STEEL SHAPES
DIRECT / INDIRECT
SERIES
S643
Options:
Mounting Options:
S - Surface mount
W - Wall mount
Lamp Options:
T5 - 5/8" Diameter
T5HO - 5/8" Diameter (High Output)
BX - Biax
OCT - T-8 Octron
Color Options:
WHT - White is Standard
CA - Custom Colors
Electrical Options:
277 - 277 Volt Operation
EM - Emergency Ballast
DIM - Dimming Ballast
GLR - In Line Fusing
2CIR - 2 Circuit Wiring
4 3/4"
5 1/2"
3 3/8"
The S643 series is a wall fixture efficient enough to be a contributing
light source in most rooms. All PMC perforated fixtures have powder
coated housings, with high reflectance (Minimum Reflectance Factor
90%), enamel interiors for optimal optic efficiency.
Fixtures are UL listed, and have standard electronic ballasts.
Each fixture is lamp-tested at the factory before shipment.
ORDERING INFORMATION
S643- DISERIES
NUMBER
LIGHT
OUTPUT
DI
W- 2/T5HO-
4-
1
2
2
3
4
S
W
BX
T5
T5HO
T8
WHT- UNV
277
EM
DIM
GLR
2CIR
MOUNTING
NUMBER
OF LAMPS
LAMP
TYPE
WHT
Standard
CA
Custom
Color
LENGTH
PMC L GHT ING
INCORPORATED
COLOR
OPTIONS
STS-17
SERIES S643
4 3/4"
Typical Surface Mounting Locations
6"
6"
1', 2', 3'
5 1/2"
3 3/8"
2', 3', 4'
PHOTOMETRY
Model No. S643-DI-W-2/T8-4’-WHT-120V
2 Lamps•2850 Lumens•Perf
Coefficients of Utilization
RCR
1
2
3
4
5
6
7
8
9
10
70
80%
50
30
70
70%
50
30
50
50%
30
10
.86
.79
.72
.66
.60
.55
.50
.46
.43
.40
.86
.75
.66
.58
.51
.46
.41
.37
.33
.30
.86
.72
.61
.52
.45
39
.34
.30
.27
.24
.80
.73
.66
.61
.55
.51
.47
.43
.40
.36
.80
.70
.61
.54
.48
.42
.38
.34
.31
.28
.80
.67
.57
.49
.42
.37
.32
.28
.25
.22
.68
.59
.52
.46
.41
.37
.33
.29
.26
.24
.68
.57
.49
.42
.37
.32
.28
.25
.22
.19
.68
.55
.46
.39
.34
.29
.25
.22
.19
.16
CANDELLA DISTRIBUTION
SPECIFICATIONS
CONSTRUCTION: Fixture Exterior
Chassis is die-formed, and welded
of 20 gauge, cold rolled steel,
perforated at sides and backed with
white opal. Internal construction of
20 gauge, die formed CRS.Ends are
welded flush with housing.
MOUNTING: Fixture is mounted to
to wall using keyhole slots.
FINISH: Standard fixtures are
polyester powder-coated white.
Reflective internal components are
finished in high gloss white enamel
(Minimum Reflectance Factor 90%).
Ballasts shipped as standard
equipment
All dimensions are subject to change, Consult the
factory before making structural alterations.
OPTIONS:
FINISH: A range of custom colors
are available to meet Architect
specifications. Please consult the
factory.
ELECTRICAL: 277 Volt Ballast
(277). Dimming Ballast (DIM).
Emergency Ballast (EM) Note:
unless specified, PMC will select
ballasts to meet requirements. In
Line Fusing (GLR). 2 Circuit Wiring
(2CIR).
ELECTRICAL: All fixtures are UL
listed, and are shipped fully wired,
individually tested, with Electronic
PMC L GHT ING
INCORPORATED
1 0 0 G i l b a n e St r e e t / W a r w i c k , R I 0 2 8 8 6
•
401.738.7266
FA X . 4 0 1 . 7 3 8 . 0 6 1 8
•
w w w. p m c l i g h t i n g . c o m
STS-17