Lightolier C12E28VN Fascicule

Calculite

®

HID Downlight 

Page 1 of 2

12" Aperture, ED28 (Enclosed) Metal Halide, Narrow Beam

Job Information

Type:

Job Name:
Cat. No.:

Lamp(s):
Notes:

a Genlyte Thomas Company

www.lightolier.com

631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
We reserve the right to change details of design, materials and finish.
© 2004 Genlyte Thomas Group LLC (Lightolier Division) • AO5O4

2" (50 mm) max.
Ceiling Thickness

Vertical 
Adjustment: 
5/8" (16 mm) to 
2 7/8" (73 mm)

12" (305 mm) Dia.

18-3/4" 

(376 mm)

13-1/4" (337 mm) Dia.

11" 

(280 mm)

21-1/4" (540 mm) 175-250W

23-3/4" (603 mm) 

320-400W

20" (508 mm) to 30" (762 mm)

16-3/8" (416 mm)

10-3/4" 

(273 mm)

13" (330 mm)

Ceiling Cutout: 12 9/16” (256 mm) Dia.

Specular Clear, White Painted Flange. 

Specular Clear, Matching Flange.

Comfort Clear Diffuse, White Painted Flange.

Comfort Clear Diffuse, Matching Flange.

Champagne Bronze, White Painted Flange.

Champagne Bronze, Matching Flange.

C1217MHPU  Magnetic Pulse Start, 120V/277V

175W ED28, BT28, PS MH

C1225MHPU  Magnetic Pulse Start, 120V/277V

250W ED28, BT28, PS MH

C1232MHPU  Magnetic Pulse Start, 120V/277V

320W ED28, BT28, PS MH

C1240MHPU  Magnetic Pulse Start, 120V/277V

400W ED28, BT28, PS MH

C1217MHU  Magnetic, 120V/277V

175W ED28, BT28, MH

C1225MHU  Magnetic, 120V/277V

250W ED28, BT28, MH

C1240MHU  Magnetic, 120V/277V

400W ED28, BT28, MH

1. Upper Reflector: Clear anodized aluminum, 0.040" (16-ga.). Provides narrow

beam optics ideal for high ceilings. Also available in wide beam, see
C12E28VW specification sheet.

2. Aperture Cone: Low brightness with 40° cut-off to lamp. Specular Clear or

Comfort Clear™ Diffuse, or champagne bronze self-flanged in painted white
or aperture-matching polished flange. Consult factory for other finishes.

3. Lamp Shield: High-temperature glass as required by code, captive 

during re-lamping.

4. Socket Cup: Heat dissipating, die-cast aluminum, pre-wired with mogul base

porcelain socket with nickel plated screw shell. Postive locking attachment
without tools to reflector assures proper optical alignment of lamp. 

5. Mounting Frame: 0.048" (18-ga.) galvanized steel. Includes the pre-installed

mounting bars. 

6. Mounting Ring: 0.048"(18-ga.) galvanized steel. Designed for vertical 

adjustment from above or below for ceilings from 0" to 2" thick. Center-line
notches allow consistent alignment of multiple fixtures.

7. Retention Springs: Rust resistant springs secure cone for quick, tool-less

installation.

8. Frame Vertical Adjustment: Vertical adjustment mechanism accommodates

mounting to virtually any ceiling system using mounting bars (provided, or
1/2" EMT tubing (by others). Single locking feature secures all adjustments.
Alignment holes and markings allow fixture to be preset prior to installation.

9. Mounting Bars: 0.048" (18-ga.) pre-installed, telescoping bars extend to 30" long

and lock securely into position. Built-in locking tabs provide positive attachment
to common T-bar systems. Self-centering feature simplifies installation in 24"
O.C. grid systems. Attaches to steel or wood joists without accessories.

10. Ballast: Pulse Start
11. Junction Box: 0.048" (18-ga.) galvanized steel. UL listed for 8 No. 12 AWG,

90°C through branch circuit conductors. Allows inspection from below. 

12. Thermal Protector: Meets NEC and UL requirements. Do not install 

insulation above nor within 3" (76mm) of any part of the luminaire.

Magnetic Ballast: 120/277V dual voltage, 60 Hz., encased and potted, CWA or
Super CWA (pulse start) circuit type, high power factor, sound rating “B” (175W
and 250W PS)/sound rating “C” (others), -20°F minimum starting Temperature,
Type 1 Outdoor rating.

175W PS MH

M137

120/277

2.20/0.90

205

250W PS MH

M138

120/277

2.80/1.20 

290

320W PS MH

M132

120/277

3.40/1.50 

370

400W PS MH 

M135

120/277

4.10/1.80

465

175W MH

M57

120/277

2.00/0.90

205

250W MH

M58

120/277

2.60/1.10

290

400W MH

M59

120/277

3.90/1.70

460

Auxiliary: Add suffix A to Frame-In Kit and Reflector Trim. See Spec.Sheet ”A“.
Emergency: Add suffix E to Reflector Trim and Frame-In Kit. See Spec. Sheet “E”.
Slope Ceiling Adapters: See Specification Sheet SCA. 
Fuse (magnetic ballast): Add suffix F1 or F2 to Frame in Kit (F1=120V, F2=277V).
Chicago Plenum: Consult Factory.

UL (Suitable for Damp Locations), CSA, I.B.E.W.
For 320W/400W, install fixtures with minimum spacing:  4 feet from center-to-
center of adjacent luminaries; 3 inch from top of luminaire to overhead building
member;2 feet from luminaire center to side building member.