Low Pressure Sodium Lamps (SOX-E, SOX)
High energy efficiency low pressure sodium lamps
for indoor and outdoor applications
◗ Excellent Energy Efficiency
Up to 180 lumens per watt
◗ Long Life
18,000 hours rated average life
◗ Vibration Resistant
Rough service arc tube support system provides
protection against shock and vibration
Ideal for roadway lighting, bridge
and tunnel lighting, security lighting,
area floodlighting, railway crossing
lighting and airport lighting
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Low Pressure Sodium Lamp Construction
Physical Dimensions—SOX-E and SOX Lamps
1
2
Ordering
Code
MOL (A)
Max. Diameter (B)
LCL (C)
Light Length (D)
Bulb
In.
mm
In.
mm
In.
mm
In.
mm
1
1
1
5
SOX-E 18
SOX 35
SOX 55
SOX 90
SOX 135
SOX 180
T-17
T-17
T-17
T-21
T-21
T-21
8 ⁄
2
216
310
425
528
775
1120
2 ⁄
8
8
54
54
54
68
68
68
5 ⁄
4
2
141
184
243
292
416
584
3 ⁄
2
8
92
3
1
1
1
12 ⁄
16 ⁄
20 ⁄
30 ⁄
16
2 ⁄
7 ⁄
7 ⁄
192
305
403
646
965
3
1
1
2
4
2 ⁄
8
9 ⁄
12
3
11
1
7
4
2
2
2
⁄
⁄
⁄
16
11 ⁄
16 ⁄
23
2
5 ⁄8
1
11
3
7
2
16
8
25 ⁄
38
16
1
11
44 ⁄
8
16
1. MOL = Maximum Overall Length
2. LCL = Light Center Length
Base: Double Contact Bayonet-Medium (BY-22d)
A
C
B
D
5
7
1
2
3
4
6
8
1. Non-Metallic-Bayonet Base will not corrode or stick in lamp
socket, providing quick, safe relamping. Locking pins on lamp base
assure the lamp locks in socket and cannot vibrate loose. SOX-E
lamps are distinguished by the use of the black bases compared
to the tan bases used on SOX lamps.
5. Uniform Indium Oxide Heat Reflecting Coating creates
highest luminous efficacy of all light sources and contributes to 100%
lumen maintenance by keeping arc tube at the optimum temperature.
6. Barium Getter absorbs trace gases to properly maintain correct
arc tube temperature and maximize light output.
2. Sodium Retaining Reservoirs provide even distribution of
sodium for 100% lumen maintenance, long lamp life and lamp
wattage control.
7.Triple Coil Electrode with full tungsten support holds more
emission paste for superior life.Tungsten supports prevent
electrode vibration keeping emissive paste on the electrode.
3. U-Bend Insulation Feature controls lamp wattage rise and
helps provide more consistent lamp life.
8. Fuse Coil in lamp base provides additional protection to ballast.
By preventing D.C. currents that may occur at end of lamp life,
ballast currents are lower, ballast temperatures are lower and
ballast life is longer.
4. Rough Service ArcTube Support System eliminates arc
tube movement along lamp axis yet allows radial arc tube flex.
It provides highest protection from shock and vibration.
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Philips Lighting Company
200 Franklin Square Drive P.O. Box 6800
Somerset, NJ 08875-6800
Philips Lighting
281 Hillmount Road
Markham, Ontario
◗
1-800-555-0050
Canada L6C 2S3
1-800-555-0050
A Division of Philips Electronics Ltd.
A Division of Philips Electronics North America Corporation
Printed in USA 4/03
P-1785-C
Low Pressure Sodium Lamps (SOX-E and SOX)
Electrical,Technical and Ordering Data (Subject to change without notice)
Product
Number
046677-
ANSI
Ballast
Code
Nominal
Lamp
Watts
Nominal
System
Watts
Nominal
Lamp
Volts
Nominal
Lamp
Current
Max.
Starting
Current
Rated
Average
Life (Hrs.)
Run Up
Time
(Minutes)
Ordering
Code
Operating on
Ballast For
Lumens
23404-7
32781-7
32151-3
32152-1
32153-9
32799-9
SOX-E 18
SOX 35
SOX 55
SOX 90
SOX 135
SOX 180
L69
L70
L71
L72
L73
L74
SOX 18
SOX 35
SOX 55
SOX 90
SOX 135
SOX 180
18
35
55
90
135
180
1800
4550
7800
14300
22600
32000
55
70
109
112
164
240
0.36
0.6
0.59
0.91
0.95
0.91
0.42
0.60
0.59
0.94
0.95
0.91
18000
18000
18000
18000
18000
18000
15
7
7
9
9
60
80
125
178
220
9
Operating Positions
Light Output Over Life
Base Temperature Limit
Bulb Temperature Limit
Lamp Brightness (SOX)
100%
SOX-E 18
SOX 35
SOX 55
SOX 90
SOX 135
SOX 180
150º C
150º C
10 cd/cm2
0º
20º
110º
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