Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
HID Downlights
12” AH
Open Reflector
Metal Halide Lamp
FEAT URES ORDERING INFORMATION
OPTICAL SYSTEM
• Self-flanged semi-specular or matte-diffuse reflector. Patented Bounding
Ray™ Optical Principle design (U.S. Patent No. 5,800,050). Minimum flange
matches reflector finish.
• Baffle/cone – Semi-specular clear upper reflector. Microgroove baffle with white
painted flange or specular black cone with flange that matches cone finish.
MECHANICAL SYSTEM
• 16-gauge galvanized steel construction; maximum 7/8” 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.
ELECTRICAL SYSTEM
• Die-cast aluminum lampholder housing.
• Mogul-base porcelain socket with nickel-plated screw shell.
EXAMPLE: AH 250M 12AR 120 SCWA TRW
Series Wattage/Lamp
AH
Metal halide
175M
250M
Color-corrected metal halide
150MHC
250MHC
1
2
Aperture/Trim color Finish Lens type Voltage Ballast
12AR Clear
12PR Pewter
12WTR Wheat
3
12MB
12WB
12BC
3
3
Black baffle
White baffle
Black cone
(blank) Semi-specular
LD Matte-diffuse
• Prewired, encased-and-potted, 120/277V (pulse-start) or 120/347V (probestart) ballast tray module. Module can be attached before or after mounting of
mounting/plaster frame.
• Metal halide: 150MHC is only available with HEB electronic ballast. Pulse-start
ballast module (SCWA) must be specified for use with 175W and above.
• Thermally activated insulation detector.
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
4
(blank) Clear glass lens
T73 Tempered
prismatic lens
120
277
347
(blank)
SCWA
HEB
Probe start
5
Pulse start
6
Electronic
Options
7
QRS
Quartz restrike system
7
QRSTD
Quartz restrike system with time delay
8
EC
Emergency circuit
SF Single fuse
TRW White painted flange
TRBL Black painted flange
WLP With lamp (shipped separately)
9
RRL
RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access
above ceiling required.
ACCESSORIES order as separate catalog numbers (shipped separately)
SCA12 Sloped ceiling adapter. Degree of slope must be specified (10D, 15D, 20D, 25D, 30D). Ex: SCA12 10D
CTA12 Ceiling thickness adapter (extends mounting frame to accommodate ceiling thickness up to 2”)
AH-12-OPEN
PAGE 1 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/01/13. Specifications subject to change without notice.
12” AH
Overlap trim:12-11/16(32.2)
)
(48.9)
Open Reflector
Metal Halide Lamp
DIMENSIONAL DATA ELECTRICAL NOTES
All dimensions are inches (centimeters) unless otherwise noted.
19-1/4
23-3/4 (60.3)
ENERGY
(Calculated in accordance eith NEMA standard LE-5A)
Aperture: 11-11/16 (29.7)
Ceiling opening: 12-1/2 (31.8)
19-1-4 (48.9
Annual*
LER.DOL
44
48
*
Comparative yearly lighting energy cost per 1000 lumens
Cost
$5.41
$5.02
Lamps
(1) 250M
(1) 400M
Energy
Lamp
Lumens
20500
35000
Ballast
Factor
ORDERING NOTES
1. Recommended for use with coated lamps.
2. California Title 20 compliant. Only available with HEB ballast.
3. Not available with finishes.
4. 347V only.
5. 120V or 277V only.
6. 120V or 277V only. MHC only.
1.00
1.00
Input
Watts
290
460
7. Uses maximum 100W DC-base quartz lamp.
8. DC socket with leads for connection to external emergency power source;
maximum 100W lamp.
9. For compatible RELOC systems, refer to TECH-110.
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/01/13. Specifications subject to change without notice.
AH-12-OPEN
PAGE 2 OF 3
12” AH
90° 0
74.9°
ρ f 20%
10 39 35 38 35 33 38
12800
16000
Open Reflector
Metal Halide Lamp
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
AH 250M 12AR
3200
6400
9600
0°
90°
From 0° Ave Lumens
45°
15° 14185 3876
25° 9466 4245
35° 4149 2630
45° 958 853
55° 72 102
65° 23 23
75° 15
85° 00
250W MS250/C/BU LAMP, 0.9 S/MH, 21500 RATED LUMENS, TEST NO. 2189060602P
0° 16033
5° 15993 1499
Zone Lumens %lamp
0°-30° 9620.5 44.7
0°-40° 12250.7 57.0
0°-60° 13205.7 61.4
0°-90° 13233.5 61.6
90°-180°0 0.0
0°-180°13233.5 61.6*
* Efficiency
ρ c 80% 50% 30%
ρw50% 30% 50% 30%10% 50%
1686764636162
2646161595659
3595657555255
4565254514852
5524950484549
6494548454247
7464245423944
8444042393742
9413840373540
50% 10%
Initial fc fc at fc at
Mount at beam Beam beam Beam beam
height center diameter edgediameter edge
8' 530.04.7'265.0 8.4' 53.0
10' 285.06.4'142.5 11.5'28.5
12' 177.7 8.2' 88.8 14.6' 17.8
14' 121.2 9.9' 60.6 17.6' 12.1
16' 88.0 11.6' 44.0 20.7' 8.8
beam angle 46.4° beam angle
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.
AH-12-OPEN
PAGE 3 OF 3
GOTHAM ARCHITECTURAL DOWNLIGHTING | 1400 Lester Road Conyers GA 30012 | P 800.315.4982 | gothamlighting.com
© 2008-2013 Acuity Brands Lighting, Inc. All Rights Reserved. Rev. 07/01/13. Specifications subject to change without notice.
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