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. 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.
Controls
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.
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
228T5
254T5
428T5
454T5
2' X 4' TROFFER
2 OR 4 LAMP T5
General Purpose
T5 Commercial Troffer
3-1/4"
[83mm]
23-3/4" [603mm]
ENERGY DATA
LAMP CONFIGURATIONS
MOUNTING DATA
Input Watts:
2 LAMP
Location of Standard
Access Opening
EB Ballast & STD Lamps
228T5 (66), 254T5 (121)
428T5 (128), 454T5 (226)
3-1/4" [83mm]
1-1/2"
[38mm]
1-1/2"
[38mm]
10-3/4"
[274mm]
23-3/4" [603mm]
23-3/4"
[603mm]
Luminaire Efficacy Rating
LER = FL-82
Catalog Number: 2GR5-228T5A
4 LAMP
1"
[26mm]
3-1/2"
[89mm]
3-1/4" [83mm]
3-1/8"
[80mm]
47-15/16" [1218mm]
X=4-3/16"
[107mm]
Y=5-3/8"
[137mm]
X
Y
X
Yearly Cost of 1000 lumens,
3000 hrs at .08 KWH = $2.93
23-3/4" [603mm]
*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.
ADF110892
2GR5
PHOTOMETRICS
2GR5-228T5A
Electronic Ballast
(2) F28W/T5/835
lamps
2900 lumens
Spacing criterion:
(II) 1.3 x mounting
height, (⊥) 1.3 x
mounting height
Efficiency 87%
Test Report:
2GR5-228T5A.IES
LER = FL-82
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.58
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
1886
1892
1870
1829
1772
1695
1596
1473
1332
1141
946
763
597
454
338
241
172
93
0
Across ⊥
1886
1887
1878
1861
1829
1782
1721
1638
1536
1393
1190
960
736
533
385
286
208
119
0
45°
1886
1882
1867
1839
1797
1737
1659
1556
1429
1256
1077
877
666
456
293
195
148
91
0
Coefficients of Utilization
rc
rw
RCR
0
1
2
3
4
5
6
7
8
9
10
104
91
80
71
63
57
51
46
42
39
36
104 104
88 84
74 70
64 59
56 50
49 43
43 38
39 34
35 30
32 27
29 25
101
93
85
78
71
66
61
56
53
49
46
101
89
78
69
62
56
50
46
42
38
35
101
86
73
63
55
48
43
39
35
32
29
101
83
69
58
50
43
38
34
30
27
25
20%
50%
50 30 10
30%
50 30 10
10%
50 30 10
0%
0
97 97
85 83
75 71
67 62
60 54
54 47
49 42
44 38
41 34
37 31
35 29
93
82
73
65
58
52
47
43
40
36
34
89
79
70
62
56
50
46
42
39
36
33
87
74
62
53
46
40
35
31
28
25
23
97
80
67
57
49
43
38
33
30
27
24
93
80
69
60
53
47
42
37
34
31
28
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
1499
2470
4213
5047
5047
%Lamp
25.8
42.6
72.6
87.0
87.0
Candela
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
3076
3086
3047
2982
2886
2763
2603
2409
2175
1876
1547
1248
975
745
549
399
281
157
0
Across ⊥
3076
3074
3062
3032
2986
2911
2804
2675
2512
2272
1952
1579
1195
861
626
462
345
202
0
45°
3076
3069
3044
2999
2929
2835
2706
2539
2329
2054
1755
1438
1089
748
481
317
241
150
0
Coefficients of Utilization
Effective floor cavity reflectance
80%
70%
70 50 30 10
70 50 30 10
104
95
87
80
73
67
62
58
54
50
47
2GR5-254T5A
Electronic Ballast
(2) F54W/T5/835
lamps
4400 lumens
Spacing criterion:
(II) 1.3 x mounting
height, (⊥) 1.4 x
mounting height
Efficiency 93.7%
Test Report:
2GR5-254T5A.IES
LER = FL-68
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.53
Candela
%Fixture
29.7
48.9
83.5
100.0
100.0
Average
0-Deg
cd/sm
2588
2134
1723
1494
1712
93
78
66
56
48
42
37
33
30
27
24
Average
45-Deg
cd/sm
2849
2452
1731
1208
1675
89
77
67
58
51
46
41
37
33
30
28
89
76
64
55
48
42
37
33
29
27
24
Average
90-Deg
cd/sm
3160
2685
2023
1772
2190
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
111
102
94
86
79
73
67
62
58
54
51
111
98
86
76
68
61
55
50
46
42
39
111 111
94 91
80 75
69 63
60 54
53 47
47 41
42 36
38 32
34 29
31 26
109
100
91
83
77
71
65
61
57
53
50
109
96
84
75
67
60
54
49
45
41
38
109
92
79
68
59
52
46
42
37
34
31
109
89
74
62
53
46
41
36
32
29
26
20%
50%
50 30 10
30%
50 30 10
50
104
92
81
72
64
58
52
48
44
40
37
100
88
78
69
62
56
51
46
43
39
36
96
85
75
67
60
54
49
45
41
38
36
104
89
76
66
58
51
46
41
37
34
31
104
87
72
61
53
46
40
36
32
29
26
100
86
74
64
57
50
45
40
36
33
30
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
2445
4029
6877
8242
8242
%Lamp
27.8
45.8
78.1
93.7
93.7
%Fixture
29.7
48.9
83.4
100.0
100.0
100
84
71
60
52
45
40
36
32
29
26
Average
0-Deg
cd/sm
4255
3490
2828
2473
2889
Average
45-Deg
cd/sm
4659
4021
2839
1965
2761
10%
30 10
96
83
72
63
55
49
44
40
36
33
30
0%
0
96
81
69
59
51
45
40
35
32
29
26
94
79
67
57
49
43
38
34
30
27
24
Average
90-Deg
cd/sm
5154
4416
3268
2863
3718
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
ADF110892
2GR5
ORDERING INFORMATION
SAMPLE NUMBER: 2GR5-228T5A-UNV-EBT1-U
Rating (8)
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)
Number of
Lamps
2=2 Lamps
4=4 Lamps
(Not included)
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 (6)
EBT NDIM=T5 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Step Dimming, Normal Ballast
Factor=.95-1.0
EBT HDIM=T5 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Step Dimming, High Ballast Factor=1.15
Packaging
U=Unit Pack
Ballast/FactorType
Wattage
28T5=28W T5 (48")
54T5=54W T5HO (48") (4)
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")
NOTES:
(1)
Options
FR=Fire Label
(2)
An EQ Grid Clip is recommended for all 9/16" ceiling systems. Products also available in non-US
(3)
voltages and frequencies for international markets. Not available when specifying emergencies,
(4)
voltage must be specific. High temperature ballast required for 4 lamp T5HO configurations.
(5)
(6)
.90 ballast factor available for 2 or 3 14W T5 or 28W T5 lamps only. 1-Lamp ballast in a High Ballast
(7)
factor not available. 1-Lamp step dimming ballast in a Normal Ballast factor not available. 2-Lamp
(8)
ballast will not operate 1-Lamp. For NYC rated product, see separate specification sheets.
(9)
For a complete listing of Fifthlight Technology products and other solutions from Cooper Controls, visit
(10)
www.coopercontrol.com.
0-10V ballast do not include DALI feature. Please select DALI ballast for use with
(11)
Fifth Light system.
Specification grade 0-10V dimming ballast are NEMA premium and CEE listed. They are
(12)
compatible with low mercury and energy saving lamps.
Specification Grade 0-10V ballast not offered in 3
(13)
or 4-lamp versions.
Standard 0-10V ballast not offered in 3 or 4-lamp versions.
Specifications & dimensions subject to change without notice. Consult your Cooper Lighting
Representative for availability and ordering information.
0-10V Dimming Ballasts (10)
5LTV5 =T5 0-10V Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 1.0 (13)
5LTVS5 =T5 0-10V Spec Grade Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 1.0 (11), (12)
5LTV5H =T5HO 0-10V Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 1.0 (13)
5LTVS5H =T5HO 0-10V Spec Grade Program Rapid
Start. Total Harmonic Distortion < 10%.
Ballast Factor 1.0 (11), (12)
Fifth Light DALI Ballasts (9)
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.
2GR5-228T5A
2GR5-254T5A
2GR5-428T5A
2GR5-454T5A
22 lbs.
22 lbs.
22 lbs.
22 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
ADF110892