Now Available with NEMA 4X
INDUSTRIAL EMERGENCY LIGHTING
A P P L I C AT I O N
G U I D E
Table of Contents
Applications ............................................................................ 2
Installation and Mounting..................................................... 3
Lamp Performance and Spacing........................................... 5
Remote Heads ......................................................................... 7
Maintenance Feature Options............................................... 9
Environmental Conditions Options ................................... 11
Available Option Packages ................................................. 13
Notes....................................................................................... 14
The Indura Series is specifically designed for industrial
environments. Now with the addition of a NEMA 4X product, it
is the industry’s broadest and most flexible product offering in
emergency lighting unit equipment. This application guide is
intended to provide detailed information that will aid you in
effectively applying this product.
Page 1
Applications
Indura
Indura 4X
Indura is specifically designed for industrial
and heavy commercial applications such as
warehouses, parking garages, and manufacturing plants.
The Indura 4X emergency lighting unit adds
additional protection from hose-down or harsh
environments where moisture, dirt, and dust
would limit the life of ordinary emergency
lighting units.
• Weatherproof Housing - Overmolded lens
adds protection from hose-down or harsh
environments.
• Gasket Design - Tongue-in-groove silicone
gasket design prevents water and dust from
entering housing.
• Patented Mounting Bracket - 12-gauge steel
mounting bracket finished with epoxy
electrocoat to eliminate corrosion.
• Lens - UV-stable polycarbonate lens protects
lamp heads from environmental conditions, and
wipes down easily.
• Lamp Performance - Same superior lamp
performance as standard Indura.
• RT/SD - Remote test and self-diagnostics
ease maintenance.
• Vertical Design - Protects unit from moving
equipment when pole- or column-mounted.
• Reduced Installation - Mounting plate cuts
installation time by 50% over old-style steel
units.
• Lamp Heads - Located on the bottom of
housing to direct all light to the path of egress.
Lamp heads can be adjusted 3600.
• Superior Lamp Performance - Fieldadjustable beam spread assures optimal egress
illumination in any application.
• Hinged Cover - Allows for hands-free
wiring once mounted.
• RT/SD - Remote test and self-diagnostics
ease maintenance.
Warehouse
Manufacturing
Food Processing
Mills and Refineries
Installation and Mounting
Indura Industrial Emergency Lighting
Application Guide
Easy Installation
Four-Step Installation Process
The Indura family is the industry's first easy
install industrial emergency lighting unit,
installing in half the time of old-style "box"
units. Every Indura unit is shipped with a
patented, universal, 12-gauge, epoxy-coated
steel mounting bracket (Patent No. 6,135,624).
The bracket eliminates the need for traditional
mounting shelves that add additional cost to the
installation. The mounting bracket can be
secured to walls, columns, I-beams, poles,
junction boxes or unistrut.
Step 1: Attach the universal
steel mounting bracket.
Step 2: Slide housing onto
mounting bracket until the
snap-lock feature is
engaged. Open front cover.
Step 3: Remove the
appropriate conduit/wiring
entry hole plug and connect
the AC input leads.
Step 4: Close the front cover
and screw in the fasteners.
Snap-Lock Feature
For Small Housing
(100W or less)
Wall Mounting
Holes (Qty 4)
J-Box Wire
Route Holes
(Qty 2)
*Screw-Lock
J-Box Mounting
Holes (Qty 4)
Pole-Mount
Banding Slots
(Qty 8)
Uni-Strut
Mounting
Holes
(Qty 4)
Mounting Bracket
*Note:Each Indura unit ships with a locking screw to "lock" the
housing to the mounting plate through the inside of the back
housing. With the snap-lock feature of the small Indura housing,
this screw is not required.
Page 3
Installation and Mounting
Pole or Column Banding
(ELA BS accessory)
Pendant Mount
(ELA IND PM accessory)
For quick and easy strapping of the mounting
bracket to a pole or column, order the banding
strap accessory (ELA BS). Contains one 8.5 foot,
100% stainless steel band, three fasteners and
one extender. Other banding may be utilized as
long as the width is 3/4" or less.
The Indura products in the small housing can be
pendant-mounted. Order the ELA IND PM
accessory to receive a metal support bracket to
field-install around the top conduit entry hole in
conjunction with the mounting bracket. Conduit
entry holes on unit and pendant mount bracket
are 7/8" in size. Conduit and canopy are not
provided.
9/18" wide
stainless steel
fastener and housing
assemblies
1/2" wide
stainless steel
banding
5/16" stainless
steel attached
hex-head screw
Ceiling Mount
(ELA IND CM accessory)
The Indura and Indura 4X units listed below
can be ceiling-mounted. The mounting bracket
is still utilized by mounting the bracket to the
ceiling or bar joist, then snapping and locking
the unit in place. When the ELA IND CM
accessory is ordered (see note below), a special
battery bracket is provided to give extra
support and safety. The screw-lock that secures
the unit to the bracket should be used as an
additional locking measure.
Note:
ELA IND CM1 - ceiling mount
ELA IND CM2 - ceiling mount
INDX654, INDX1236, INDX1254
ELA IND CM3 - ceiling mount
ELA INDX CM2 - ceiling mount
kit for IND618
kit for IND654, IND1236, IND1254 and
kit for IND6100
kit for INDX 654, INDX1236, INDX1254
Page 4
Lamp Performance and Spacing
Lamp selection and spacing between units is closely tied to mounting height. Once the mounting height of
the application has been determined, use the chart below to select the lamp that optimizes the layout. The
fixture spacing for each mounting height is given for both one footcandle average requirements and one
footcandle minimum requirements, depending on your local code requirements.
Composite Lamps
Cat. #
Volts
Watts
INDURA
K0906
K0912
N1824
6
12
24
9
9
18
H1206
6
H2006
12'MH
Type
Fixture Spacing
16'MH
18'MH
14'MH
1 FC
Avg. Min.
1 FC
Avg.
Min.
1 FC
Avg.
Min.
1 FC
Avg. Min.
20'MH
24'MH
1 FC
Avg.
Min.
1 FC
Avg. Min.
Lumens
Beam
Kryp.
Kryp.
Inc.
180
190
289
Medium
Medium
Flood
26
24
36
-------
26
24
36
-------
23
22
34
-------
20
22
34
----15
20
22
32
----15
10
20
28
----15
12
Hal.
238
Spot
Medium
Flood
32
28
17
--16
---
32
28
16
--16
---
32
26
15
--16
---
30
24
---
--18
---
30
22
---
--18
---
28
20
---
--15
---
6
20
Hal.
402
Spot
Medium
Flood
46
35
22
16
22
15
46
34
21
16
24
15
45
33
20
16
24
15
43
31
18
16
23
15
41
29
17
16
22
---
39
24
---
16
18
---
H1212
12
12
Hal.
276
Spot
Medium
Flood
38
35
22
--16
---
38
35
21
--17
---
38
33
21
--19
---
38
31
20
--20
15
37
30
18
--21
---
33
26
---
15
21
---
H2012
12
20
Hal.
314
Spot
Medium
Flood
38
26
15
--19
---
38
26
15
--19
---
36
23
---
--19
---
36
23
---
--18
---
34
21
---
--18
---
30
17
---
15
15
---
H2024
24
20
Hal.
300
Spot
Medium
Flood
38
38
23
-------
38
38
23
-------
37
37
22
--15
---
35
35
20
--16
---
33
33
18
--17
---
30
29
15
--19
---
INDX
K0906
K0912
N1824
6
12
24
9
9
18
Kryp.
Kryp.
Inc.
180
190
289
Medium
Medium
Flood
22
20
34
-------
21
20
34
-------
21
19
33
-------
20
19
32
----15
18
18
32
----15
16
16
27
----15
H1206
6
12
Hal.
238
Spot
Medium
Flood
25
25
17
--16
---
25
22
16
--16
---
25
22
14
--16
---
25
20
13
--18
---
25
19
12
--18
---
25
15
10
--15
---
H2006
6
20
Hal.
402
Spot
Medium
Flood
38
35
26
16
22
15
38
33
24
16
24
15
38
33
22
16
24
15
38
32
20
16
23
15
38
31
18
16
22
---
38
28
16
16
18
---
H1212
12
12
Hal.
276
Spot
Medium
Flood
30
28
18
--16
---
30
27
16
--17
---
30
25
15
--19
---
30
24
14
--20
15
30
22
12
--21
---
26
20
10
15
21
---
H2012
12
20
Hal.
314
Spot
Medium
Flood
33
26
15
--19
---
33
26
15
--19
---
33
23
---
--19
---
33
23
---
--18
---
33
21
---
--18
---
29
17
---
15
15
---
H2024
24
20
Hal.
300
Spot
Medium
Flood
34
35
29
-------
34
34
26
-------
34
34
25
--15
---
33
34
22
--16
---
32
33
21
--17
---
30
31
18
--19
---
Sealed-Beam Lamps
Cat. #
Volts
Watts
Type
INDURASealed Beam Lamps
N5024S
H3512S
H5012S
24
12
12
50
35
50
Inc.
Hal.
Hal.
12'MH
Lumens
Beam
1 FC
Avg. Min.
Fixture Spacing
16'MH
18'MH
14'MH
1 FC
Avg.
Min.
1 FC
Avg.
Min.
1 FC
Avg. Min.
20'MH
25'MH
1 FC
Avg.
Min.
1 FC
Avg. Min.
Fixture Spacing
420
706
940
11 X 5
9 X 4.5
7X5
65
75
80
-------
60
70
80
-------
60
70
80
-------
55
70
80
-------
55
70
80
-------
55
70
80
-------
Assumptions to arrive at these spacings: 6' wide path of egress in 15' wide aisle of 200'X200' open warehouse with reflectances = 10/10/10. One footcandle average
requirement also meets .1 footcandle minimum and 40:1 max. to min. ratio as required by Life Safety Code. Visit our website at www.lithonia.com/indura for IES formatted files
used to generate the spacing listed above.
Page 5
Lamp Performance and Spacing
Composite Versus
Sealed-Beam Lamps
Beam Pattern Adjustability
Sealed-beam lamps have long been the
specified lamp choice for optimum
performance in the emergency segment of the
lighting industry. In the past, composite lamps
have offered reduced performance at an
economical price.
Indura composite lamps offer the best value by
significantly exceeding the performance of
sealed-beam lamps at the composite lamp price.
High performance krypton composite lamps
provide 20-37% more light output than the
equivalent incandescent lamps. Halogen 12W50W lamps are available for applications where
even higher mounting heights are required.
In addition, the beam pattern for the composite
lamps is field adjustable to a spot, medium or
flood setting by simply adjusting the bezel of
the lamp. The adjustability is somewhat
analogous to the adjustability of a Mag-Light®
(see picture at top right). The adjustibility of the
lamps allows customers to optimize
performance for different mounting heights
and code requirements.
The composite lamps can be adjusted by simply
rotating the lamp bezel past the appropriate
stop. After analyzing the spacing information
for most composite halogen lamps, the spot
position normally will work best for one
footcandle average requirements, and the
medium position normally will work best for
one footcandle minimum requirements. The
composite krypton lamp performs best in the
medium position. The flood position normally
will be reserved for composite incandescent
lamps.
Page 5
Remote Heads
Advantages of Utilizing Remote
Heads
Remote heads reduce the number of units,
minimizing the number of batteries on the job,
resulting in lower maintenance costs.
Remote heads are smaller and less obtrusive
than a complete unit. This is important if
aesthetics are a primary concern.
In addition, remote heads can reduce initial
product cost, especially in environments that
require special ratings such as wet location or in
areas where ambient temperatures can diminish
battery capacity or life. In many instances, the
unit with battery and electronics can be
installed in a “normal” or controlled
environment with the remote heads located in
the areas that require special ratings.
Advantages of Using
Self-Contained Units
If remote loads are not required, product cost
can be reduced by using 6-volt self-contained
(with battery) units. In most instances, a 6-volt
product is less expensive than a 12-volt or 24volt product. Choose the capacity to operate the
two lamps selected from the lamp chart (see
page 4) that maximizes spacing.
Selecting 6-, 12- or 24-Volt Units
If remote heads are to be incorporated, first
determine the number of remote lamps to be
operated by each unit. Choose a 12-volt or 24volt product according to circuit run length and
load requirements. Reference the voltage drop
information supplied with this guide (see page
7). The length of run is increased approximately four times by using 12-volt instead of 6volt. It is increased another four times by using
24-volt instead of 12-volt.
Terminal Blocks
Terminal blocks are provided to simplify the
connection of remote heads to the emergency
unit. Units of 100-watt capacity or less (small
housing) are equipped with one terminal block
capable of accepting up to 10-gauge wire. Units
of 150-watt capacity or greater are equipped
with two terminal blocks capable of accepting
up to 10-gauge wire.
Fuses
Per UL requirements, Indura units with battery
capacities greater than 20 AH have fused DC
output.
Self-contained units diversify your emergency
power sources. If a self-contained unit fails, it
affects a much smaller area than if a unit
running several remotes fails.
In addition, self-contained units may reduce
installation wiring costs by eliminating the low
voltage circuit required to connect the remote
heads.
Page 7
Remote Heads
Example 1:
Voltage Drop Tables
The following information is provided to assist
in planning layouts for emergency lighting
systems. The National Electrical Code limits
voltage drop to a maximum of 5 percent of
nominal. Thus, circuit runs must be of sufficient
size to maintain operating voltage when remote
fixtures and/or exit signs are connected to the
emergency lighting equipment. The table below
shows the length of wire run based on system
voltage, wire gauge and total wattage on the
run.
Formula: As per National Electrical Code
standards,
VD = 2 x L x I x R
1000
A 12-volt system using a 10-gauge wire will
operate four 12-watt lamps. Total watts on the
wire run is 48, length of run from table is 70
feet.
Longer Wire Runs
If loads are uniformly spaced along circuit path
(equal watts, equal distances), lengths in the
table can be increased by certain values.
Example 2:
Remote heads from Example 1 will be uniformly
spaced. Multiplier is 1.6 for four fixtures.
Maximum permissible length of wire run is 70'
x 1.6 or 112'.
Number of fixtures
Multiplier
Where:
L
I
R
VD
=
=
=
=
length of run in feet
current
resistance of material at 750C
voltage drop
2
3
4
5
1.33 1.5 1.6 1.67
To determine multiplier for six or more
fixtures, use the following formula:
Number of fixtures = n
Multiplier = 2n
n+1
6-VOLT SYSTEM
Total
watts
8
10
12
13
14
16
18
20
21
24
25
30
35
36
40
48
50
54
60
75
100
125
150
175
200
225
250
300
400
450
12
67
53
44
41
38
33
30
26
25
22
21
18
15
15
13
11
10
10
9
8
6
4
3
3
2
2
2
1
1
1
Wire size
10
8
6
length of wire run (feet)
106
169
268
85
135
214
70
112
178
65
110
165
60
96
153
53
84
134
47
75
120
42
67
107
40
64
102
35
56
89
32
54
86
28
45
71
24
39
62
24
38
61
21
33
53
17
28
44
17
27
43
16
26
41
14
22
36
11
18
29
9
14
22
6
10
17
5
9
14
4
7
12
4
6
10
3
6
9
3
5
8
2
4
7
2
3
5
1
3
4
12-VOLT SYSTEM
4
350
280
234
216
200
175
156
140
134
117
112
93
80
97
70
58
56
65
47
37
28
22
19
16
14
12
11
9
7
7
Total
watts
8
10
12
13
14
16
18
20
21
24
25
30
35
36
40
48
50
54
60
75
100
125
150
175
200
225
250
300
400
450
12
267
213
178
165
152
133
110
106
101
89
85
71
61
61
53
44
42
40
35
29
21
17
14
12
10
9
8
7
5
4
Wire size
10
8
6
length of wire run (feet)
425
675
1,073
339
540
858
283
450
715
260
415
660
242
385
613
212
337
536
190
300
475
169
270
429
161
257
408
141
225
357
136
215
340
112
180
285
97
154
245
97
154
244
84
135
214
70
112
178
68
108
170
64
102
163
52
90
140
45
72
114
34
54
86
27
43
68
23
36
57
19
30
49
17
27
43
15
24
38
14
21
34
11
18
28
8
13
21
7
12
19
24-VOLT SYSTEM
4
1,707
1.366
1,138
1,050
975
853
760
683
650
569
540
455
390
388
341
284
275
259
225
182
137
109
91
78
68
60
55
45
34
30
Total
watts
8
10
12
13
14
16
18
20
21
24
25
30
35
36
40
48
50
54
60
75
100
125
150
175
200
225
250
300
400
450
12
Wire size
10
8
6
length of wire run (feet)
1,068
1,698
2,701
4,293
854
1,358
2,161
3,435
712
1,132
1,801
2,862
660
1,040
1,668
2,640
610
970
1,543
2,453
534
849
1,350
2,146
440
760
1,200
1,900
427
679
1,080
1,717
407
647
1,029
1,635
356
566
900
1,431
340
544
860
1,360
284
448
720
1,140
244
388
616
980
242
386
614
976
213
339
540
858
178
283
450
715
168
272
432
680
162
257
410
651
140
208
360
560
116
180
288
456
84
136
216
344
68
108
172
274
56
92
144
228
48
77
123
196
40
68
108
172
37
60
96
152
32
52
84
136
26
44
72
112
21
34
54
85
19
30
48
76
4
6,830
5,464
4,553
4,200
3,902
3,415
3,040
2,732
2,601
2,276
2,160
1,810
1,560
1553
1,366
1,138
1,100
1,035
900
728
548
437
364
312
272
242
220
180
136
120
Page 8
Maintenance Feature Options
Standard Control Panel
Self-Diagnostics
(Available with the Select, Premium and Ultimate Option Packages)
A status LED and test switch are provided on all
units. To begin a test, press the test switch and
the lamps will come on. The status LED
indicates that the AC power is applied and the
unit is charging. The color of the status LED
indicates the charging state of the unit.
LED Indicator State
OFF
Green
Red
Condition
Unit is in emergency mode
Unit is in normal mode
Unit is in high charge mode
Control Panel
The NFPA 101 - Life Safety Code requires
emergency lighting to be tested for 30 seconds
every 30 days and 90 minutes once a year.
While the annual test has to be manual, the
monthly test is allowed to be an electronic selftest (a monthly visual inspection is still
required).
One benefit of the automatic test is lower
maintenance cost because maintenance
personnel no longer need to use ladders and
lifts to manually test the units on a monthly
basis. Only units that indicate a failure will
need to be inspected. A second benefit is
greater performance and reliability of the units
because manual testing is rarely performed.
Self-diagnostics assures that units are tested
and problems are identified.
Manual Test
To manually test, press the test button, lamps
will come on and a 30-second diagnostic test
will start. The status LED indicates the units
charging state if diagnostic failures are not
detected during the test.
Note: Unit must have adequate charge level to run test. If the unit
indicates inadequate charge when the test button is pressed, the unit
will need to be charged longer before a manual test can be
performed.
LED Indicator State
Condition
OFF
Green
Green flashing
Red
Unit is in emergency mode
Unit is in normal mode
Unit is in test mode
Unit is in normal high charge
mode
Battery failure
Lamp failure
Electronic failure
Temporary inadequate charge
Red flashing (single pulse)
Red flashing (double pulse)
Red flashing (triple pulse)
Red/green flashing
Control Panel with
Self-Diagnostics
Page 9
Maintenance Feature Options
Self-Test Schedule
The unit automatically performs a five-minute
self-diagnostic test every 30 days. The unit also
automatically performs a 30-minute selfdiagnostic test every six months.
Self-Test Rescheduling
If a self-test occurs at a time when it is desired
that the lamps not be on, the automatic selftest can be delayed for eight hours by pressing
the test switch once during the self-test.
Remote Test
(Available with the Extra Option Package)
When remote test is ordered, the unit is
equipped with a radio frequency receiver that
is designed to activate a 30-second test from up
to 35 feet away with the use of the hand-held
remote transmitter (ELA RTT). This eliminates
time spent climbing ladders or riding lifts to
test equipment. The ELA RTT must be ordered
as a separate accessory. A minimum of one per
job location is required.
Automatic Load Learning Feature
All self-diagnostic units are capable of
automatically determining the total connected
lamp current during the first scheduled selftest. After the unit saves this information, a
lamp failure will be indicated anytime a greater
than 10 percent reduction in total load current
is detected.
The load learn function can also be initiated
manually by pressing and holding the test
switch for 15 seconds, during this period the
lamps will be on. The unit will signal that the
total lamp current has been saved by turning
off the lamps at the end of the 15 second
period. This manual load learn feature should
be used whenever the total connected lamp
load to the unit is changed.
ELA RTT
Note: Manual load learn functions will not function if there is
inadequate charge on the battery. If this is the case, wait until the
battery enters trickle charge mode and then initiate manual load
learn function.
Clearing Failure Indications
Once the failed component has been replaced,
press the test button once to clear the failure
indication.
Page 10
Environmental Condition Options
Now available with a NEMA 4X rating, Indura
4X provides protection against falling dirt, rain,
sleet, snow, windblown dust, splashing water,
hose-directed water, corrosion, and the damage
caused by the external formation of ice on the
enclosure.
Discharge Capacity versus Temperature
100
Capacity (%)
NEMA 4X
80
60
40
20
0
What is NEMA 4X?
NEMA is an organization responsible for setting
enclosure standards. UL has adopted these
standards; thus the term "NEMA 4X." UL
provides a UL50, 4 and 4X listing based on the
product passing the below tests:
1. Hosedown test - a 1" diameter hose delivers
65 gallons of water per minute at a distance of
10-12 feet.
2. Corrosion resistance - the product itself is
subjected to a salt spray for 200 hours.
3. Icing Test - the product is put in temperatures of -6.70C and sprayed down, thus causing
ice to develop on the lens and housing. Product
is acceptable if while ice laden, the product is
operable and remains undamaged.
4. Gasket test - gasket must maintain strength of
not less than 75% when subjected to circulating
air in a temperature of 69-700C.
Cooler Temperatures Lower
Discharge Capacity
Lead-calcium batteries are designed for dry
locations with temperature ranges from 60°90°F. Since the battery is the main temperaturesensitive element and many industrial environments experience varying temperature ranges,
it is important to know the effects on battery life
and capacity.
Lead-calcium batteries operate on a electrochemical reaction, which converts chemical
energy to electric energy. The electrochemical
reaction is reduced as the temperature lowers.
Thus, the available discharge capacity in a
battery is reduced at lower temperatures.
20
40
60
80
100
Temperature (oF)
Temperature
770F
320F
50 F
Capacity*
100%
80%
65%
* Based on the 90-minute rate
Cold Weather Condition
(Available with the Ultimate Option Package)
To prevent this from happening, Indura offers
the Ultimate option package which includes a
high-temperature nickel-cadmium battery or
high-ambient lead-calcium battery rated for
temperatures between -400F (-400C) and 1310F
(550C). These special batteries are available on
the IND618, IND1236, IND12100 and INDX618,
INDX1236, and INDX12100 products. A battery
blanket and heater are used to accomplish this
rating without de-rating battery capacity.
Hotter Temperatures Reduce
Battery Life, Not Capacity
While lower temperatures reduce capacity with
no adverse effect on battery life, warmer
temperatures have no adverse effect on
capacity, but they do diminish battery life. The
life of standard lead-calcium batteries is greatly
reduced when temperatures are consistently
above 900F.
The Indura Premium Option package utilizes a
high-performance nickel-cadmium battery or
high ambient lead-calcium battery especially
designed for environments with extreme
fluctuation in temperature. The Premium
option is UL listed from 32oF (0oC) to 131oF
(55oC). While battery life is still affected at
higher temperatures, a good battery life can still
be achieved with these batteries. The following
chart reflects battery life at given temperatures
assuming exposure to this temperature 24
hours a day, 7 days a week and 365 days a year.
Page 11
Environmental Conditions Options
Exposure to a given temperature 24/7/365 is extremely unlikely for an unconditioned space.
Unconditioned facilities generally experience the same temperature fluctuations as outdoor
applications, except tempered to the warm side to varying degrees, depending on the ventilation of the
facility and the height inside the facility at which the temperature is being measured. Below are
examples of how to calculate the life of the high temperature batteries, depending on the amount of
time during a year that it is exposed to a given temperature. For each application, it is important to
obtain the average temperature for each season of the year and measure the temperature variation at
the desired mounting height of the fixture to be able to apply these calculations.
Example 1:
May - Oct (Day)
May - Oct (Evening)
Nov - April (Day)
Nov - April (Evening)
Average
Temperature
1300F (550C)
860F (300C)
0
Life
Expectancy
1.6 yrs.
9 yrs.
13 yrs.
13 yrs.
0
75 F (25 C)
500F (100C)
% of time in
Temperature
25%
25%
25%
25%
Total Life
Range Expectancy
0.40
2.25
3.25
3.25
9.15 years
Example 1: The average temperature during six months of the year (May-October) from 8 a.m. - 8 p.m. in a warehouse is 1300F (550C). At this
temperature, the life expectancy would be 1.6 years. The average evening temperature in these same months in the same warehouse application from
8:01 p.m. - 7:59 a.m. is 860F (300C). At this temperature, the life expectancy would be 9 years. For the months of November through April during
daytime hours, the average temperature is 750F (250C) in the warehouse. The life expectancy at this temperature would be 13 years. While in the
evening, the average temperature is 500F (100C) and the life expectancy is 13 years. If we look at an entire year, it is 1300F for 25% of the time, 860F for
another 25% of the year, 750F for another 25% and 500F for the remaining 25%. If we average out the life expectancy for each quarter, this will give us a
total life expectancy of 9.15 years.
Life Expectancy of High Ambient Batteries
with 24/7/365 Exposure
Life Expectancy
(yrs)
14
12
10
Damp Location Conditions
For moist or humid areas, a damp location
listing is needed.
All Indura units come standard UL listed for
damp locations.
8
6
For areas requiring wet location, the NEMA 4X
listing on Indura 4X covers these requirements.
4
2
0
60
77
86
104
122
131
Battery Temperature (oF)
Temperature
600F (200C)
770F (250C)
860F (300C)
1040F (400C)
1220F (500C)
1310F (550C)
Avg. Life (yrs)
13.0
13.0
9.0
5.0
2.5
1.6
Page 12
Available Option Packages
Time Delay
Audible Failure Indication
(Available with all Option Packages)
(Available with the Select, Premium and Ultimate Option Packages)
HID fixtures normally require a time period of
5 to 20 minutes to re-strike after momentary
power interruptions or brownouts significant
enough to cause the HID lamp to lose its arc.
Therefore, it is necessary to light the path of
egress during the re-strike time period. This
may be especially critical in areas that
experience frequent power interruptions or
brownouts. The time delay option meets this
requirement by maintaining emergency
operation for an additional 20 minutes after
normal power is restored.
In units equipped with Audible Failure
Indication, failure indications are accompanied
by a 15-second-long alarm tone every 15
minutes. The tone stops when the failure
indication is cleared or the AFI board is
disabled.
Other possible solutions to this application are
to order the HID fixtures with a QRS (Quartz
Re-Strike System) option or QRSTD option.
The QRS option automatically switches the
120-volt quartz lamp on if there is a power
interruption or brownout significant enough to
cause the HID lamp to drop out. The 120-volt
quartz lamp stays on until the HID fixture restrikes. QRS does not energize during cold start
of HID luminaires. Wiring for the quartz lamp
is internal to the ballast assembly; the 120 volts
required to operate the quartz lamp is supplied
by the ballast. Wattage of the quartz lamp
(supplied by others) should not exceed that of
the HID source.
The QRSTD option functions the same as the
QRS, except for the quartz lamp which
energizes under hot and cold starting
conditions. The quartz lamp will come on
when a luminaire is energized and will remain
on for two minutes after start-up or re-strike.
Both the QRS and QRSTD options are
significantly more expensive than the TD
option, especially when you add in the price of
the quartz lamp. However, depending on the
illumination requirements, the fixture, and the
fixture mounting height requirements, it is
possible that the QRS option would be
required. Evaluate each particular job to
determine which option provides the best
performance.
Note: QRS does not provide emergency illumination in the case of
a power failure.
Indura and Indura 4X Option Packages
The Extra Option Package features remote test
and time delay. (10°C to 40°C).
The Select Option Package features selfdiagnostics, time-delay, and audible failure
indication. (10°C to 40°C).
The Premium Option Package features high
temperature nickel-cadmium battery or high
ambient lead-calcium battery. This package
also includes self-diagnostics, time delay and
audible failure indication. UL listed for 0° to
55°C.
The Ultimate Option Package features high
temperature nickel-cadmium battery or high
ambient lead-calcium battery with heater,
thermostat and battery blanket. This package
also includes self-diagnostics, time delay and
audible failure indication. UL listed for -40° to
55°C.
* Damp location comes standard on all Indura
products, while the hosedown NEMA 4X listing
comes standard on all Indura 4X products.
** For more information on the above features listed
within each package, please reference the previous
pages containing descriptions of each.
For Additional Information
Visit our website at www.lithonia.com/indura
Page 13
Lithonia Lighting
© 2001 Acuity Lighting Group, Inc., Rev. 5/04
Form No. 680.185
REF-120
680.185.pmd
Acuity Lighting Group, Inc.
Emergency Lighting Systems
One Lithonia Way, Decatur, GA 30035
Phone: 800-334-8694
In Canada: 160 avenue Labrosse, Point-Claire, P.Q. H9R 1A1
www.lithonia.com