Victron energy Orion-Tr Manuel page 12

Only an ignition switch
Figure 4: Engine Detection Override connection diagram
4.6 Cable and fuse recommendations
Figure 5: Cable and fuse recommendations
Voltage rating
(input or output)
12V
24V
10
External battery
Protection Fuse
60A
30A
BMS
Minimum cable gauge
1m 2m
2
10mm 10mm
2 2
6mm 6mm
5m
2 2
16mm
2
10mm