A cabinet installed in a data center is secured to the floor in the data center by a seismic kit to eliminate excessive deflection of the cabinet during a seismic event. The seismic kit includes a bracket and leveling leg clamps. The bracket is secured to the cabinet frame. The bracket has a first member and a second member with the second member extending upwards from the first member. The leveling leg clamps are secured to the first member of the bracket. The leveling leg clamps have a rectangular member with a cutout to receive leveling legs of the cabinet.