METALUX
®
DESCRIPTION
GC8 is a premium grade specification lensed troffer series. This
innovative, high quality luminaire is dedicated to the latest T8 lamp and
micro electronic ballast technology for optimal performance and energy
efficiency. The GC8 is compatible with all of today’s popular ceiling
systems and is available with a number of options and accessories for
application versatility.
Catalog #
The GC8 series features efficiency, quality and performance. The series
is an excellent choice for commercial office spaces, schools, hospitals
or retail merchandising areas.
Prepared by
Type
Project
Date
Comments
SPECIFICATION FEATURES
Construction
Electrical
Frame/Shielding
Rigid housing is die formed of
code gauge prime cold rolled
steel and features full length dieformed stiffeners for added
strength. Side flanges are
hemmed. Innovative design
provides superior lens brightness
uniformity and visual comfort.
Micro ballast cover*** reduces
ballst shadow for superior lens
brightness uniformity and is
easily removed without tools. Die
formed captive lampholder
brackets fully enclose
lampholder wiring permitting
easy lampholder replacement.
Heavy endplates are securely
attached with interlocking tabs
and screws. Four auxiliary fixture
end suspension points provided.
KOs for continuous row wiring.
Endplates have integral Grid-lock
feature for safety and
convenience.
Ballasts are CBM/ETL Class “P” and
are positively secured by mounting
bolts. Pressure lock lampholders.
Biaxial models use 2G11 base
lampholders with double-edge wiping
action pressure-lock contacts and
horizontally oriented lamp support
clips.UL/CUL listed. Suitable for damp
locations.**
Die formed, heavy gauge, flat
steel door with reinforced mitered
corners and baked white enamel
finish. Flat and regressed
aluminum doors also available.
Positive light seals. Light stabilized
100% virgin acrylic prismatic lens.
Standard #12 pattern. Numerous
additional shielding options
available.
Finish
Multistage, iron phosphate
pretreatment ensures maximum
bonding and rust inhibition.
Housing and ballast cover finished
with new 90% reflective matte white
enamel for superior performance.
“PAF” Painted After Fabrication
option also available.
Hinging/Latching
Positive Cam latch with baked white
enamel finish. Safety-lock T-hinges
allow hinging and latching either side.
2GC8
317
3U1-5/8
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.
2' X 2' TROFFER
3 LAMPS
Specification T8 Troffer
New York City Rated
3-3/4"
[95mm]
ENERGY DATA
Input Watts:
EB Ballast & STD Lamps
317 (56), 3U1-5/8 (88)
23-3/4" [603mm]
maximum overall nominal depth
†
ES Ballast & STD Lamps
317 (68), 3U1-5/8 (105)
LAMP CONFIGURATIONS
MOUNTING DATA
3-3/4" [95mm]
3-3/4" [95mm]
X=5-3/8"
[137mm]
23-3/4"
[603mm]
Luminaire Efficacy Rating
LER = FL-47
Catalog Number: 2GC8-317
3U1-5/8
317
1-1/2"
[38mm]
X
X=1-5/8"
[41mm]
X
23-3/4" [603mm]
X
X
X
5-3/8"
5-3/8"
[137mm] [137mm]
23-3/4" [603mm]
Yearly Cost of 1000 lumens,
3000 hrs at .08 KWH = $5.08
DOOR FRAMES
GC8
F lat, White
Steel
2-3/4" [70mm]
5-3/4" [146mm]
GC8FA
F lat, E xtruded
White Alum inum
GC8RA
D eep, R egressed,
E xtruded Natural Alum inum
*Reference the lamp/ballast data in the
Technical Section for specific lamp/ballast
requirements.
23-15/16" [610mm]
**Consult Pre Sales Technical Support.
***Full sized ballast cover for biaxial lamps
and emergency option.
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
F
LAMPS CONTAIN MERCURY. DISPOSE ACCORDING TO
LOCAL, STATE OR FEDERAL LAWS
Safe and convenient means of
disconnecting power.
(Verify compatibility/ consult
factory.)
COOPER LIGHTING
ADF111080
NY2GC8
PHOTOMETRICS
2GC8-317A
Electronic Ballast
(3) F17T8/TL841/6
lamps
1300 lumens
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.4 x
mounting height
Efficiency 77.1%
Test Report:
2GC8317A.IES
LER = FL-47
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $5.08
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
1143
1141
1127
1102
1067
1020
959
882
788
675
550
430
330
251
187
135
100
59
0
Across ⊥
1143
1144
1142
1137
1125
1100
1061
1012
949
856
725
562
405
285
207
164
129
79
0
45°
1143
1140
1133
1119
1096
1063
1014
949
867
761
638
502
365
244
156
109
90
58
0
Coefficients of Utilization
rc
rw
RCR
0
1
2
3
4
5
6
7
8
9
10
92
81
71
63
56
51
46
41
38
35
32
92
78
66
57
50
44
39
35
32
29
26
92
75
62
52
45
39
34
30
27
24
22
90
82
75
69
63
58
54
50
47
44
41
90
79
70
62
55
50
45
41
37
34
32
90
76
65
56
49
43
39
35
31
28
26
90
74
61
52
45
39
34
30
27
24
22
Zonal Lumen Summary
Zone
0-30
0-40
0-60
0-90
0-180
Lumens
914
1506
2536
3007
3007
%Lamp
23.4
38.6
65.0
77.1
77.1
Candela
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Along II
1965
1956
1922
1866
1794
1703
1580
1431
1256
1050
827
654
506
386
279
212
155
83
0
Across ⊥
1965
1968
1970
1970
1961
1923
1855
1754
1590
1356
1075
784
553
398
314
263
200
104
0
45°
1965
1962
1945
1916
1878
1815
1726
1606
1446
1228
1008
754
485
308
196
170
153
85
0
Coefficients of Utilization
Effective floor cavity reflectance
80%
70%
70 50 30 10
70 50 30 10
92
84
77
71
65
60
56
52
48
45
42
2GC8-2BX40A
Electronic Ballast
F40BX/SPX35/IS
lamps
3150 lumens
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.4 x
mounting height
Efficiency 77.9%
Test Report
#ITL50232
LER = FL-65
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.70
Candela
%Fixture
30.4
50.1
84.3
100.0
100.0
20%
50%
50 30 10
30%
50 30 10
50
86
76
67
60
53
48
44
40
36
34
31
82
73
65
58
52
47
42
39
35
33
30
79
70
62
56
50
45
41
38
35
32
30
86
73
63
55
48
43
38
34
31
28
26
86
71
60
51
44
38
34
30
27
24
22
82
71
61
53
47
42
37
34
30
28
25
82
69
59
50
43
38
33
30
27
24
22
10%
30 10
79
69
60
52
46
41
37
33
30
27
25
79
67
57
49
43
38
33
30
27
24
22
0%
0
77
66
56
48
41
36
32
28
25
23
21
Typical VCP Percentages
Room Size (Ft.)
20 x 20
30 x 30
30 x 60
60 x 30
60 x 60
Height Along
8.5’
10.0’
67
71
61
64
51
55
62
66
52
55
Height Across
8.5’
10.0’
63
67
57
61
44
49
60
64
47
50
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
93
85
78
72
66
61
57
53
49
46
43
93
82
72
64
58
52
47
43
39
36
33
93
79
68
59
51
45
40
36
33
30
27
93
76
63
54
46
40
36
32
28
26
23
91
83
76
70
65
60
55
51
48
45
42
91
80
71
63
57
51
46
42
39
36
33
91
77
67
58
51
45
40
36
33
30
27
91
75
63
53
46
40
35
32
28
26
23
20%
50%
50 30 10
30%
50 30 10
50
87
77
68
61
55
49
45
41
38
35
32
83
74
66
59
53
48
44
40
37
34
31
79
71
63
57
51
46
42
39
36
33
31
87
75
65
56
50
44
39
35
32
29
27
87
73
61
52
45
40
35
31
28
25
23
83
72
63
55
48
43
39
35
32
29
27
83
70
60
52
45
39
35
31
28
25
23
Zonal Lumen Summary
Typical VCP Percentages
Zone
0-30
0-40
0-60
0-90
0-180
Room Size (Ft.)
20 x 20
30 x 30
30 x 60
60 x 30
60 x 60
Lumens
1574
2582
4204
4906
4906
%Lamp
25.0
41.0
66.7
77.9
77.9
%Fixture
32.1
52.6
85.7
100.0
100.0
10%
30 10
79
70
61
54
47
42
38
34
31
29
26
Height Along
8.5’
10.0’
57
61
49
54
40
44
51
55
41
44
79
68
59
51
44
39
35
31
28
25
23
0%
0
78
67
57
49
43
37
33
29
26
24
22
Height Across
8.5’
10.0’
54
59
46
51
36
39
49
54
37
40
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
2/24/16
ADF111080
NY2GC8
ORDERING INFORMATION
SAMPLE NUMBER: 2GC8-317A-120V-EB81-U
Rating
NY=New York
City Rated
(20 Gauge
Riveted End
Plates)
Width
2=2' Width
Trim Type
G=Grid/Lay-in (1)
(Standard)
G=Concealed T
G=Slot Grid
F=Flange Trim
Series
C8=Specification T8 Troffer
Standard=Flat White Steel Door
(Leave Blank)
FA=Flush White Extruded Aluminum
c/w Spring Latch
RA=Regressed White Extruded
Aluminum
FAN=Flush Natural Anodized
Extruded Aluminum
RAN=Regressed Natural Anodized
Extruded Aluminum
FAB=Flush Black Extruded Aluminum
RAB=Regressed Black Extruded
Aluminum
(1)
Number of
Lamps (2)
3 Lamps
(Not included)
Wattage
17=17W T8 (24")
U1-5/8=31W T8 (24") (6)
Shielding
A=#12 Acrylic Pattern
A125=#12 Pattern Acrylic (.125"
Thickness)
A19/156=#19 Pattern Acrylic (.156"
Thickness)
DA=Dropped Dish Matte White
Acrylic
IMA48=Injection Molded Acrylic
(.150" Thickness)
PB1S=1/2" x 1/2" x 1/2" Silver
Parabolic Louver (Styrene)
Voltage (2)
120V=120 Volt
277V=277 Volt
347V=347 Volt
UNV=Universal Voltage 120-277 (3
Options
GL=Single Element Fuse
GM=Double Element Fuse
Lamps=Lamps Installed
Flex=Flex Installed
EL=Emergency Installed
(2)
NOTES: An EQ Grid Clip is recommended for all 9/16" ceiling systems. Standard off-center ballast
(3)
compartment on 3-lamp fixtures. Not available when specifying emergencies, voltage must be specific.
(4)
(5)
Consult Pre Sales Technical Support. For a complete listing of Fifthlight Technology products and other solutions
(6)
from Cooper Controls, visit www.coopercontrol.com. Fifthlight ballast option not available.
Specifications & dimensions subject to change without notice. Consult your Cooper Lighting Representative for
availability and ordering information.
Ballast Type
EB8 =T8 Electronic Start.
Total Harmonic Distortion < 10%
EB8 /PLUS= T8 Electronic Start.
Total Harmonic Distortion < 10%.
High Ballast Factor > 1.15.
ER8 = T8 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%
High Performance T8 Ballasts
HB8 =T8 Electronic Instant Start.
Total Harmonic Distortion < 10%.
Standard Ballast Factor .86 – .88
HB8 L=T8 Electronic Instant Start.
Total Harmonic Distortion < 10%.
Low Ballast Factor .77 – .82
HB8 N=T8 Electronic Instant Start.
Total Harmonic Distortion < 10%.
Normal Ballast Factor 1.0
HB8 H=T8 Electronic Instant Start.
Total Harmonic Distortion < 10%.
High Ballast Factor 1.15 – 1.20
HR8 T8 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Standard Ballast Factor .86 – .88
HR8 DIM=T8 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Step Dimming. Ballast Factor .88
HR8 L=T8 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
Low Ballast Factor .71 – .79
HR8 H=T8 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%.
High Ballast Factor 1.15 – 1.20
Options
PAF=Painted After
Fabrication
FR=Fire Rated Label
MEP=Modified End Plate
REP=Riveted End Plates
LAO=Less Access
Opening (4)
RLS=Rotor-Lock Socket
(T8 Lamps Only)
Packaging
U=Unit Pack
PAL=Job Pack, out of carton
PALC=Job Pack, in carton
ACCESSORIES
EQ-CLIP-U=T-BAR Safety
Earthquake Clips (1)
Fifth Light DALI Ballasts (5)
5LT8 =T8 DALI Program Rapid Start.
Total Harmonic Distortion < 0%.
Ballast Factor 1.0
Number of Ballasts
1=1 Ballast
2=2 Ballasts
3=3 Ballasts
SHIPPING INFORMATION
Catalog No.
Wt.
NY2GC8-3U1-5/8A
NY2GC8-317A
19 lbs.
19 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
2/24/16
ADF111080