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Installation
15
7.
Seal the cover as needed with a lead seal for tamper evi-
dent protection.
After the cover has been replaced a wire lock may be inserted
through holes in the screws and sealed with a lead seal. This
will help prevent tampering by unauthorized personnel.
2.8
Communications
To connect the trip unit for communications with a PC, connect
a serial cable to the Serial Port on the front panel of the trip unit.
Refer to the
ACCESS Systems Installation Guide
for a thor-
ough explanation of how to connect several devices on the
SEAbus network to a personal computer.
2.9
Removing the Trip Unit from a
Systems Breaker
Follow the steps below when removing the trip unit from an SB
Encased Systems Breaker. Before starting to remove the trip
unit, set the circuit breaker to the “Open” and “Discharged”
positions. If the circuit breaker is in the “Closed” position, the
breaker will trip when the trip unit is removed.
Make sure that the circuit breaker is in the open position. Refer
to the breaker’s information and instruction guide for the proper
operating procedure.
1.
Remove the eight screws from the breaker front cover. Lift
off the front cover.
Spring Charged
Contacts Closed
Spring Discharged
Contacts Open
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