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 die-formed
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 Gridlock feature for safety and
convenience.
Ballasts are CBM/ETL Class “P”
and are positively secured by
mounting bolts. Roto-lock
lampholders ensure positive lamp
retention. 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 Thinges allow hinging and latching
either side.
2GC8
228T8
232
428T8
432
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 4' TROFFER
2 OR 4 LAMP
Specification T8 Troffer
New York City Rated
3-3/4"
[95mm]
23-3/4" [603mm]
ENERGY DATA
maximum overall nominal depth
†
Input Watts:
DOOR FRAMES
MOUNTING DATA
GC8
F lat, White
Steel
1-1/2"
[38mm]
GC8FA
F lat, E xtruded
White Alum inum
GC8RA
D eep, R egressed,
E xtruded Natural Alum inum
1-1/2"
[38mm]
Luminaire Efficacy Rating
LER = FL-78
Catalog Number: 2GC8-232A
23-3/4"
[603mm]
LAMP CONFIGURATIONS
1"
[26mm]
2 LAMP
Yearly Cost of 1000 lumens,
3000 hrs at .08 KWH = $3.07
3-3/4" [95mm]
3-7/8" [98mm]
5-3/4" [146mm]
10-3/4"
[274mm]
23-3/4" [603mm]
47-15/16" [1218mm]
*Reference the lamp/ballast data in the
Technical Section for specific lamp/ballast
requirements.
4 LAMP
3-3/4" [95mm]
X=4-3/16"
[107mm]
Y=5-3/8"
[137mm]
HB Ballast & STD Lamps
228T8 (48)
232 (53)
428T8 (96)
432 (107)
**Consult Pre Sales Technical Support.
X
Y
X
***Full sized ballast cover for biaxial lamps
and emergency option.
23-3/4" [603mm]
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
ADF111077
NY2GC8 T8
PHOTOMETRICS
2GC8-232A
Electronic Ballast
(2) FO32/35K lamps
2800 lumens
Spacing criterion:
(II) 1.2 x mounting
height, ( ) 1.3 x
mounting height
Efficiency 84.6%
Test Report:
2GC8232A.pdf
LER = FL-78
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.07
||
Candela
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
45o
1811
1807
1791
1762
1719
1660
1583
1477
1337
1174
1002
814
605
407
256
172
136
83
0
Along II
1811
1803
1780
1743
1689
1614
1516
1397
1251
1076
894
724
565
420
305
222
162
93
0
Across
1811
1812
1800
1780
1747
1699
1638
1561
1451
1288
1088
874
661
478
341
260
199
119
0
C o e f fi c i e n t s o f U t i l i z a t i o n
rc
rw
RCR
0
1
2
3
4
5
6
7
8
9
10
101
85
73
63
55
48
43
38
34
31
29
101
82
68
57
49
43
37
33
30
27
24
98
90
83
76
69
64
59
55
51
48
45
98
87
77
68
61
54
49
45
41
38
35
98
84
71
62
54
47
42
38
34
31
28
98
81
67
57
49
42
37
33
30
27
24
Zonal Lumen Summary
Zone
0-30
0-40
0-60
0-90
0-180
Lumens
1435
2358
3979
4739
4739
%Lamp
25.6
42.1
71.1
84.6
84.6
⊥
||
Candela
Angle
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
45o
3460
3452
3422
3367
3282
3163
3003
2789
2510
2184
1843
1478
1083
719
449
315
259
159
0
Along II
3460
3444
3402
3331
3228
3085
2899
2670
2392
2057
1701
1370
1059
783
568
419
316
183
0
Across ⊥
3460
3461
3441
3401
3329
3222
3079
2904
2677
2369
1986
1582
1192
849
621
491
381
226
0
C o e f fi c i e n t s o f U t i l i z a t i o n
Effective floor cavity reflectance
80%
70%
70 50 30 10
70 50 30 10
101 101
93 89
85 78
78 69
71 62
66 55
61 50
57 45
53 42
49 38
46 35
2GC8-432A
Electronic Ballast
(4) FO32/35K lamps
2800 lumens
Spacing criterion:
(II) 1.2 x mounting
height, (⊥) 1.3 x
mounting height
Efficiency 79.2%
Test Report:
2GC8432A.IES
LER = FL-64
Yearly Cost of 1000
lumens, 3000 hrs at
.08 KWH = $3.75
%Fixture
30.3
49.8
84.0
100.0
100.0
20%
50%
50 30 10
30%
50 30 10
50
10%
30 10
0%
0
94
83
74
65
58
53
48
43
40
37
34
90
80
71
63
56
51
46
42
39
36
33
86
77
68
61
55
49
45
41
38
35
32
86
75
65
57
50
45
40
36
33
30
27
85
72
61
52
45
39
35
31
27
25
22
94
81
69
60
53
47
41
37
34
31
28
94
78
66
56
48
42
37
33
29
27
24
90
78
67
59
51
46
41
37
33
30
28
90
76
64
55
47
41
37
33
29
26
24
86
74
63
54
47
41
36
32
29
26
24
Ty p i c a l VC P Pe r c e n t a g e s
Room Size (Ft.)
20 x 20
30 x 30
30 x 60
60 x 30
60 x 60
Height Along
8.5'
10.0'
71
75
66
70
58
61
68
72
59
62
Height Across
8.5'
10.0'
68
72
63
67
53
57
67
70
55
58
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
94
87
79
73
67
62
57
53
49
46
43
94
83
73
65
58
52
47
43
39
36
33
94
80
68
59
51
45
40
36
33
30
27
94
77
64
54
46
40
35
31
28
25
23
92
84
77
71
65
60
56
52
48
45
42
92
81
72
64
57
51
46
42
39
35
33
92
78
67
58
51
45
40
36
32
29
27
20%
92
76
63
53
46
40
35
31
28
25
23
50%
50 30 10
30%
50 30 10
50
88
78
69
61
55
49
45
41
38
35
32
84
75
66
59
53
48
44
40
37
34
31
81
72
64
57
51
46
42
39
36
33
31
88
76
65
56
50
44
39
35
32
29
27
88
73
62
52
45
39
35
31
28
25
23
84
73
63
55
48
43
38
35
31
29
26
84
71
60
52
45
39
35
31
28
25
23
Zonal Lumen Summary
Ty p i c a l VC P Pe r c e n t a g e s
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
2735
4476
7474
8865
8865
%Lamp
24.4
40.0
66.7
79.2
79.2
%Fixture
30.9
50.5
84.3
100.0
100.0
10%
30 10
81
70
61
54
47
42
38
34
31
28
26
Height Along
8.5'
10.0'
58
62
52
56
42
46
54
58
43
47
81
69
59
51
44
39
34
31
27
25
23
0%
0
79
67
57
49
42
37
33
29
26
23
21
Height Across
8.5'
10.0'
56
60
49
53
38
42
52
57
40
43
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
ADF111077
NY2GC8 T8
ORDERING INFORMATION
SAMPLE NUMBER: NY2GC8-232A-120V-HB81-U
Rating
NY=New York
City Rated
(20 Gauge
Riveted End
Plates)
Width
2=2' Width
Trim Type
G=Grid/Lay-in (Standard) (1)
G=Concealed T
G=Slot Grid
F=Flange Trim
Series
C8=Specification T8 Troffer
Door Frame
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 or 4 Lamps
(Not included)
Wattage (Length)
28T8=28W T8 (48")
32=32W T8 (48")(5)
Shielding
A=#12 Acrylic Pattern
A125=#12 Acrylic Pattern
(.125" Thickness)
A19/156=#19 Acrylic Pattern
(.156" Thickness)
DA=Dropped Dish - Matte
White Acrylic
IMA 48=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. Products also available in non-US
(3)
voltages and frequencies for international markets. Not available when specifying emergencies, voltage must
(4)
be specific. For a complete listing of Fifthlight Technology products and other solutions from Cooper Controls, visit
(5)
(6)
www.coopercontrol.com. Ballast Factor is 0.88 for 4 lamp 32W T8 fixtures. 0-10V ballast do not include DALI feature.
(7)
Please select DALI ballast for use with Fifth Light system. Specification grade 0-10V dimming ballast are NEMA
(8)
premium and CEE listed. They are compatible with low mercury and energy saving lamps. Specification Grade 0-10V
(9)
(10)
ballast not offered in 3 or 4-lamp versions. Standard 0-10V ballast not available for 28W T8 lamps.
Voltage must be
specified for Standard 0-10V 32W 3 and 4-lamp ballast. 4-lamp ballast versions must be 277V.
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
FR=Fire Rated Label
MEP=Modified End Plates
PAF=Painted After
Fabrication
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)
0-10V Dimming Ballasts (6)
5LTV8 =T8 0-10V Program Rapid Start.
Total Harmonic Distortion < 10%.
Ballast Factor 0.87 (9), (10)
5LTVS8 =T8 0-10V Spec Grade Program
Rapid Start. Total Harmonic
Distortion < 10%.
Ballast Factor 0.87 (7), (8)
Fifth Light DALI Ballasts (4)
5LT8 =T8 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.
NY2GC8-228T8A
NY2GC8-232A
NY2GC8-428T8A
NY2GC8-432A
29 lbs.
29 lbs.
32 lbs.
32 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
ADF111077