Great Lakes® Zone 4 Seismic Floor Enclosures

Protects Your Network Equipment from Severe Earthquakes

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What's special about these seismic enclosures?

  • Exceeds Zone 4 Seismic Testing standards, protecting your network equipment in the world’s most active earthquake zones
  • Fully welded, cold rolled steel frame for high structural stability and durability
  • 1,000 lb (453 kg) seismic and 3,000 lb (1360 kg) non-seismic weight capacities ensure that even the heaviest appliances are accommodated
  • 45U capacity provides plenty of equipment space for large and expanding networks
  • Keyed entry provides security against thieves and vandals
  • Click for More Features
UL rated

It’s impossible to know what course nature will take, and preparing for the worse is a necessity for any business. Great Lakes’ 45U Zone 4 Seismic Enclosure is certified to protect 1000 lbs of your valuable network equipment in the highest risk earthquake zones, and also provides protection from flames, impact, and other types of damage.


QGL-GL840EZ-3042 Seismic Zone 4 Enclosure 45U 84"H x 30"W x 42"D
(213.36cm x 76.2cm x 106.68cm)



QGL-HDW-105-50 M6 cage nuts w/screws (Package of 50) 1.75 lb (0.79 kg)
MOR-91620 Flexible Braid Jumper Strap 0.72 lb (0.33 kg)
  • M6 cage nuts and screws included
  • 3 Universal vertical power strip mounts on each side for up to 70” (177.8 cm) L x 2.5” (6.35 cm) W
  • Top knockouts for cable access, chimney exhaust, and exhaust fans up to 1100 CFM
  • Rear cable pass-through with optional brush grommet for cabinet-to-cabinet connection
  • Side panels are screwed on from the inside for extra protection against tampering
  • Front and rear steel mesh doors provide extra ventilation, helping to keep your equipment at optimal temperature
  • Textured black powder coat finish for attractive looks that resist chipping, fading, and loss of integrity
  • Additional colors available upon request to fit your décor
  • NEBS GR-63-CORE Seismic Certified
  • 19" EIA 310-D Compliant
  • UL 60950
  • Made in USA USA flag



Rack Space 45U
Dimensions 84"H x 30"W x 42"D (213.36cm x 76.2cm x 106.68cm)
Top Knockout 308 in2 (782 cm2)
Weight 525 lbs. (238 kg)
Weight Capacity 1000 lbs. (453 kg) Seismic
3000 lbs. (1360kg) Non-Seismic
Material Cold Rolled Steel
Material Gauge
  • 12 AWG Mounting Rails
  • 10 AWG Frame
  • 14 AWG Square Tubing Doors
  • 16 AWG Side Panels
  • 16 AWG Top Panel







ES Server EnclosuresGreat Lakes Preconfigured ES Server Enclosures
Perfect for both large and small businesses, these server enclosures are preconfigured with rails, locking doors, and side panels for out-of-box convenience, but are completely reconfigurable to make room for your choice of updates.

E-Series EnclosureGreat Lakes E-Series Enclosure
Dimensions: 72?H x 29?W x 36?D
Base unit with two (2) pair of powder coated 19" universal (M6) rails and M6 hardware. The Enhanced Series modular design accommodates initial installation and future additions in today's progressive network environment.


Keyboard TrayMonitor, Keyboard, and Mouse Shelf
This rack mount shelf is a standard for all manufacturers' 19" rack mount applications, is heavy duty and can hold a monitor, keyboard, and mouse at a convenient working position. Can be mounted on a 19" rack at a height for standing or sitting.

Neat PatchNeat Patch
Neat-Patch is a patented patch cable storage solution that's unlike anything the network cabling world has never known. Its unique design enables network installers and IT techs to store excess patch cable length in a neat and tidy compartment that installs discreetly between patch panels.

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