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4.0 Installation
4.8 Input voltage tap selection—208 Vac, 50/60 Hz use only
As furnished, the UPS is configured to operate from a single phase
220240Vac, 50/60 Hz source. To operate the UPS from a 208Vac, 50/60 Hz source,
the UPS must be reconfigured. The steps required for this action are listed below.
Note that regardless of the input voltage tap selected, the UPSs output will remain in
the 220240Vac range unless an alternate power distribution plate is installed.
4.8.1 Turn off (O) the UPSs input circuit breaker and unplug the input power cord.
4.8.2 Remove the 10-32 x 3/8-in. SEM screw holding the red Input Voltage Select
Wire (see illustration) to the tap bar marked 240VACSELECT.
4.8.3 Move the red Input Voltage Select Wire to the tap bar marked
208VACSELECT and tighten the screw.
4.8.4 See Section 5.2.6 to check the UPSs upper transfer to on-battery voltage and to
set the UPSs output voltage reporting to 208V.
208Vac, 50/6 Hz
input configuration
220–240Vac, 50/60 Hz
input configuration
208VAC
SELECT 208VAC
SELECT
240VAC
SELECT 240VAC
SELECT
Input voltageselect wire(red)