DRK Series
extra wide multi-bay design
contains integral cable ducts
ideal for accommodating
large cable bundles
FEATURES:
19” PANEL WIDTH CABLE MANAGEMENT ENCLOSURE
• Fully welded construction provides the following weight capacities
- UL Listed load capacity:2,500 lbs
- Seismic load capacity: 755 lbs.
• 30” OD width, 31-1/2”, 36” and 42” OD depths available
• Includes 100 qty. rack screws
• 4 Grounding and bonding studs installed in base and top
• 1/2”, 3/4”, 1” & 1-1/2” electrical knockouts on split rear plates (top & bottom),
easily removable for cable pass-through, top plates additionally include UHF/
VHF knockouts
• 2 pairs of wide rackrail labeled with EIA standard rackspace increments
available 10-32 threaded or cage-nut style
• Vented rear door standard
• One pair of cable ducts with solid steel hinged doors and 4-point magnetic
losure pre-installed in front
• Seismic Certified (when used with MRK-Z4 option) with an Ip value of 1.5
• Durable black textured powder coat finish
SPECIFICATIONS:
• UL Listed in the US and Canada
EIA compliant 19” panel width equipment enclosure shall be Middle Atlantic Products model #
DRK19-44-__(31, 31PRO, 31K, 36, 36PRO, 42). Overall dimensions of enclosure shall be 83-1/2”H x
30”W x ___(31-1/2”, 36”, 42”)D. Useable height shall be 44 rackspaces, useable depth shall be ___
(24-1/4”, 28-3/4”, 34-3/4”). Fully welded construction shall provide a UL Listed 2,500 lb. weight
capacity. Enclosure shall be constructed of the following materials: top, bottom and horizontal
braces shall be steel, all structural elements shall be finished in durable black powder coat. Rack
shall include a vented, locking and latching rear door. Enclosure shall come equipped with 10” fan
top and fan guard for ventilation, one pair of cable ducts with steel doors pre-installed in front of
rack, two pairs of rackrail with ____ (tapped 10-32, 6mm cage nut) mounting holes in universal EIA
spacing, finished in black e-coat with numbered rackspaces, and vented rear door. Rack shall have a
removable rear knockout panel with 1/2”, 3/4”, 1”, and 1-1/2” electrical knockouts installed in base,
and removable split rear knockout panels with electrical knockouts and BNC knockouts for UHF/
VHF antennae installed in top. Grounding and bonding studs shall be zinc plated 1/4-20x1 threaded,
installed two each in base and top of enclosure (DRK19-44-31K shall additionally include
plexiglass front door, one pair lockable side panels, and leveling feet). DRK Series enclosures shall
satisfy the 2007 & 2010 CBC; 2006, 2009 & 2012 IBC; ASCE 7-05 (2005 Edition) & ASCE 7-10
(2010 Edition) and the 2006 & 2009 editions of NFPA 5000 for use in areas of high seismicity, Seismic Use Group III, Zone 4 or Seismic Design Category (SDC) “D” with lateral force requirements for
protecting 755 lbs. of essential equipment in locations with the highest level of seismicity and top
floor or rooftop installations with an Importance factor (Ip) of 1.5 when used with MRK-Z4 seismic
floor anchor bracket. Rack shall be OSHPD approved for fixed equipment anchorage in California
healthcare facilities. DRK shall be UL Listed in the US and Canada. DRK shall be GREENGUARD
Gold Certified. DRK enclosure shall be RoHS EU Directive 2011 / 65 / EU compliant. DRK shall be
manufactured by an ISO 9001 and ISO 14001 registered company. Rack enclosure shall be warrantied to be
free from defects in material or workmanship under normal use and conditions for the lifetime of the rack.
Customizable specification clips available at middleatlantic.com
EIA/TIA COMPLIANT
SEISMIC CERTIFIED
DRK19-44-31
OPTIONS:
• Front doors shall be model # DPVFD-44 (vented plexi),
model # DPFD-44 (plexi), model # DVFD-44 (25% open
area), model # DLVFD-44 (70% open area)
• Split rear door, vented with 76% open area shall be
model # DCLVRD-44
• Additional rail kit, 11-gauge, 10-32 threaded, with EIA
numbered spacing shall be model # DRK19-RR44
• Additional rail kit, 11-gauge, cage-nut style, with EIA
numbered spacing shall be model # DRK19-RR44PRO
• Caster base shall be model # CBS-DRK-31 (31-1/2”
overall depth), CBS-DRK-36 (36” overall depth)
• Pair of keylocked side panels shall be model #
SPN-44-312 (31-1/2” overall depth), SPN-44-36
(36” overall depth), SPN-44-423 (42” overall depth)
• Optional 10” ventilation fan shall be model # FAN-10
•
Top panels shall be steel, multiple styles available
including model # MW-ST (solid), MW-4FT
(four 4-1/2” fans), MW-6FT (three 6” fans), MW-VT
(vented) and MW-LA (accepts 6” and 12” cable ladders)
• Additional cable duct shall be model # DRK-44DUCT,
sold individually
•
Rail bracket adapters shall allow for mounting of blank
or other panels vertically between rackrail brackets.
Available for 44 space enclosures and be model #
RBA-MV44-2 (2 rackspaces)
• Seismic compliancy floor anchor brackets shall be
model # MRK-Z4
WHAT GREAT SYSTEMS ARE BUILT ON.™
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96-967/ rev j / 3-9-18
DRK Series
BASIC DIMENSIONS
NOTE:
ALL DIMENSIONS IN FORMAT:
INCHES [MILLIMETERS]
22.88
[581]
TOP OPENING DIMENSIONS
WITH FAN TOP REMOVED
GRILL FOR 10 [254] FAN
(FAN NOT INCLUDED)
1" [25] & 1-1/2" [38] EKO
1/2" [13] & 3/4" [19] EKO
5/8" [16] DIA KO
5.94 [151]
.78 [20]
19.50
[495]
2 RACKSPACE
REMOVABLE SERVICE PLATE
1/2" [13] DIA "D" KO
(UHF/VHF ANTENNA KO)
TOP VIEW
REMOVABLE EKO PLATES
1.72 [44]
7.44 [189]
1" [25] & 1-1/2" [38] EKO
DETAIL A
SCALE 1/16
"A"
"B"
USEABLE
DEPTH
SEE DETAIL
A
2.13
[54]
8.41 [214]
30.00 [762]
1.50
[38]
DETAIL B
SCALE 1/16
SCALE 1/32
19 [483]
PANEL
WIDTH
OPENING (8X)
.875 X 4.875
[22] [124]
83.49
[2121]
OVERALL
W/ FAN TOP
77.13
[1959]
44 USEABLE
RACK SPACES
SEE DETAIL B
VIEWS SHOWN WITH
REAR DOOR REMOVED
REAR VIEW
SIDE VIEW
FRONT VIEW
DIMENSIONAL NOTES:
- SPN-44-XXX ADDS .625 [16] PER SIDE
TO OVERALL WIDTH.
- CBS-DRK-XX ADDS .75 [19] TO
OVERALL HEIGHT.
- DXFD-44 ADDS .92 [23] TO
OVERALL DEPTH.
- REMOVAL OF FAN TOP REDUCES
HEIGHT BY .375 [10].
MODEL #.
REAR DOOR
RAIL TYPE
DRK19-44-31
YES
10-32 THREADED
DRK19-44-31LRD
NO
10-32 THREADED
DRK19-44-31PRO
YES
CAGE NUT
DRK19-44-31PROLRD NO
CAGE NUT
DRK19-44-31K*
YES
10-32 THREADED
DRK19-44-36
YES
10-32 THREADED
DRK19-44-36LRD
NO
10-32 THREADED
DRK19-44-36PRO
YES
CAGE NUT
DRK19-44-36PROLRD NO
CAGE NUT
DRK19-44-42
YES
10-32 THREADED
DRK19-44-42LRD
NO
10-32 THREADED
DRK19-44-42PRO
YES
CAGE NUT
DRK19-44-42PROLRD NO
A
B
C
D
E
31.40 [798]
24.25 [616]
27.26 [692]
29.29 [744]
26.51 [673]
36.00 [914]
28.85 [733]
31.86 [809]
33.89 [861]
31.11 [790]
42.00 [1067]
34.85 [885]
37.86 [962]
39.89 [1013]
37.11 [943]
CAGE NUT
*INCLUDES PLEXI FRONT DOOR, LEVELING FEET, REMOVABLE SIDE PANELS
WHAT GREAT SYSTEMS ARE BUILT ON.™
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2
DRK Series
BASIC DIMENSIONS
NOTE:
ALL DIMENSIONS IN FORMAT:
INCHES [MILLIMETERS]
TOP VIEW
4.25 [108]
TOP OPENING
8X
1.473 [37]
26.87
[683]
.44 [11]
"E"
27.88
[708]
4.13
[105]
OVERALL WIDTH
(3.25 [83] OPENING
WIDTH)
2.38 [60]
25.13
[638]
76.75
[1949]
2.000 [51]
"C"
BOTTOM VIEW
SCALE 1/16
.72
[18]
"D"
FLOOR MOUNTING
LOCATIONS
SCALE 1/16
REAR
VIEW
SOLID HINGED
DOOR WITH
4 POINT
MAGNETIC
CLOSURE
SIDE
VIEW
OPENING (8X)
.875 X 4.875
[22] [124]
OPENING 2.250 X 3.000
[57]
[76]
(21X THIS SIDE
17X OTHER SIDE)
FRONT VIEW
(DOOR OPEN)
CABLE DUCT
WHAT GREAT SYSTEMS ARE BUILT ON.™
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