COOPER LIGHTING - METALUX
®
DESCRIPTION
The GR5 is a T5-dedicated lensed troffer designed to offer premium
performance in a low profile housing. The GR5’s shallow, low profile
housing is compatible with even highly restrictive plenums. Luminaires
are compatible with today’s popular ceiling systems.
Catalog #
The GR5 offers great performance and great quality. The series is an
excellent choice for commercial offices, schools, hospitals, retail
merchandising and many other applications.
Comments
Type
Project
Date
Prepared by
SPECIFICATION FEATURES
Construction
Electrical**
Frame/Shielding
Unitized low profile recessed
housing is die formed of code
gauge prime cold rolled steel
with full length stiffeners and
mechanical endplate attachment
for added strength. Off center,
ballast cover is easily removed
without tools. Die formed
captive lampholder bracket fully
encloses lampholder wiring for
easy lampholder replacement.
Ample KOs are provided for
continuous row wiring. Built-in
grid-lock feature for safety and
convenience.
Ballasts are CBM/ETL Class “P”
and are positively secured by
mounting bolts. Rotor-lock T5
lampholders. UL/CUL listed.
Suitable for damp locations.
Heavy gauge flat steel door is die
formed with reinforced mitered
corners. Housing and door frame
assemblies incorporate full
length and width mechanical
light traps. Light stabilized,
acrylic prismatic lens.
Finish
Multistage, iron phosphate
pretreatment ensures maximum
bonding and rust inhibition.
Lighting grade baked white
enamel finish with premium
reflectance for high efficiency.
Hinging/Latching
Positive spring loaded steel
latches and safety lock T-hinges
provide secure, high quality door
fit and allow hinging and latching
from either side.
Controls
Fifth Light ballast options are
offered for both 0-10V
continuous dimming and DALI
applications. Combine with
energy-saving products like
occupancy sensors, daylighting
controls, and lighting relay
panels from Cooper Controls
(www.coopercontrol.com) to
maximize energy savings.
2GR5
328T5
354T5
2' X 4' TROFFER
3 LAMP T5
General Purpose
T5 Commercial Troffer
3-1/4"
[83mm]
23-3/4" [603mm]
ENERGY DATA
MOUNTING DATA
LAMP CONFIGURATIONS
Input Watts:
EB Ballast & STD Lamps
328T5 (99)
354T5 (182)
3-1/4" [83mm]
Location of Standard
Access Opening
X=5-3/8"
[137mm]
1-1/2"
[38mm]
23-3/4"
[603mm]
X
X
23-3/4" [603mm]
Luminaire Efficacy Rating
LER = FL-73
Catalog Number: 2GR5-328T5A
2-11/16"
[69mm]
1"
[26mm]
1-1/2"
[38mm]
3-1/2"
[89mm]
Yearly Cost of 1000 lumens,
3000 hrs at .08 KWH = $3.29
3-1/8"
[80mm]
47-15/16" [1218mm]
*Standard G (Grid) Type Fixtures can be
field converted by adding trim kits. See
Compatibility Section or Consult Factory.
DOOR FRAMES
2GR5
F lat, White
Steel ( White
L atches)
**Reference the lamp/ballast data in the
Technical Section for specific lamp/ballast
requirements.
***When ordering Flange Kit for
installation in drywall ceilings, see options
and accessories compatibility section and
ordering logic.
CEILING COMPATIBILITY
G
Grid/Lay-in
Standard
G
Concealed T
COOPER LIGHTING
G
Slot Grid
F
Flange Trim
With Supporting
Swing Gates
Ceiling
Type
Trim
Type
Exposed Grid
Concealed T
Slot Grid
Flange
G
G
G
G***
LAMPS CONTAIN MERCURY. DISPOSE ACCORDING TO
LOCAL, STATE OR FEDERAL LAWS
Safe and convenient means of
disconnecting power.
ADF110893
2GR5
PHOTOMETRICS
2GR5-328T5A
Electronic Ballast
(3) F28W/T5/835
lamps
2900 lumens
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.3 x
mounting height
Efficiency 78.7%
Test Report:
2GR5-328T5A.IES
LER = FL-73
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.29
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
2561
2566
2533
2480
2402
2297
2164
1996
1798
1549
1289
1028
807
612
451
322
230
128
0
Across ⊥
2561
2561
2550
2527
2486
2421
2329
2211
2067
1872
1606
1319
998
731
521
389
285
167
0
45°
2561
2552
2532
2498
2440
2362
2251
2111
1926
1699
1446
1190
908
621
400
263
200
126
0
Coefficients of Utilization
rc
rw
RCR
0
1
2
3
4
5
6
7
8
9
10
94
82
72
64
57
51
46
42
38
35
32
94
79
67
58
50
44
39
35
32
29
26
94
76
63
53
45
39
34
30
27
25
22
91
84
77
70
64
59
55
51
47
44
42
91
81
71
63
56
50
45
41
38
35
32
91
78
66
57
50
44
39
35
31
29
26
91
75
62
52
45
39
34
30
27
24
22
20%
50%
50 30 10
30%
50 30 10
10%
50 30 10
0%
0
87
77
68
60
54
49
44
40
37
34
31
84
74
66
58
52
47
43
39
36
33
31
80
71
63
56
51
46
41
38
35
32
30
79
67
56
48
41
36
32
28
25
23
21
87
75
64
56
49
43
38
34
31
28
26
87
73
61
52
44
39
34
30
27
24
22
84
72
62
54
48
42
38
34
31
28
26
Zonal Lumen Summary
Luminance Data
Zone
0-30
0-40
0-60
0-90
0-180
Angle
in Deg
45
55
65
75
85
Lumens
2036
3351
5708
6843
6843
%Lamp
23.4
38.5
65.6
78.7
78.7
Candela
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
3940
3949
3902
3820
3696
3540
3331
3092
2769
2399
1983
1600
1240
944
705
503
360
202
0
Across ⊥
3940
3937
3922
3888
3820
3718
3576
3393
3181
2873
2471
2027
1544
1117
806
599
443
254
0
45°
3940
3929
3898
3839
3749
3628
3459
3245
2960
2616
2227
1835
1413
961
624
411
309
194
0
Coefficients of Utilization
Effective floor cavity reflectance
80%
70%
70 50 30 10
70 50 30 10
94
86
79
72
66
61
56
52
49
46
43
2GR5-354T5A
Electronic Ballast
(3) F54W/T5/835
lamps
4400 lumens
Spacing criterion:
(II) 1.3 x mounting
height, (⊥) 1.3 x
mounting height
Efficiency 79.8%
Test Report:
2GR5-354T5A.IES
LER = FL-64
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.75
Candela
%Fixture
29.7
49.0
83.4
100.0
100.0
Average
0-Deg
cd/sm
3514
2875
2323
1996
2356
84
70
59
51
44
38
34
30
27
24
22
Average
45-Deg
cd/sm
3854
3328
2357
1630
2319
80
70
61
53
46
41
37
33
30
28
25
80
68
58
50
43
38
33
30
27
24
22
Average
90-Deg
cd/sm
4246
3689
2774
2411
3073
rc
rw
RCR
0
1
2
3
4
5
6
7
8
9
10
Effective floor cavity reflectance
80%
70%
70 50 30 10
70 50 30 10
95
87
80
73
67
62
57
53
49
46
43
95
84
73
65
58
52
47
43
39
36
33
95
80
68
59
51
45
40
36
32
29
27
95
77
64
54
46
40
35
31
28
25
23
93
85
78
71
65
60
56
52
48
45
42
93
82
72
64
57
51
46
42
38
35
33
93
79
67
58
50
44
39
35
32
29
27
93
76
63
53
46
40
35
31
28
25
23
20%
50%
50 30 10
30%
50 30 10
50
89
78
69
61
55
49
45
41
37
34
32
85
75
67
59
53
48
43
40
36
33
31
81
72
64
57
51
46
42
38
35
33
30
89
76
65
56
49
44
39
35
31
29
26
89
74
62
52
45
39
34
31
27
25
22
85
73
63
55
48
43
38
34
31
28
26
Zonal Lumen Summary
Luminance Data
Zone
0-30
0-40
0-60
0-90
0-180
Angle
in Deg
45
55
65
75
85
Lumens
3130
5152
8785
10540
10540
%Lamp
23.7
39.0
66.6
79.8
79.8
%Fixture
29.7
48.9
83.4
100.0
100.0
Average
0-Deg
cd/sm
5442
4474
3583
3117
3718
85
71
60
51
44
39
34
30
27
25
22
Average
45-Deg
cd/sm
5934
5131
3647
2547
3570
10%
30 10
81
71
61
54
47
42
37
34
31
28
26
0%
0
81
69
59
51
44
38
34
30
27
24
22
80
68
57
49
42
37
32
29
26
23
21
Average
90-Deg
cd/sm
6517
5668
4239
3712
4675
Visit our web site at www.cooperlighting.com
Customer First Center 1121 Highway 74 South Peachtree City, GA 30269 770.486.4800 FAX 770.486.4801
4/13
ADF110893
2GR5
ORDERING INFORMATION
SAMPLE NUMBER: 2GR5-328T5A-UNV-EBT1-U
Rating (4)
Blank=
Standard
ATW-SW4=
Chicago
Rated
Width
2=2' Width
Trim Type
G=Grid/Lay-in
(Standard)
Series
R5=General Purpose T5
Commercial Troffer (1)
(1)
Number of
Lamps
3=3 Lamps
(Not included)
Wattage
28T5=28W T5 (48")
54T5=54W T5HO (48")
Shielding
A=#12 Acrylic Pattern
A125=#12 Pattern Acrylic
(.125" Thick)
A19/156=#19 Pattern
Acrylic (.156" Thick)
PB1S=Silver Parabolic
Louver (1/2" x 1/2" x 1/2")
Options
FR=Fire Label
Voltage (2)
347V=347 Volt
UNV=Universal
Voltage 120-277 (3)
Ballast Type
EBT =T5 or T5HO Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Standard Ballast Factor=1.0
Options
GL=Single Element Fuse
GM=Double Element Fuse
Lamps=Lamps Installed
Flex=Flex Installed
EL=Emergency Installed
EBT N=T5 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Normal Ballast Factor=.90 (5)
EBT H=T5 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
High Ballast Factor=1.15 (7)
EBT NDIM=T5 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Step Dimming, Normal Ballast
Factor=.95-1.0 (6)
EBT HDIM=T5 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Step Dimming, High Ballast Factor=1.15
Packaging
U=Unit Pack
Ballast/FactorType
(2)
NOTES: An EQ Grid Clip is recommended for all 9/16" ceiling systems. Products also available in
(3)
non-US voltages and frequencies for international markets. Not available when specifying
(4)
emergencies, voltage must be specific. For NYC rated product, see separate specification sheets.
(5)
(6)
.90 ballast factor available for 2 or 3 14W T5 or 28W T5 lamps only. 1-Lamp step dimming ballast
(7)
in a Normal Ballast factor not available. 2-Lamp ballast will not operate 1-Lamp. 1-Lamp ballast in
(8)
a High Ballast factor not available. For a complete listing of Fifthlight Technology products and other
solutions from Cooper Controls, visit www.coopercontrol.com
Specifications & dimensions subject to change without notice. Consult your Cooper Lighting
Representative for availability and ordering information.
Fifth Light DALI Ballasts (8)
5LT5 =T5 DALI Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 1.0
5LT5H =T5HO DALI Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 1.0
Number of Ballasts
1=1 Ballast
2=2 Ballasts
3=3 Ballasts
ACCESSORIES
EQ-CLIP-U=T-BAR Safety Earthquake Clips (1)
FCTKA-24W-U=Field Installed Flange Kit
FCTK
A – 24
R W – U
Trim Kit
Field
Convertible
22=2' x 2'
24=2' x 4'
N=Natural
W=White
Blank=Single
R=In Row
E=End Row
U=Unit Pack
Aluminum
SHIPPING INFORMATION
Catalog No.
Wt.
2GR5-328T5A
2GR5-354T5A
22 lbs.
25 lbs.
Visit our web site at www.cooperlighting.com
Customer First Center 1121 Highway 74 South Peachtree City, GA 30269 770.486.4800 FAX 770.486.4801
4/13
ADF110893