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2.9 Maintenance switch
There are voltages present inside the UPS when it works under line mode, battery mode
or bypass mode, so you can make the UPS separate with the utility via closing the
Maintenance switch and thus ensure safe on-line maintenance.
2.10 Dustproof net (option)
Dustproof net is used to protect the UPS from dust and it is necessary to install a dustproof
net for the device at an environment with heavy dust or smog. Dustproof net should be
installed inside the UPS and at the back of the front panel. Please refer to the dustproof net
quick installation guide for details.
Maintenance switch
Maintenance switch
O/P
I/P
Battery