FIG. 1 is a perspective view of an uninterruptible power supply, showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side elevation view thereof; the left side elevation view is a mirror image thereto;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken line showing of the environment is for illustrative purposes only and forms no part of the claimed design.