American Power Conversion 250 A Power Supply User Manual


 
Total Power Off
28 InfraStruXure Power Generation System
3. Set the Source 2 switch to OFF (
):
a. Set the selector on the Source 2 switch to Manual.
The operating lever will swing out when the selector is set to Manual.
b. Turn the Source 2 switch counterclockwise to OFF (
). Use the operating lever key for
easier operation.
4. Set the main Source 1 circuit breaker to OFF (
).
5. Set the main Source 2 circuit breaker to OFF (
). If Source 2 is a generator, set the generator
control switch to OFF (
). If OFF is not an option, set the generator control switch to Manual.