COOPER LIGHTING - METALUX
®
DESCRIPTION
The GR5 is a T5-dedicated 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
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 faceplate
with perforated sections for
uniform surface brightness.
Housing and faceplate
assemblies incorporate full length
mechanical light traps and
positive end light seals.
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 cam action steel
latches and safety lock T-hinges
provide secure, high quality door or
faceplate 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.
GR5
1' X 4' TROFFER
1 OR 2 LAMP
Specification T5 Troffer
3-3/4"
[95mm]
ENERGY DATA
11-3/4" [298mm]
Input Watts:
EB Ballast & STD Lamps
128T5 (34)
228T5 (68)
MOUNTING DATA
DOOR FRAMES
Access Plate
7/8" [22mm] K.O. (2)
1-1/2"
[38mm]
7/8" [22mm] K.O. (2)
EB Ballast & HO Lamps
154T5 (54)
254T5 (106)
GR5
F lat, White
Steel
Luminaire Efficacy Rating
LER =50
Catalog Number: GR5-154T5
11-3/4"
[298mm]
5-3/4" [146mm]
3-1/2" [89mm]
Yearly Cost of 1000 lumens,
3000 hrs at .08 KWH = $4.76
8-7/32" [209mm]
48" [1219mm]
*Standard G (Grid) Type Fixtures can be
field converted by adding trim kits. See
Compatibility Section or Consult Factory.
LAMP CONFIGURATIONS
1 LAMP
2 LAMP
3-3/4" [95mm]
**Reference the lamp/ballast data in the
Technical Section for specific lamp/ballast
requirements.
3-3/4" [95mm]
11-3/4"
[298mm]
11-3/4"
[298mm]
***Order FCS-14W-U Flange Kit for
installation in drywall ceiling. See options
and accessories compatibility section.
CEILING COMPATIBILITY
G
Grid/Lay-in
Standard
G
Concealed T
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***
(Verify compatibility/ consult
factory.)
COOPER LIGHTING
LAMPS CONTAIN MERCURY. DISPOSE ACCORDING TO LOCAL,
STATE OR FEDERAL LAWS
Safe and convenient means of
disconnecting power.
ADF121538
GR5
PHOTOMETRICS
Coefficients of Utilization
rc
rw
RCR
0
1
2
3
4
5
6
7
8
9
10
⊥
||
GR5-128T5A
Electronic Ballast
F28T5/835 lamps
2600 lumens
Effective floor cavity reflectance
80%
70%
70 50 30 10
70 50 30 10
99
91
83
76
70
64
59
55
99
87
76
67
60
54
49
44
99
83
71
61
53
47
41
37
99
80
66
56
48
41
36
32
51 40 33 28
48 37 30 26
45 34 28 23
97
88
81
74
68
62
58
54
Zone
0-30
0-40
0-60
0-90
0-180
Efficiency 83.1%
Test Report:
GR5-128T5-A.IES
20%
50%
50 30 10
30%
50 30 10
10%
50 30 10
0%
0
88
78
69
61
55
50
45
41
97
85
75
66
59
53
48
43
97
82
70
60
52
46
41
37
97
79
66
55
47
41
36
32
92
81
72
64
57
51
46
42
92
79
68
59
51
45
40
36
50 40
47 36
44 34
33
30
27
28
26
23
39
35
33
33 28
30 25
27 23
Zonal Lumen Summary
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.5 x
mounting height
Candela
Lumens
%Lamp
%Fixture
626
1045
1804
2160
2160
24.1
40.2
69.4
83.1
83.1
29.0
48.4
83.5
100.0
100.0
92
77
64
54
47
40
36
32
88
76
66
57
50
44
39
35
88
74
63
53
46
40
35
31
85
75
67
59
53
48
44
40
85
74
64
56
49
43
39
35
85
72
61
52
45
40
35
31
83
70
59
51
44
38
33
29
38 32
35 29
32 27
28
25
23
37 32 28
34 29 25
31 26 23
26
24
21
Luminance Data
Angle
in Deg
45
55
65
75
85
Average
0-Deg
cd/sm
2307
1876
Average
45-Deg
cd/sm
2681
2360
Average
90-Deg
cd/sm
3049
2516
1492
1563
2163
1452
1086
1888
1833
1510
2045
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
776
773
764
748
722
687
644
595
541
476
396
314
244
184
144
118
91
55
0
Across ⊥
776
774
775
776
776
773
762
743
706
629
525
421
305
226
159
114
87
52
0
45°
776
774
770
762
750
732
709
676
626
553
480
395
279
179
111
82
73
48
0
LER= 65
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH= $3.69
ORDERING INFORMATION
SAMPLE NUMBER: GR5-228T5A-UNV-EBT2-U
Width
Blank=1'
Width
Number of
Lamps
1=1 Lamp
2=2 Lamps
Trim Type
G=Grid/Lay-in
(Standard)
(Not included)
Series
R5=General
Purpose T5
Commercial
Troffer (1)
Lens or Louver
A=#12 Pattern Acrylic
A125=#12 Pattern Acrylic
(.125" Thickness)
Wattage
28T5=28W T5 (48")
54T5=54W T5 HO (48")
Voltage
120V=120 Volt
277V=277 Volt
347V=347 Volt
UNV=Universal
Voltage 120-277 (2)
Options
Lamps=Lamps Installed
GL=Single Element Fuse
GM=Double Element Fuse
EL=Emergency Installed
NOTES: (1) An EQ Grid Clip is recommended for all 9/16" ceiling systems. Four required per fixture. (2) Not available when
(3)
specifying emergencies, voltage must be specific. For a complete listing of Fifthlight Technology products and other
(4)
solutions from Cooper Controls, visit www.coopercontrol.com. 0-10V ballast do not include DALI feature. Please select DALI
(5)
ballast for use with Fifth Light system. Specification grade 0-10V dimming ballast are NEMA premium and CEE listed. They are
compatible with low mercury and energy saving lamps.
Specifications & dimensions subject to change without notice. Consult your Cooper Lighting Representative for availability
and ordering information.
Ballast Type
EBT =T5 or T5HO Electronic Program
Rapid Start. Total Harmonic
Distortion < 10%. Standard Ballast
Factor=1.0
Options
RIF1=Radio
Interference
Suppressor
0-10V Dimming Ballasts (4)
5LTV5 =T5 0-10V Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 1.0
5LTVS5 =T5 0-10V Spec Grade Program
Rapid Start. Total Harmonic
Distortion < 10%.
Ballast Factor 1.0 (5)
5LTV5H =T5HO 0-10V Program Rapid
Start. Total Harmonic Distortion
< 10%. Ballast Factor 1.0
5LTVS5H =T5HO 0-10V Spec Grade
Program Rapid Start. Total
Harmonic Distortion < 10%.
Ballast Factor 1.0 (5)
Packaging
U=Unit Pack
Accessories
EQ=T-BAR Safety
Earthquake Clips(1)
Fifth Light DALI Ballasts (3)
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
SHIPPING INFORMATION
Catalog No.
Wt.
GR5-154
18 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
ADF121538