Transfer a Single UPS from Normal Mode to Maintenance Bypass Mode

On the display, select and then select Function > To bypass.
Remove the cover from the maintenance bypass breaker MBB.
Turn the maintenance bypass breaker MBB to the ON (closed) position.

The load is now supplied via the maintenance bypass breaker.
Disconnect the battery relay from the display by selecting the battery symbol and selecting Batt relay control ON/OFF and confirm to turn off the battery relay. Verify that the Relay status is now off.
Open external battery breaker if external batteries are connected.
Turn the unit input breaker UIB to the OFF (open) position.
Turn the static switch input breaker SSIB to the OFF (open) position.
Turn the unit output breaker UOB to the OFF (open) position.

Disconnect all batteries on the front of the UPS.

DANGER
hazard of electrical shock, explosion or arc flash Wait at least 5 minutes before removing the cover of the UPS after the display has turned off to allow for the capacitors to fully discharged. Always measure for hazardous voltages on all terminals before working on the UPS. Failure to follow these instructions will result in death or serious injury.