Catalog
CatalogNumber
Number
Type
FEATURES
The SCWA is comprised of a two-coil ballast, ignitor and capacitor
for lamp stabilization. This high power factor system (+90%) is
designed to optimize energy savings while providing good lamp
regulation. This new lamp/ballast combination reduces input
watts and increases lamp lumens and lamp life. Ideal opportunities exist for industrial or commercial applications such as
warehousing, assembly areas, retail establishments and recreational facilities.
BALLAST / LAMP SYSTEM
• Available in 120V, 208V, 240V, 277V, 347V and 480V. In Canada,
available in 120V, 277V and 347V. For other voltages, consult
factory.
• Good lamp regulation. A +/-10% line voltage fluctuation
results in a lamp wattage regulation of +/-10%.
• Operates lamps at a crest factor of 1.60. Unlike probe start
CWA ballasts which rely on a high crest factor to start the lamp
(typically 1.8), the SCWA system uses a pulse ignitor. Because the lamp current is closer to a true sine wave, less
stress is placed on the arc tube electrodes, resulting in
smoother lamp operation.
• Hot restrike times of less than 4 minutes. Because the starting
of the lamp is accomplished through a pulse ignitor, the
normal cooldown period before re-ignition has been substantially reduced.
• Consistent color over lamp life. The SCWA ballast circuit
operates the lamp more gently than a standard CWA circuit.
A lower number of starts over life results in less blackening
of the arc tube wall.
• No “End of Life” cycling. This phenomenon, a characteristic
of high pressure sodium lamps, does not occur in Metal
Halide. This makes it easy to identify lamps in need of
replacement.
• Listing. UL Listed and CSA component listed.
Notes
Type
Pulse Start HID Lighting
SCWA
Super Constant Wattage Autotransformer
Metal Halide Ballast Option
400 Watts
450 Watts
ORDERING INFORMATION
•
Add SCWA after voltage in options part of master catalog
number.
ELECTRICAL CHARACTERISTICS
Wattage/
Ballast
Primary
Voltage
Line Current
(Amps)
Start/Operating
Primary
Dropout
Voltage
400 SCWA
Super Constant
Wattage Autotransformer
120
208
240
277
347
480
3.50/4.00
2.00/2.30
1.75/2.00
1.50/1.75
1.20/1.40
0.90/1.00
60
104
120
138
174
240
450 SCWA
Super Constant
Wattage Autotransformer
120
208
240
277
347
480
4.20/4.50
2.40/2.60
2.10/2.25
1.80/2.00
1.45/1.60
1.00/1.10
75
130
150
170
220
270
Input
Watts
Power
Factor
Regulation Line V=
Lamp Lumens
455
90%
+10%= +10%
514
90%
+10%= +10%
Tested to current IES and NEMA standards under stabilized laboratory conditions. Various operating factors can cause differences
between laboratory data and actual field measurements. Dimensions and specifications on this sheet are based on the most current
available data and are subject to change without notice.
SCWA3
SCWA Super Constant Wattage Autotransformer, 400W & 450W
PULSE START BALLAST/FIXTURE COMPATIBILITY
INDOOR
SERIES/OPTICAL
THC/A15
THS/A16
THS/A16GL
THP/A17
THV/A14
THR/PA16
THR/PA22
TE/E17
TE/E22
TXC/A23
TXS/A30
TXP/A26
TXL/A20
TXR/PA22C
TXR/PA22GLE
TXR/PA25D
TPG/PG16
TPGE/PG16GLE
TPG/PG21
TPGE/PG21GLE
TG
TGL
TGR
REFLECTOR
Open
Open
Enclosed
Open
Open
Open
Open
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Open
Enclosed
Open
Enclosed
Enclosed
Enclosed
Enclosed
OUTDOOR
400 Watts
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•
•
•
•
450 Watts
•1
•1
•
•1
•1
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•1
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•1
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•1
•
• Indicates Compatibility
SERIES
KVE2
KVR2
KVS3
BV2
KSE2
KSF2
KAD
KAC
KACM
KAR2
KKS
KKR
KQS
KQR
KFL3
TFA
TFD
TFG
TFR
TFL
55, 55V
170S
TWH
TSP
TV
THT
REFLECTOR
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Enclosed
Open
400 Watts 450 Watts
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•
•
•
•
•
•
•
•
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•2
•
•
•
•
•
•
NOTES
1 Requires double-jacketed lamp. Consult factory.
2 Available in RA2 optics only.
ATTENTION: Not all pulse start lamps are suitable for operation in open opticals. Please refer to lamp manufacturers
data for lamp operation parameters. Please match lamp and ballast ANSI Codes for system compatibility.
SCWA3
©2000 Lithonia Lighting 8/00
SCWA3.p65
ONE LITHONIA WAY, CONYERS, GEORGIA 30012, PHONE 770-922-9000