Function of the terminals
• B+ ALTERNATOR
- Connect to the B+ terminal of the alternator.
- Where a battery charger is installed then also connect the battery charger plus (+) to
this terminal.
Instead of 'B+' one of the following markings may be shown: B+51, 51, B+30, B, BAT or
30.
Normally the B+ terminal of the alternator is connected to that plus (+) terminal of the
starter relay where also the plus cable of the starter battery is connected.
Remove the connection from alternator B+ to starter relay.
• + BATTERY
Connect the cable to the plus (+) terminal of the respective battery.
• B –
Connect a cable from this terminal to the minus terminal (ground) of the ship's power sup-
ply system.
A wire cross-section of 2.5 mm
(AWG 14) is sufficient for this interconnection.
2
It is important that the minus terminals of all batteries are interconnected.
Also for a ship with a steel hull it is recommended to use cables for all minus connections
instead of using the ship's hull. That does not alter the fact that in most cases the minus
terminal is or even must be grounded at one (1) point (connected to the hull).
In cases where the ship's hull is used as a conductor this may result in corrosion. In addi-
tion there may occur some difference in the voltage at the minus terminals of the various
consumers, which may result in malfunction of electronic equipment.
12
9.0305
Diode splitter