User manual

62 Maintenance
UM6C28C P0728920 Standard 11.00 April 2001 Emerson Energy Systems
Figure 22 – Battery connections inside the control and distribution panel
Partial view inside the
MFA150 control and
distribution panel
LVD contactor
(if provided)
CHG/DISCH GRD busbar
DISCH BAT busbar
CHG BAT busbar
Preferred locations for
the battery cables
(see note)
Shunt
This location is
normally reserved
for the BRR cable
connection
Note: Connection positions are optimal if maximum 1/0 AWG
cable is used. If the batteries are not in the proximity of the
MFA150 power system, up to 4/0 AWG cables can be used.
If 4/0 flex cable is used, narrow tongue lugs must be used.
Adding or replacing a distribution circuit breaker
WARNING
Precautions to take to avoid service interruptions
Use properly insulated tools when working inside the
control and distribution panel.
Add a new circuit breaker as described in Procedure 8. Refer to Figure 23.
Procedure 8 – Adding a distribution circuit breaker
Step Action
1 Notify the alarm center of the possibility of incoming alarms during the
execution of this procedure.
2 Open the front door and remove the top panel of the control and
distribution panel.
3 Ensure that the new circuit breaker is in the “OFF” position.
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