 A 10 A
5 A 5 A
20 A 10 A
10 A 5 A
25 A 10 A
15 A 5 A
35 A 10 A
20 A 5 A
Supply Thermal
Fuse
voltage breaker
12 V 8 A 12 A
24 V 4 A 6 A
12 V 8 A 12 A
24 V 4 A 6 A
Equipment
GVM400 Video Module
For other ancillary equipment, refer to the separate installation instructions for
circuit loading and protection information.
Power cables
• Cable must be of a suitable gauge for the circuit load.
• Each unit should have its own dedicated power cable wired
back to the distribution panel.
• All GPM400 processors should be connected to the same
breaker.
• Power cable must include a separate screen wire.
35
Supply Thermal
Fuse
voltage breaker
12 V 1.2 A 2 A
24 V 1 A 1 A
Chapter 4: Cables and connections