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Seismic Cabinets for Harsh Environments

Certain environments require extra protection for rackmounted equipment. Whether your venue is earthquake-prone or subject to regular vibration, such as an airport or factory, a seismic enclosure may be the answer for keeping equipment safe.

Testing Procedure

Eaton Seismic Cabinets are performance-tested to EIA-310-E, Seismic Zone 4 (NEBS GR-63-CORE) standards. The enclosures are loaded with simulated equipment and placed on a shaker table designed to replicate the force of an earthquake. Various configurations and force directions (e.g. side-to-side, front-to-back) are tested to ensure that the heavy-duty steel welding is up to its task. To pass the test, the enclosure must meet displacement* requirements of less than 3 inches and emit no resonant frequency below 6 Hz. A test is considered to be successful if the enclosure's welding is intact and the equipment within the enclosure is unharmed.

* Displacement refers to the distance the enclosure moves from its initial position during testing

42U SmartRack Premium Seismic-Rated Enclosure


The SR42UBZ4 is designed for use in earthquake zones. The enclosure features a heavy-duty welded construction, providing more security for use in unstable environments. Reinforcing Zone 4 Seismic Brackets offer enhanced stability and protection with a Zone 4 seismic rating.

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Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 773-869-1776 or email