Great Lakes Enhanced Network 45U x 40"W x 42"D Enclosure - Solid Top & Sides, Mesh Front & Rear

Please note, GL840ENT-4042SSS has been discontinued. To discuss alternative options, please contact your Server Racks Online sales representative.

EN Enclosures are designed with built-in features to manage high-density cable management applications of switches and servers. Knockouts and openings for top and bottom cable access. Repositionable finger sections along each rails. Features open side area to accommodate large bundles within and between ganged enclosures. The EN ships completely assembled and is ready for immediate use!

  • Dimensions: 84.00"H x 40.00"W x 42.00"D (40" usable depth)
  • Rack Spaces: 45 RMU, 19" EIA 310-E Compliant
  • Weight Capacity: 2000 lbs. on levelers or bolted to floor
  • Stock Color: Black
  • Includes: (8) levelers, solid top, mesh front door, mesh rear door, solid sides, grounding kit, and cable management fingers
  • Rails: (2) pairs of tapped #10-32 mounting rails with cable management "fingers"
Great Lakes EN Certifications - cUL, RoHS, Made in USA

Download IconGreat Lakes EN Configuration Guide (PDF)

Great Lakes GL840ENT-4042SSS - Click to enlarge


Price: $5,784.00
NOW: $5,012.00
Save: $772.00
Free Project Evaluation
Rack Units45U
Dimensions84"H x 40"W x 42"D

Great Lakes EN Rails

  • Two pairs of black powder coated, universal 19" #10-32 mounting rails with RMU marking; 3/8" sq. (M6) rails also available
  • Front rails are fixed and recessed; Rear rails are fully adjustable
  • Designed with a Flexible Mounting Profile (FMP), a series of holes along each rail that falls outside of the mounting profile; allows mounting of power strips, cable management, patch panels, etc.

Cooling Options

Great Lakes EN Cooling Options

Filler panels and brush grommet kits to prevent bypass airflow within the enclosure

Great Lakes Baffle Kits create proper airflow for switches, and side-to-side airflow equipment, as suggested by manufactures such as Cisco Nexus or Catalyst Switches. Cool air is channeled into the equipment along the right side and exhaust air is directed out along the left side. Kits are tool-less and easily attach to rails outside of EIA mounting profile.

Ganged Enclosure

2x Great Lakes EN Ganged Together

EN Enclosures are designed so that the front doors open to the left or right. When two enclosures are ganged together, doors can open in opposite directions, creating a large space where cables are easily accessible and able to be routed up, down, or to the next enclosure.

Power & Grounding

  • PDU mounting brackets that allow button mounting of major industry PDUs
  • Optional zero RMU mounting brackets allow vertical mounting of 19" power strips
  • Grounding kit with quick disconnect wires are included with each EN configuration

Cable Management "Fingers"

  • Fingers (made up of 7 RMU sections) are pre-installed on all rails and align with RMUs for clean cable pathways
  • Additional kits (or single finger sections) are available

Additional Cable Management

  • Large top knockouts for top cable access
  • Additional kits (or single finger sections) are available

Optional Accessories include:

  • 19" cable organizers
  • Overhead cable accessories, including troughs and ladder rack brackets
  • Horizontal cable manager for front to rear cables