8” Horizontal Open,
Lensed, & Wall Wash
Downlight
DATE:TYPE:
FIRM NAME:
PROJECT:
CFT857HEB
One 57W Double Quad Tube
4-Pin Lamp
Non-IC Rated
120V, 277V, or 347V
Featuring
APPLICATIONS:
Reflectors
The CFT857HEB offers a horizontally lamped
compact fluorescent downlight, lensed and
wall wash fixture that provides superior
brightness and glare control. The multi-volt ballast provides the capacity for voltages from
120 – 277V. This luminaire is ideal for a
wide variety of medium to high ceiling applications including commercial, retail, and hospitality. The CFT857HEB is compatible with the
Signos8 family of architectural elements.
Ceiling Cutout: 8 1⁄4”
Maximum Ceiling Thickness: 11⁄4”
For conversion to millimeters,
multiply inches by 25.4
Not to Scale
Horizontal EMR Dimension 17-1/2”
14 3⁄8”
W/O EM
LAMP:
One (1) 57W (GX24q-5 base) 4-pin
double quad tube compact fluorescent lamp.
Lamp furnished by others or as option below.
SOCKET:
One (1) injection molded socket suitable
for 57W double quad tube lamps (vented).
7 1⁄8”
INSTALLATION:
Universal adjustable mounting brackets accom1
3
modate 1 ⁄2” or ⁄4” lathing channel or 1/2” EMT
by
(by
others),
or
Prescolite 24” bar hangers
HOUSING:
One-piece 18-gauge galvaneal steel platform. (B24 or B6).
Prewired J-box with snap-on cover for easy
LABELS:
access. Vented at lamp tip and socket for
UL listed or UL/CSA listed with CDN option for
maximum light output. Same housing accom- damp locations.
modates downlight, lensed, and wall wash Wet location when used with lensed trims. Apreflectors.
proved for through wiring Non-type I.C.
REFLECTOR:
High purity aluminum Alzak Virtual Source®
iridescence suppressed reflector. Self-trim
standard. Painted white self-trim available.
7 3⁄4”
9”
14 3⁄8”
LAMP INCLUDED OPTION:
Specify lamp type DQ for (Double Quad 4-pin)
and temperature as shown below
15 3⁄8”
BALLAST:
One (1) compact fluorescent Class ‘P’
electronic multi-volt (120V through 277V) ballast suitable for operating 57W double quad
Tube. HPF and EOL protection standard. Accessible from below or above ceiling.
CATALOG NUMBER:
HOUSING
EXAMPLE: CFT857HEB STF857HCG LP57DQ30K B6
HOUSING OPTIONS
❑ CDN 347V9
❑CFT857HEB
Canadian electrical code compliant ballast
8”, (1) 57W Double
quad tube, multi-volt, disconnect
electronic ballast ❑CP7
(120–277V)
Chicago Plenum. Fixture construction
and/or specifications may vary. Refer to
specification sheets on www.prescolite.com
for details.
❑7DM
Advance Mark 7 Dimming Ballast to 5%,
4-wire 0-10V, analog (120V–277V)
❑XDM
Advance Mark 10 Dimming Ballast to 5%,
2-wire, line voltage (specify voltage)
❑FSDFA
Fuse kit installed at factory
❑RIF16,8
Radio interference filter (single circuit)
❑EMR6,8
Emergency battery pack with remote test
switch and indicator light
❑SYL1
Osram Sylvania Ballast (available only for
standard EB option)
❑CDN
Canadian Electrical code compliant ballast
disconnect
❑SMT8
Philips Advance SmartMate® ballast
A Division of Hubbell Lighting, Inc.
REFLECTOR
❑STF857H
8” Alzak
REFLECTOR FINISH
❑Blank
Specular
❑SS
Semi-Specular
❑MFC2
American MatteTM
REFLECTOR COLOR REFLECTOR OPTIONS
❑Blank
Clear Alzak
❑CG
Champagne
Gold Alzak
❑PW
Pewter Alzak
❑BL
Black Alzak
❑WE
Wheat Alzak
❑LW
Light Wheat
Alzak
❑DL2,4
❑B24
Regressed diffuse lens
Set of two (2) 24” bar hangers
for T-bar ceilings
❑CL2,4
Regressed clear lens
❑B6
2,4
❑PL
Set of two (2) bar hangers for
ceiling joists up to 24” centers
Regressed prismatic lens
❑FSDFI
❑TRG
Fuse kit for field installation
Trim ring gasket (factory
installed)
❑SCA8D_
❑WT
Sloped ceiling adapter (see note
on back page)
Painted white self-flange
❑Signos82,5
❑WW
Architectural glass elements
Wall wash reflector (not
Refer to specification sheets
available with lensed trims)
ARCH-SIG-005 through -008
Painted Options*
❑WC 2,3White Cone
❑BC 2,3Black Cone
*All painted options come
standard with an upper
specular clear Alzak reflector.
ACCESSORIES
LAMP ACCESSORIES
❑LP______________
-wattage= 57
-type= DQ (Double Quad 4-pin)
-temp= 27K, 30K, 35K, 41K
1
Available for Osram Sylvania Quick 60+® Limited Warranty when used with Osram lamp(s). (Kelvin)
*Example: LP57DQ30K
See www.prescolite.com for details.
2
Not available with wall wash
3
Not available for MFC or SS finish
4
Regressed reflectors come standard with upper portion of reflector painted white
5
Not available for lensed trims
6
Not available with CP option
7
Top access required to service ballast for Chicago Plenum
8
Not available for 347V
9
Dimming not available with 347V
In a continuing effort to offer the best product possible we reserve the right to change, without
notice, specifications or materials that in our opinion will not alter the function of the product.
Web: www.prescolite.com
•
Tech Support: (888) 777-4832
ARCH-CFL-048
PHOTOMETRIC DATA
BALLAST DATA Quad
Architektū
¯r - 8” Horizontal Open &
Wall Wash Downlights - CFT857HEB
57W Double
120V 277V
347V
Total System Watts
Input Current (Amps)
Input Frequency in Hz
Power Factor
Ballast Factor
Total Harmonic Distortion
Minimum Starting Temperature
59W
0.5
50/60
>98%
>94%
<10%
0°C (32°F)
59W
0.21
50/60
>98%
>94%
<10%
0°C (32°F)
61W
.18
50/60
High
1.00
<10%
0ºF
LAMP DATA
Rated Watts
57W Double Quad
Rated Lumens
4300
Efficacy (LPW)
69
Rated Life
12,000 hours
CRI82
Minimum Starting Temp.
0º F
CFT857HEB-STF857H Clear Alzak Reflector
Lamp: One 57W Double Quad
Rated lumens: 4300
Spacing Criteria:
0° = 1.4
Efficiency: 51.1%
CANDLEPOWER DISTRIBUTION
Test No. 2003053
CANDLEPOWER SUMMARY
Angle
Mean CP
1076
1076
1075
1088
1166
1240
1201
1113
957
673
195
31
11
6
4
2
1
1
0
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
Lumens
219
602
842
795
360
25
1
LUMINANCE DATA IN CANDELA/SQ. METER
Angle Mean CD/SQ. M.
45°29335
55°1666
65°438
75°238
85° 354
AVERAGE INITIAL FOOTCANDLES
Multiple Units (Square Array)
Ceiling 80% Wall 50% Floor 20%
Assumptions:
1. 4 fixtures evenly spaced in the center of the room.
2. The room is square and has a width and length equal to
twice the lamp spacing.
3. The lumen depreciation factor is .8
4. The dirt depreciation factor is .98
57W Triple
SPACINGRCR1 RCR3
7.0
38
32
8.0
29
25
9.0
23
19
10.0
19
16
11.0
16
13
12.0
13
11
13.0
11
9
14.0
10
8
15.0
8
7
COEFFICIENTS OF UTILIZATION RCR7
23
17
14
11
9
8
7
6
5
Zonal Cavity Method
% Effective Floor Cavity Reflectance
Room Cavity
Ratio
80%
70% 50%30%10%
% Wall Reflectance
0
1
2
3
4
5
6
7
8
9
10
70 5030 10 7050 30 10 50 3010 5030 10 50 3010
0
.61.61.61.61 .59.59.59.59 .57.57.57 .54.54.54 .52.52.52 .51
.57.56.54.53 .56.55.53.52 .53.52.51 .51.50.49 .49.48.48 .47
.54.51.49.47 .53.50.48.46 .48.47.45 .47.45.44 .45.44.43 .42
.51.47.44.41 .49.46.43.41 .45.42.40 .43.41.40 .42.40.39 .38
.47.43.39.37 .46.42.39.36 .41.38.36 .40.37.36 .39.37.35 .34
.44.39.35.33 .43.39.35.33 .38.35.32 .37.34.32 .36.34.32 .31
.41.36.32.30 .40.35.32.29 .35.32.29 .34.31.29 .33.31.29 .28
.39.33.29.27 .38.33.29.27 .32.29.26 .31.28.26 .31.28.26 .25
.36.30 .27.24 .35.30.27.24 .29.26.24 .29.26.24 .28.26.24 .23
.34.28.25.22 .33.28.24.22 .27.24.22 .27.24.22 .26.24.22 .21
.32.26.23.20 .31.26.22.20 .25.22.20 .25.22.20 .24.22.20 .19
Test No. 2003053
CFT857HEB-STF857H
0
0
0%
20% Effective Floor Cavity Reflectance
NOTES
Denotes a Virtual Source reflector.
Refer to www.prescolite.com for additional photometric tests
(IES Files).
When ordering a sloped ceiling adapter, specify the degree
of slope in 5° increments, max. of 35°. For a more precise
degree or wet ceiling applications, please contact factory.
Sloped ceiling adapter and housing must be installed at the
same time.
Web: www.prescolite.com • Tech Support: (888) 777-4832
701 Millennium Blvd • Greenville, SC 29607 U.S.A. • Phone (864) 678-1000
Prescolite is a division of Hubbell Lighting, Inc., with representatives’ offices throughout North America
Copyright ©2015 Prescolite, All Rights Reserved • Specifications subject to change without notice. • Printed in U.S.A. •
ARCH-CFL-048 • 4/16/15