Cooper Lighting QCT901MH Fascicule

www.cooperlighting.com

7.25”

9.75”

12.00”

13.00”

8.18”

4.63”

4.63”

0.5” - 1.0”

Ceiling 

Cut-Out

5.50”dia.

Housing and plaster frame: 18 gauge CRS 

with flat black powder coated internal 

finish. Adjustable trimless mud-ring can  

accommodate 1/2”, 5/8”, 3/4” & 1” ceiling 

thickness.
B ...System Protection:

Thermal protection provided to guard 

against overheating and misuse of 

insulation over and around fixture. 

Vent holes in housing provide cooler 

operation.
C ...Electrical

Integral j-box and electronic metal halide 

ballast. 120V/277V input. Junction box 

is U.L. listed for through branch wiring. 

Includes five 1/2 trade size knockouts.
D ...Lamp

MR16 metal halide lamp 20 or 39 watts. 

GX10 TAL lamp socket included. Provides 

360º rotation of trim and secures original 

trim position after relamping. 
E ...Mounting

Hanger Bars and Butterfly Brackets 

included for residential and commercial 

applications respectively. Perforated 

flaps for secure drywall installation.

QCT901MH =   

Quiet Ceiling  

New Construction Housing

for Square Trim 

w/Integral Metal Halide Ballast 

 

 

       

120 volts primary 

277 volts primary

New construction housing for Quiet Ceiling square trimless fixtures. 
Includes electronic metal halide ballast for use with 20W or 39W MR16 
Metal Halide lamp.

For new construction applications. Insulation must be kept 3” from all 
sides and at least 1” above the housing.

RSA Lighting • 7945 Orion Ave. • Van Nuys, CA 91406 • 818-349-3030 • FAX 818-349- 3031

 

 20 watts 

39 watts

Ceiling mudding compound is applied 
right to the edge of the fixture.

rev. 030108