Our Seismic Enclosures provide a safe, secure environment for sensitive equipment in Zone 4 areas where earthquakes can put systems at risk without notice. Unlike other manufacturer designs that adapt a simple cabinet, these cabinets are engineered from the ground up to NEBS GR-63-CORE certification. They are available in RU heights of 30, 35, 40 and 45, panel widths of 19" and 24" and frame depths of 25.5", 30" and 36". Seismic frames have a 14 ga. top panel that is part of the frame and features two 4" x 17" cable egress ports for larger cable bundles. There is also a full line of standard accessories available in your choice of 11 standard durable powder coat color finishes.