External Accessories
Auxiliary Power Supply
Before installing the d isplay module, the breaker should be
placed in the open position.
The display module is a plug-in unit. To install the module:
1 . Remove the trip unit's transparent cover.
2. Remove cover from the d isplay module receptacle.
3. Insert the module into the receptacle.
4. Replace and seal the transparent cover.
Auxiliary
Power
Supply
Auxiliary Power Supply
The auxiliary power supply is a plug-in supply for bench
test1ng the Electronic Trip Unit. The supply may also be used
to power the trip unit during the execution of a "go/no-go"
type test before bringing the SB breaker on-line (see
Mon1tonng the Trip Unit in the Operating I nstructions
sect1on). The auxiliary power supply operates from 1 20V ac
source power.
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