Page 1
Luminaire Type:
Catalog Number
(autopopulated):
Gotham Architectural Downlighting
HID Downlights
3” DMRH
Downlight
Seamless Cast Faceplate with Open Cone
MR16 Ceramic Metal Halide Lamp
FEAT URES ORDERING INFORMATION NOTES
OPTICAL SYSTEM
• Internal housing components painted matte black. Lamp snoot minimizes stray
light in housing.
• Semi-specular, matte-diffuse or specular cone.
• Seamless cast faceplate is retained by self-aligning, butterfly support springs.
MECHANICAL SYSTEM
• Black painted housing features tool-less top access and accommodates a
maximum 1-1/2” ceiling thickness.
• Tool-less re-lamp capability from above or below ceiling.
• 16-gauge galvanized steel mounting bars with continuous 4” vertical adjust-
ment are shipped pre-installed. Post installation adjustment possible without
the use of tools above or below ceiling.
• Secondary housing adjustment system for precise, final flange to ceiling
alignment.
• Galvanized steel junction box with hinged access covers and spring latch. Four
combination 1/2”- 3/4” knockouts for straight-through conduit runs. Capacity: 8
(4 in, 4 out) No. 12 AWG conductors rated for 90°C.
EXAMPLE: DMRH DWN MR16 20MHC 3AC 120 SF DWHG
ELECTRICAL SYSTEM
• Tool-less access door provides access to junction box through the aperture.
• Replaceable socket assembly. GX10 socket assembly standard (20W - 39W).
• Electronic ballast module is standard and can be serviced from above or below
ceiling. Servicing from below requires removal of housing wrap and 6” of clearance above housing.
• Thermally-activated insulation detector.
LISTING
• Fixtures are UL Listed for thru-branch wiring, non-IC recessed mounting and
damp locations. Listed an 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 Configuration Lamp type Lamp wattage Aperture/Trim color Voltage
DMRH DWN MR16 MR16 capability 20MHC
39MHC
3AC
Clear
3BC1Black
3PC Pewter
120
277
347
3WTC Wheat
3GC Gold
1
3MB
Black baffle
Options
2
RRL
RELOC®-ready luminaire. Provides compatibility with Lithonia RELOC system. Access above
ceiling required.
CP
Chicago plenum
SF Single fuse
LPFL Lamped, flood
LPSP Lamped, spot
LPWFL Lamped, wide flood
ACCESSORIES order as separate catalog numbers (shipped separately)
• For lens accessories, refer to TECH-120.
ORDERING NOTES
1. Not available with finishes.
2. For compatible Reloc systems, refer to TECH-110.
DMRH-3-OPENCONE
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. 08/08/13. Specifications subject to change without notice.
3
Architectural colors (powder finish)
DWHG Matte white (standard)
DDB Dark bronze
DBL Black
3. Color available for faceplate. Additional architectural colors available; see
www.lithonia.com/archcolors .
DWH Gloss white
DMB Medium bronze
DNA
Natural aluminum
DSS Sandstone
DGC
DTG Tennis green
DBR Bright red
DSB Steel blue
Charcoal gray
Page 2
3” DMRH
15-1/4
(39.5)
Overlap trim: 5-7/16 (13.8)
Downlight
Seamless Cast Faceplate with Open Cone, MR16 Ceramic Metal Halide Lamp
DIMENSIONAL DATA
All dimensions are inches (centimeters) unless otherwise noted.
6-3/4
(17.2)
(38.5)
Aperture: 3 (7.6)
Ceiling opening: 4-7/8 (12.4)
15-9/16
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. 08/08/13. Specifications subject to change without notice.
DMRH-3-OPENCONE
PAGE 2 OF 3
Page 3
3” DMRH
pf
20%
FC
5
5
8
9
4
0
0
pf
20%
90
1900
3800
5700
7600
9500
0
32.7
17.6
10.9
Downlight
Seamless Cast Faceplate with Open Cone, MR16 Ceramic Metal Halide Lamp
PHOTOMETRY
Distribution Curve Distribution Data Output Data Coefficient of Utilization Illuminance: Single Luminaire 30” Above Floor
DMRH DWN MR16 20MHC 3AC
90°
80°
500
1000
1500
2000
2500
0° 10° 20° 30°
70°
60°
50°
40°
DMRH DWN MR16 35MHC 3AC
90°
80°
70°
60°
50°
40°
0° 10° 20° 30°
0
20W, CMH20MR16/830/WFL, 1700 DELIVERED LUMENS, 0.5 S/MH, TEST NO. LTL17335
222
384
156
34
0° - 30°
0° - 40°
0° - 60°
0° - 90°
90° - 180°
0° - 180°
3
0
0
0
0
Zone Lumens% Lamp
761.6
795.7
799.0
799.0
0.0
799.0
Ave LumensFrom 0°
2558
0
2449
5
2089
10
1442
15
745
20
308
25
128
30
49
35
40
12
45
3
50
0
55
0
60
0
65
0
70
0
75
0
80
0
85
0
90
44.8
46.8
47.0
47.0
0.0
47.0
pc
80%70% 50%
pw
50%30% 10%50% 30%10% 50%30% 10%
56
56
56
55
55
55
0
53
52
51
1
50
2
48
3
46
4
44
5
43
6
41
7
40
8
38
9
37
10
52
49
48
50
46
45
47
44
43
46
42
41
44
41
39
42
39
38
41
38
36
39
36
35
38
35
34
37
52
51
50
50
48
47
48
46
45
46
44
42
45
42
41
43
40
39
42
39
37
40
37
36
39
36
35
38
35
34
37
39W, CMH39MR16/930/FL, 3400 DELIVERED LUMENS, 0.4 S/MH, TEST NO. LTL17336
55.9
57.6
57.8
57.8
0.0
57.8
pc
80%70% 50%
pw
50%30% 10%50% 30%10% 50%30% 10%
69
69
69
67
67
67
0
65
64
63
1
62
2
60
3
58
4
56
5
54
6
52
7
51
8
49
9
48
10
64
61
59
62
58
56
59
56
54
57
54
52
55
52
50
54
50
48
52
49
47
51
47
46
49
46
45
48
64
63
62
62
60
59
60
57
56
58
55
54
56
53
52
54
51
50
53
50
48
51
48
47
50
47
46
49
46
44
48
64
61
59
56
54
53
51
50
48
47
46
Ave LumensFrom 0°
0
9873
5
8911
6182
3106
1303
531
228
84
15
4
2
2
0
0
0
2
0
0
757
871
272
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
ZoneLumens% Lamp
0° - 30°
0° - 40°
0° - 60°
0° - 90°
90° - 180°
0° - 180°
59
5
1
0
1
0
1899.0
1958.0
1964.4
1965.4
0.0
1965.4
52
52
49
49
47
46
45
44
43
42
41
40
40
39
39
37
37
36
36
35
35
34
Mounting
Height
8.0
10.0
12.0
14.0
16.0
Inital FC
Center
64
60
58
55
53
51
50
48
47
46
Mounting
Height
8.0
10.0
12.0
14.0
16.0
Inital FC
Center
Beam
326.4
175.5
109.4
74.7
54.2
50% beam
30.3°
Diameter FC Diameter
Beam
84.6
45.5
28.3
19.3
14.0
3.0
4.1
5.1
6.2
7.3
50% beam
22.8°
42.3
22.7
14.2
9.7
7.0
Diameter FC Diameter FC
163.3
2.2
87.8
3.0
54.7
3.8
37.4
4.6
27.1
5.5
10% beam
49.1°
5.0
6.9
8.7
10.5
12.3
10% beam
41.1°
4.1
5.6
7.1
8.6
10.1
7.5
5.4
44
8.
4.
2.
1.
1.
PHOTOMETRY NOTES
• Tested to current IES and NEMA standards under stabilized laboratory conditions.
• 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.
DMRH-3-OPENCONE
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. 08/08/13. Specifications subject to change without notice.
Loading...