Ste24 3

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STE24-3

2' × 4' Stratus Recessed Indirect / 3-Lamp T5, T5HO, T8
Project Information
Project Name

Type

Catalog No.

Date

Construction

Features
•	 Precision optical design produces high efficiency in a
high visual comfort architecturally styled direct/indirect
distribution
•	 Custom perforated metal basket is backed by a high
transmission lamp obscuring overlay
•	 Optimized coating process and unique paint formulation
provide exceptional reflectivity in a matte finish for a soft
visual image and balanced basket and reflector illumination
•	 Completely recessed, provides a clean ceiling with uniform
illumination at mounting heights as low as 8 feet
•	 Available for use with T8, T5 or T5HO linear fluorescent lamps
•	 Optional acrylic dust guard pivots to seal lamp compartment
against contaminants especially for schools, medical
facilities and public spaces
•	 Companion Louvered (STEL), side basket (STS) and pendant
(STP) models available

Luminaire housing and end caps are die formed
code gauge cold rolled steel. The sturdy reflector is
stiffened with linear forms, profiled to a precision
curve. Perforated basket with high transmission
overlay for improved optical efficiency plus lamp
obscuration. Basket and all reflective surfaces are
finished after fabrication with unique formula high
reflectivity matte white paint for soft, uniform
indirect illumination.
Thermoplastic light traps snap into the housing
at both ends of the basket to prevent light leaks.
Basket hinges down for easy access to center
wireway.
Installation

An access plate is furnished with each luminaire
for fast wiring access from the plenum. No need to
open fixture.
Ballasts

Energy efficient, thermally protected, automatic
resetting, Class P, high power factor, sound rated A,
magnetic or electronic ballasts. CEE NEMA Premium
compliant.

Electrical

Standard class “P”, thermally protected,
autoresetting HPF ballast, sound rated A. CEE NEMA
Premium compliant. All ballast leads extend a
minimum of 6" through access location. NEC/CECcompliant ballast disconnect is standard.
Ceiling Compatibility

NEC-compliant T-Bar clips supplied with all grid trim
fixtures. See ceiling details on reverse. For type SG
ceilings order G trim. Fixture will be regressed 3/8”
from the face of the ceiling tee. For hard ceilings
order G trim and FK flange accessory. Assemble
then support FK accessory at the ceiling plane
using tie wires (by others). Contact your Columbia
representative for compatibility information
for specific ceiling types or for continuous row
applications in hard ceilings.
Certification

All luminaires are built to UL 1598 standards and
bear appropriate UL and cUL or CSA labels. Damp
location labeling is standard. Emergency-equipped
fixtures labeled UL 924.

Ordering Information
STE

24

–

Model

3

–

No. of Lamps

STE Stratus E-Series
Recessed
Indirect

Example STE24-332G-MPO-EU

3 Three

–

–

Ceiling Type

Shielding

Voltage

G Grid Lay-in
SM Surface Mount

MPO Metal Perf w/Overlay

U 120V-277V
347 347V

Size

Lamp Type

24 2' × 4'

28 4', T5: 28 Watt
32 4', T8: 32, 30, 28 or 25 Watt
54 4', T5HO: 54 or 51 Watt

Page 1/2 Rev. 02/03/11

MPO

Ballast
E Electronic T8, Instant Start
ED Electronic Dimming T8 and T5
(specify series)
EP Electronic T5, T5HO, or T8,
Programmed Start
3E 3-Lamp Electronic T8,
Programmed Start
3EP 3-Lamp Electronic T5, T5HO,
or T8 Programmed Start

Options
GLR
GMF
EL
EL5
DG
NYC
NYCU

Fast Blow Fuse
Slow Blow Fuse
Emergency Battery Pack
Emergency Battery Pack, T5
Dust Guard Clear Acrylic
NYC Compliant
NYC Compliant, Union Label

Accessories
(Order Separately)
FK24 2' × 4' Single Flange Kit
(Shipped separately)

RECESSED ARCHITECTURAL / STE24-3

© 2011 Columbia Lighting, a division of Hubbell Lighting, Inc. Because of continuing product improvement programs, Columbia Lighting reserves the right to change
specifications without notice. 701 Millennium Blvd. Greenville, SC 29607 / Tel 864.678.1000 / Tech Support 864.678.1668 / Website www.columbialighting.com

STE24-3

2' × 4' Stratus Recessed Indirect / 3-Lamp T5, T5HO, T8

Photometric Data

Test ITL65805 Test Date 8/30/10

Luminaire Data

Zonal Lumen Summary
Zone

STE24-332G-MPO-3EU
Stratus, Recessed/Architectural
2 x 4 3-lamp with perforated metal
baslet and opal overlay
ICN-3P32-SC
0.88
F28T8
2750
71
0º = 0 90º = 0
0º = 1.22 90º = 1.30
Length: 3.93
Width: 1.88
Height: 0.00

Ballast
Ballast Factor
Lamp
Lumens per Lamp
Watts
Shielding Angle
Spacing Criterion
Luminous Opening
in Feet

Energy Data

Lumens % Lamp % Fixt.

0-30

1750

21.2

26.9

0-40

2875

34.8

44.2

0-60

5130

62.2

78.8

0-90

6507

78.9

100.0

0-180

6507

78.9

100.0

Indoor Candela Plot

RCR

10
76

70
84

70
50 30
80 77

10
74

50
77

50
30
74

10
72

81
Noncompliant
$2.96 based on
3000 hrs. and
$0.08 per KWH

AVG. LUMINANCE (Candela/Sq. M.)

Coefficients of Utilization (%)
80
50 30
82 79

78.9%

Luminaire Efficacy Rating (LER)
IESNA RP-1-1993 Compliance
Comparative Yearly Lighting
Energy Cost per 1000 Lumens

90

75

RC
RW 70
1 86

Total Luminaire Efficiency

0
0
66

2

78

71

66

61

76

70

65

61

67

63

59

55

3

71

63

56

51

69

61

55

50

59

54

50

46

4

65

55

48

43

63

54

48

43

52

47

42

39

5

60

49

42

37

58

48

42

37

47

41

36

34

6

55

44

37

32

53

44

37

32

42

36

32

30

7

51

40

33

28

50

40

33

28

38

32

28

26

8

47

37

30

25

46

36

30

25

35

29

25

23

9

44

34

27

23

43

33

27

23

32

27

23

21

10

42

31

25

21

41

31

25

21

30

24

20

19

1200
60

Average Luminance Angle

Luminaire

0.0

22.5

45.0

67.5

0

3275

3275

3275

3275

90.0
3275

30

3110

3142

3220

3285

3307

40

2986

3058

3174

3307

3330

45

2917

3000

3158

3309

3350

50

2824

2926

3125

3300

3359

55

2700

2832

3078

3289

3358

60

2538

2719

3010

3255

3339

65

2330

2603

2923

3254

3289

70

2011

2415

2794

3088

3016

75

1790

2184

2550

2561

2561

80

1460

1913

1905

2156

2114

85

919

1170

1438

1504

1504

2400
0

15

00

30
Horiz 0-180
45 0

45

90 0

RCR = Room Cavity Ratio
RC = Effective Ceiling Cavity Reflectance RW = Wall Reflectance

Dimensional Data

Ceiling Compatibility
Type G Side

43/4"
End
24"
Recessed Section

Type G Ceiling Mounting
For lay-in installation in exposed grid ceilings. Maximum tee widths of 1" and maximum heights of
11/2" allowed.

5"
Type SG Ceiling
247/8"
Surface Section
End
Type SG Ceiling Mounting

Top View

For 9/16" slot grid type ceilings. Luminaire will be regressed 3/8" horizontal surface of the tee. Slot grid
tees must be field installed all around the fixture.

Surface Mount K.O. Dimensions
A: 7/8 K.O.
B: 2" × 3" Access (Cover Removed)
C: 2" × 3" Rectangular Knockout

3"

FK Flange Kit

A

247/8"
43/4"
437/16"
487/8"

3"
B

For hard ceiling applications, fixtures must be ordered with a
flange kit that wires directly into the concealed ceiling opening
for a clean finished appearance. For row configurations contact
your local Columbia Representative.
Flange kit cut out dimension for single FK22 only: 243/8" × 483/8"

NOTE: All dimensions are in inches; dimensions and specifications are subject to change without notice. Please consult factory or check sample for verification.
Page 2/2 Rev. 02/03/11
RECESSED ARCHITECTURAL / STE24-3
© 2011 Columbia Lighting, a division of Hubbell Lighting, Inc. Because of continuing product improvement programs, Columbia Lighting reserves the right to change
specifications without notice. 701 Millennium Blvd. Greenville, SC 29607 / Tel 864.678.1000 / Tech Support 864.678.1668 / Website www.columbialighting.com



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