MRK Series Rack Enclosures

Slim Seismic-Zone 4 Certified Fully Welded Rack


Pre-Configured MRK Enclosure
MA-MRK-4426-AV
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Standard MRK Enclosure
MA-MRK-2426
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Accessories
MA-CN6MM-100
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What's special about these enclosures by Middle Atlantic?

  • Slim 22" width is compact enough to save room in cramped locations.
  • Available in 4 different depths to better suit your application.
  • Click for More Features
  •  
  • UL Classified

Introducing the MRK Series Rack Enclosures, possibly one of the most versatile in Middle Atlantic's entire line. When the need for co-location enclosures or easy side panel access arises, this is the perfect enclosure to meet those needs and more. Pre-configured enclosures are available, geared towards various common applications and including all the accessories you need-and more. Enclosures come with open sides, however, models with side panels are available.

24U
Part # Depth Width Height Weight Price
MA-MRK-2426 26" 22" 42" 110 lbs
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Manufacturer Direct
MA-MRK-2431 31" 22" 42" 122 lbs
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Manufacturer Direct
37U
Part # Depth Width Height Weight Price
MA-MRK-3726 26" 22" 64.75" 148 lbs
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Manufacturer Direct
MA-MRK-3731 31" 22" 64.75" 162 lbs
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Manufacturer Direct
40U
Part # Depth Width Height Weight Price
MA-MRK-4026 26" 22" 70" 152 lbs
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Manufacturer Direct
MA-MRK-4031 31" 22" 70" 170 lbs
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Manufacturer Direct
MA-MRK-4036 36" 22" 70" 188 lbs
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Manufacturer Direct
MA-MRK-4042 42" 22" 70" 206 lbs
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Manufacturer Direct
44U
Part # Depth Width Height Weight Price
MA-MRK-4426 26" 22" 77" 156 lbs
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Manufacturer Direct
MA-MRK-4431 31" 22" 77" 176 lbs
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Manufacturer Direct
MA-MRK-4436 36" 22" 77" 184 lbs
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Manufacturer Direct
MA-MRK-4442 42" 22" 77" 194 lbs
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Manufacturer Direct
44U - WITH CAGE NUT RACK RAIL
Part # Depth Width Height Weight Price
MA-MRK-4431PRO 31" 22" 77" 160.2 lbs
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Manufacturer Direct
MA-MRK-4436PRO 36" 22" 77" 167 lbs
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Manufacturer Direct
MA-MRK-4442PRO 42" 22" 77" 176.5 lbs
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Manufacturer Direct

Pre-Configured Enclosure

Pre-Configured AUDIO/VIDEO Enclosures - 44U
Part # Description Depth Width Height Weight Price
MA-MRK-4426-AV Audio/Video Configured 26" 22" 77" 380

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Manufacturer Direct
MA-MRK-4426-AV-AB A/V Configured - no side panels 26" 22" 77" 280
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Manufacturer Direct
MA-MRK-4431-AV A/V Configured 31" 22" 77" 400
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Manufacturer Direct
MA-MRK-4431-AV-AB A/V Configured - no side panels 31" 22" 77" 300
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Manufacturer Direct
Pre-Configured DIGITAL VIDEO RECORDER Enclosures - 44U
Part # Description Depth Width Height Weight Price
MA-MRK-4431-DVR DVR Configured 31" 22" 77" 420
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Manufacturer Direct
MA-MRK-4431-DVR-AB DVR Configured - no side panels 31" 22" 77" 310
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Manufacturer Direct
Pre-Configured NETWORK VIDEO RECORDER Enclosures - 44U
Part # Description Depth Width Height Weight Price
MA-MRK-4436-NVR NVR Configured 36" 22" 77" 410
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Manufacturer Direct
MA-MRK-4436-NVR-AB NVR Configured - no side panels 36" 22" 77" 300
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Manufacturer Direct
Accessories
Part # Description Qty Weight Price
MA-CN6MM-100 6mm Cage Nuts 100 per pkg 1.0 lbs
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Manufacturer Direct
MA-HP-6MM-100 6mm Phillips Head Rack Screws 100 per pkg 1.3 lbs
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Manufacturer Direct
MA-MW-CFRD-44 76.875" Split Rear Door for 44U MRK Enclosure
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1 116 lbs
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Manufacturer Direct
  • Grounding and bonding stud installed in base.
  • Standard front and rear adjustable 11-gauge, 10-32 threaded, wide rack-raisl with numbered rack-space increments to speed equipment mounting.
  • Abundant lacing points throughout the interior facilitate cable management.
  • Fully welded construction provides:
    1. Static Load capacity – 10,000 lbs
    2. UL Listed load capacity – 2,500 lbs
    3. Seismic Certified load capacity – 1,050 lbs
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    Configured AUDIO/VIDEO Enclosure includes:

  • Integrated fan top with proportional speed fan controller
  • Configurable rear door with bottom vent, solid locking front door
  • 3-1/4" wide vertical lacer strip
  • (6) Horizontal lacer bars
  • (12) 8" Velcro® cable management straps
  • Thin power strip, 20 Amp, 20 outlets with cord
  • Leveling feet
  • (100) 10-32 rack screws included
  • Side panels optional
  • Ganging hardware optional for multi-bay installations
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    Configured DIGITAL VIDEO RECORDER Enclosure includes:

  • (2) Pairs 10-32 threaded rackrails
  • Fully vented top
  • Fully perforated vented front door and split rear door
  • 3-1/4” wide vertical lacer strip
  • (6) Horizontal lacer bars
  • (12) 8”Velcro® cable management straps
  • Thin power strip, 20 Amp, 20 outlets with cord
  • (1) each 1-space and 2-space brush grommet
  • Leveling feet
  • (100) 10-32 rack screws included
  • Side panels optional
  • Ganging hardware optional for multi-bay installations
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    Configured NETWORK VIDEO RECORDER Enclosure includes:

  • (2) Pairs cage nut style rackrails
  • (1) Pair of cage nut style Z-rail adaptors
  • Fully vented top
  • Fully perforated vented front door and split rear door
  • 3-1/4" wide vertical lacer strip
  • (6) Horizontal lacer bars
  • (12) 8" Velcro® cable management straps
  • Thin power strip, 20 Amp, 20 outlets with cord
  • (1) Each 1-space and 2-space brush grommet
  • Leveling feet
  • (100) 6mm threaded cage nuts and rack screws
  • (50) 10-32 threaded cage nuts and rack screws
  • Side panels optional
  • Ganging hardware optional for multi-bay installations
  • MRK Series Rack Enclosures Basic Dimensions Drawing PDF

     

    Code Compliance

  • Seismic Certified – Zone 4
  • OSHPD approved for fixed equipment anchorage in California Health facilities
  • Stud in base of rack facilitates the proper grounding and bonding of electronic equipment, as per NEBS and NEC Standards
  • UL listed in the US and Canada
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    Part # RU Depth Width Height Weight
    MA-MRK-2426 24 26" 22" 42" 110
    MA-MRK-2431 24 31" 22" 42" 122
    MA-MRK-3726 37 26" 22" 64.75" 148
    MA-MRK-3731 37 31" 22" 64.75" 162
    MA-MRK-4026 40 26" 22" 70" 152
    MA-MRK-4031 40 31" 22" 70" 170
    MA-MRK-4036 40 36" 22" 70" 188
    MA-MRK-4042 40 42" 22" 70" 206
    MA-MRK-4426 44 26" 22" 77" 156
    MA-MRK-4431 44 31" 22" 77" 176
    MA-MRK-4431PRO 44 31" 22" 77" 160.2
    MA-MRK-4436 44 36" 22" 77" 184
    MA-MRK-4436PRO 44 36" 22" 77" 167
    MA-MRK-4442 44 42" 22" 77" 194
    MA-MRK-4442PRO 44 42" 22" 77" 176.5
    MA-MRK-4426-AV 44 26" 22" 77" 380
    MA-MRK-4426-AV-AB 44 26" 22" 77" 280
    MA-MRK-4431-AV 44 31" 22" 77" 400
    MA-MRK-4431-AV-AB 44 31" 22" 77" 300
    MA-MRK-4431-DVR 44 31" 22" 77" 420
    MA-MRK-4431-DVR-AB 44 31" 22" 77" 310
    MA-MRK-4436-NVR 44 36" 22" 77" 410
    MA-MRK-4436-NVR-AB 44 36" 22" 77" 300
    Manuals

     

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