Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
HID Downlights
4” 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 T4T 20MHC 4AR N LD 120
ELECTRICAL SYSTEM
• Toolless access door provides access to junction box and ballast through the aperture.
• G12, G8.5 or PGJ5 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 standard.
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
20MHC
39MHC
70MHC
4AR Clear
4
4BR
Black
4PR Pewter
N Narrow
M Medium
W Wide
(blank) Semi-specular
LD Matte-diffuse
120
277
347
(blank) Electronic ballast
EMB Electromagnetic ballast
5
4WTR Wheat
Options
6
SF Single fuse
TRW White painted flange
TRBL Black painted flange
L/LP
Less lamp
7
RRC
RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access
above ceiling required.
CP Chicago plenum
ORDERING NOTES
1. Philips Mini MasterColor® available in 20W or 39W, 120V only.
2. Available with electronic ballast and 120V only.
3. Available in 39W and 70W only.
4. Not available with finishes.
ATH-4-OPEN
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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. 03/24/14. Specifications subject to change without notice.
5. Available with 70W electromagnetic ballast only.
6. Not valid with GRS and GRSTD.
7. For compatible RELOC systems, refer to TECH-110.
4” ATH
Overlap Trim: 5-7/16 (3.8)
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: 4-3/8 (11.1)
Ceiling Opening: 5-1/16 (12.9)
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. 03/24/14. Specifications subject to change without notice.
ATH-4-OPEN
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