Auxiliary Power Source - Siemens SBA 800 Information And Instruction Manual

External Accessories
Auxiliary Power Supply
Auxiliary Power Supply
Test Procedures
1. To test trip unit, plug Auxiliary Power Module (APM) into
front of trip unit.
2. Hold down Power button on this Auxiliary Power Module
and the desired test buttons on the trip unit. Note that only
the Power button must be held down for the duration of
the test sequence. If Power button is released, test must
be restarted.
3. After trip unit test is complete release the Power button
on the APM.
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Auxiliary Power Supply
The auxiliary power supply is a plug-in supply for bench testing
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 Monitoring the Trip
Unit in the Operating Instructions section). The auxiliary power
supply operates from 120V ac source power.