Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
HID Downlights
6” ATH
T4/T6 Downlight
Ceramic Metal Halide Lamp
FEAT URES ORDERING INFORMATION NOTES
OPTICAL SYSTEM
• Self-flanged semi-specular or matte-diffuse anodized lower reflector. Patented
Bounding Ray™ Optical Principle design (U.S. Patent No. 5,800,050).
Minimum flange matches reflector finish.
• Interchangeable upper reflectors provide narrow, medium and wide distributions.
• 1/8”-thick softening lens eliminates beam striations and ensures maximum
efficiency. Provides required protective shielding.
• Optical system retained by self-aligning torsion support springs.
MECHANICAL SYSTEM
• 16-gauge galvanized steel construction; maximum 1-1/2” ceiling thickness.
• Telescopic mounting bars maximum of 32” and minimum of 15”, preinstalled, 4”
vertical adjustment.
• Toolless post-installation adjustments.
• Junction box capacity: 8 (4 in, 4 out) 12AWG rated for 90°C.
• Toolless re-lamp capability from above or below ceiling.
EXAMPLE: ATH T6 39MHC 6AR N LD 120
ELECTRICAL SYSTEM
• Toolless access door provides access to junction box and ballast through the aperture.
• G12 (T6), G8.5 (T4) or PGJ5 (T4T) base ceramic socket.
• Pre-wired, electronic, 120 or 277V ballast module is standard. Assembly can be
attached before or after mounting of mounting/plaster frame.
• Thermally activated insulation detector.
• 30 K lamp ships standards.
LISTING
• Fixtures are UL Listed for thru-branch wiring, non-IC recessed mounting and
damp locations. Listed and labeled to comply with Canadian standards.
WARRANTY
• 1-year limited warranty. Complete warranty terms located at
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
Series Lamp type Lamp wattage Aperture/Trim color Distribution Finish Voltage Ballas t
ATH T4T
T4
T6
1,2
3
4
20MHC
39MHC
70MHC
150MHC
6AR Clear
6
6BR
5
6PR Pewter
6WTR Wheat
Black
N Narrow
M Medium
W Wide
(blank) Semi-specular
LD Matte-diffuse
120
277
347
(blank) Electronic ballast
EMB Electromagnetic ballast
7
Options
9
SF Single fuse
8
QRS
Quartz restrike
8
QRSTD
Quartz restrike with time delay
TRW White painted flange
L/LP
Less lamp
10
RRL
RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access
above ceiling required.
CP Chicago plenum
TRBL Black painted flange
ORDERING NOTES
1. Philips Mini MasterColor® available in 20W or 39W, 120V only.
2. Available with electronic ballast and 120V only.
3. Not available in 150W.
4. Not available in 20W.
5. California Title 20 compliant.
ATH-6-OPEN
PAGE 1 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/09/14. Specifications subject to change without notice.
6. Not available with finishes.
7. Available with 70W and 150W electromagnetic ballast only.
8. Lamp included. Not available L/LP.
9. Not valid with GRS and GRSTD.
10. For compatible RELOC systems, refer to TECH-110.
6” ATH
Overlap Trim: 7-1/2 (19.1)
T4/T6 Downlight
Ceramic Metal Halide Lamp
DIMENSIONAL DATA
All dimensions are inches (centimeters) unless otherwise noted.
15-9/16
(39.5)
9-13/16
(24.9)
15-3/16
(38.6)
Aperture: 6-1/4 (15.9)
Ceiling Opening: 6-7/8 (17.5)
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/09/14. Specifications subject to change without notice.
ATH-6-OPEN
PAGE 2 OF 3
6” ATH
90°
0
1100
2200
3300
4400
5500
90°
0
11500
90°
0
1230
1640
2050
90°
0
1000
1500
2000
2500
3000
T4/T6 Downlight
Ceramic Metal Halide Lamp
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
ATH T6 70M 6 NARROW
80°
2300
4600
6900
9200
0° 10° 20° 30°
70°
60°
50°
40°
ATH T6 70M 6 MEDIUM
80°
70°
60°
50°
40°
0° 10° 20° 30°
CMH70/U/942/G12 LAMP, 6400 RATED LUMENS, 0.5 S/MH, TEST NO. LTL15371
From 0° AveLumens
0
11970
5
10682
5829
2151
671
138
8
3
1
0
0
936
1597
1012
436
119
9
4
2
1
15
25
35
45
55
65
75
85
90
Zone Lumens % Lamp
3545.9
0° - 30°
3982.2
0° - 40°
4110.2
0° - 60°
4115.9
0° - 90°
90° - 180°
0° - 180°
0.0
4115.9
*Efficiency
55.4
62.2
64.2
64.3
0.0
*64.3
pf
pc
80%70% 50%
pw
50%30% 50%30% 50%30%
1
.72
2
.68
3
.64
4
.61
5
.58
6
.56
7
.53
8
.51
9
.49
10
.47
20%
.71
.71
.66
.62
.58
.55
.52
.50
.48
.46
.44
.69
.67
.65
.64
.61
.60
.58
.58
.55
.55
.52
.53
.50
.51
.48
.49
.46
.47
.44
CMH70/U/942/G12 LAMP, 6400 RATED LUMENS, 0.8 S/MH, TEST NO. LTL15392
From 0° AveLumens
0
5828
5
5395
4744
2923
1405
274
15
4
2
1
0
500
1299
1340
875
251
14
5
2
1
15
25
35
45
55
65
75
85
90
Zone Lumens % Lamp
3138.7
0° - 30°
4013.8
0° - 40°
4278.5
0° - 60°
4286.5
0° - 90°
90° - 180°
0° - 180°
0.0
4286.5
*Efficiency
49.0
62.7
66.9
67.0
0.0
*67.0
pf
pc
80%70% 50%
pw
50%30% 50%30% 50%30%
1
.74
2
.69
3
.65
4
.61
5
.57
6
.54
7
.51
8
.48
9
.45
10
.43
20%
.73
.73
.67
.62
.57
.53
.50
.47
.44
.41
.39
.71
.68
.66
.64
.61
.60
.57
.56
.53
.53
.49
.50
.46
.47
.44
.45
.41
.43
.39
50% beam angle
27.1°
Beam
diameter
2.6
3.6
4.6
5.5
6.5
50% beam angle
43.3°
Beam
diameter
4.4
6.0
7.5
9.1
10.7
.68
.67
.65
.63
.62
.60
.59
.57
.57
.54
.54
.52
.52
.49
.50
.47
.48
.45
.46
.44
.70
.69
.66
.64
.62
.60
.59
.56
.55
.52
.52
.49
.49
.46
.47
.43
.44
.41
.42
.39
Mount
height
10
12
14
16
Mount
height
8
10
12
14
16
8
Inital fc
at be am
center
395.7
212.8
132.6
90.5
65.7
Inital fc
at be am
center
192.7
103.6
64.6
44.1
32.0
fc at
beam
edge
197.9
106.4
66.3
45.3
32.8
fc at
beam
edge
96.3
51.8
32.3
22.0
16.0
10% beam angle
54.1°
fc at
beam
Beam
edge
diameter
39.6
5.6
21.3
7.7
13.3
9.7
11.8
13.8
10% beam angle
74.5°
fc at
beam
Beam
edge
diameter
19.3
8.4
10.4
11.4
6.5
14.4
4.4
17.5
3.2
20.5
9.0
6.6
ATH T6 70M 6 WIDE
500
0° 10° 20° 30°
80°
70°
60°
50°
40°
ATH T6 150M 6 NARROW
80°
4100
8200
0
0
0
0° 10° 20° 30°
70°
60°
50°
40°
CMH70/T/U/942/G12 LAMP, 6400 RATED LUMENS, 1.2 S/MH, TEST NO. LTL15179
90° - 180°
0° - 180°
27
12
6
2
Zone Lumens % Lamp
0° - 30°
0° - 40°
0° - 60°
0° - 90°
*Efficiency
2383.4
3838.3
4278.6
4298.9
0.0
4298.9
37.2
60.0
66.9
67.2
*67.2
0.0
From 0° AveLumens
0
2966
5
2783
2726
2957
2448
427
27
12
6
1
0
262
773
1348
1455
413
15
25
35
45
55
65
75
85
90
CMH150/T/U/942/G12 LAMP, 13000 RATED LUMENS, 0.5 S/MH, TEST NO. LTL15387
From 0° AveLumens
0
20975
5
18872
15
11012
25
4738
35
1590
45
313
55
21
65
8
75
5
85
2
90
0
Zone Lumens % Lamp
0° - 30°
1666
0° - 40°
3023
0° - 60°
2192
0° - 90°
1025
90° - 180°
270
0° - 180°
22
8
4
1
6881.7
7907.0
8198.8
8212.5
0.0
8212.5
*Efficiency
52.9
60.8
63.1
63.2
0.0
*63.2
PHOTOMETRY NOTES
• Tested to current IES and NEMA standards under stabilized laboratory condition.
• Actual performance may differ as a result of end-user environment and application.
• Consult factory or IES file for microgroove baffle, black cone or other photometric reports.
ATH-6-OPEN
PAGE 3 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2006-2014 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 01/09/14. Specifications subject to change without notice.
pf
pc
80%70% 50%
pw
50%30% 50%30% 50%30%
1
.74
2
.68
3
.63
4
.58
5
.54
6
.50
7
.46
8
.43
9
.40
10
.37
pf
pc
pw
50% 30% 50% 30% 50% 30%
1
.71
2
.66
3
.63
4
.59
5
.56
6
.54
7
.51
8
.49
9
.47
10
.45
20%
.72
.72
.65
.67
.59
.62
.54
.57
.49
.53
.45
.49
.42
.46
.38
.43
.36
.40
.33
.37
80% 70% 50%
20%
.69
.69
.64
.65
.60
.62
.56
.59
.53
.56
.51
.53
.48
.51
.46
.49
.44
.47
.42
.45
50% beam angle
67.7°
Beam
diameter
7.4
10.1
12.7
15.4
18.1
50% beam angle
28.6°
Beam
diameter
2.8
3.8
4.8
5.9
6.9
.71
.70
.64
.59
.53
.49
.45
.41
.38
.35
.33
.68
.65
.63
.60
.57
.56
.52
.52
.48
.48
.44
.45
.41
.42
.38
.39
.35
.36
.33
.68
.67
.63
.59
.56
.53
.50
.48
.46
.44
.42
.66
.63
.62
.60
.58
.57
.55
.55
.52
.52
.50
.50
.47
.48
.45
.46
.43
.44
.41
Mount
height
8
10
12
14
16
Mount
height
8
10
12
14
16
Inital fc
at be am
center
98.0
52.7
32.9
22.4
16.3
Inital fc
at be am
center
693.4
372.9
232.4
158.6
115.1
fc at
beam
edge
49.0
26.4
16.4
11.2
8.1
fc at
beam
edge
346.8
186.5
116.2
79.3
57.6
10% beam angle
86.2°
fc at
beam
Beam
edge
diameter
diameter
9.8
10.3
5.3
14.0
3.3
17.8
2.2
21.5
1.6
25.3
10% beam angle
58.0°
fc at
beam
Beam
edge
69.3
6.1
37.3
8.3
23.2
10.5
15.9
12.8
11.5
15.0
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