1
ELECTRICAL SPECIFICATIONS
Input
Input Voltage (VAC)
347V-480V (+/- 10%)
Frequency Range (Hz)
50 – 60 Hz (+/- 10%)
347V
480V
Input Current (A)
0.6
0.45
THD @ Full load
<15%
<20%
Power Factor @ Full load
>0.95
>0.95
Efficiency @ Full load
≥91%
≥91%
Inrush Current (Apk)
48A, 400µs
Output
Output Current (mA)
350-800mA
1mA resolution
(programmable)
Output Voltage (VDC)
82-280VDC
Output Ripple Current
<30% @ 1250mA
Max. Output power (W)
180W (model dependent)
LED Power-up time
< 0.5sec
Load Regulation
<5%
Line Regulation
<5%
Over voltage protection
Yes, non latching
Max Vout 285V
Over Power Protection
Current Foldback @185W
(+/- 5%) to operate in
constant power mode
Output short-circuit
protection
Yes, latching
Dimming
Dimming Control
0 – 10V (Isolated)*
AstroDIM
Dimming Range
10-100% (60mA min)
Dimming Type
Analog
Source/Sink Current
1mA
* Class 2 or non-Class 2 wiring allowed
GENERAL INFORMATION
Item Number
79208
Type
Constant Current
Output Power
180W (Max.)
Programming tool
51645: Software
Programmable features
Output current
Dimming level
LED thermal protection
AstroDIM
LEDSet Gen2
Constant Lumen output
End of life indicator
ELECTRICAL SPECIFICATIONS
LED thermal protection (NTC)
NTC value active range
≤ 25kΩ
Output level minimum
User defined
ENVIRONMENTAL SPECIFICATIONS
Ambient Operating
Temperature
-40 ºC to 55 ºC
Case Temperature (Tc)
85ºC**
90°C (max)
Max. Storage Temp.
70ºC
Max. Relative Humidity (%)
95% non condensing
Transient Protection
ANSI C62.41 Cat.B
6.0kV*
IP Rating
IP66
UL Environmental Rating
Damp & Wet
UL File number
E320395
EMI Compliance
FCC Part 15 Class A
Sound Rating
Class A
**- Warranty applicable only at 85ºC
* -Meets only 4kV for common mode combination wave
OPTOTRONIC® LED Power Supply
OT180W/347- 480/800C/2DIMLT2/P6 - Technical Specifications
www.osram-americas.com/OPTOTRONIC
2
WIRING DIAGRAM
Note 1: Maximum suggested remote mounting distance is 32 feet. For additional information on further distances and EMI
compliance reference application note LED126.
Note 2: The Dimming input is isolated and will allow Class 2 or non-Class 2 wiring across Purple and Gray wires
MECHANICAL DIAGRAM
MECHANICAL DIAGRAM
Length
9.47” (240.5mm)
Width
2.36” (60mm)
Height
1.50” (38.1mm)
Mounting length
8.9” (226.3mm)
Mounting slot width
0.34” (8.7mm)
3
OPERATING RANGE
DIMMING CURVE
*The absolute minimum current the driver can deliver is 60mA
50
100
150
200
250
300
300 400 500 600 700 800 900
Output Voltage [V]
Output Current [mA]
Pf >0.9 and THD <20% at347V and 480V
0
20
40
60
80
100
0 1 2 3 4 5 6 7 8 9 10
% of Output current
Dim Voltage [V]
4
EFFICIENCY VS OUTPUT VOLTAGE
80.00
82.00
84.00
86.00
88.00
90.00
92.00
94.00
70 100 130 160 190 220 250 280
Efficency [%]
Output Voltage [V]
Efficiency @ 347V
800mA
530mA
350mA
76
78
80
82
84
86
88
90
92
50 80 110 140 170 200 230 260 290 320
Efficiency [%]
Output Voltage [V]
Efficency @ 480V
800mA
530mA
350mA
5
POWER FACTOR PERFORMANCE
0.82
0.84
0.86
0.88
0.9
0.92
0.94
0.96
0.98
1
50 70 90 110 130 150 170 190
Power Factor
Output Power [W]
347V
480V
0.82
0.84
0.86
0.88
0.9
0.92
0.94
0.96
0.98
1
70 90 110 130 150 170 190 210 230
Power Factor
Output Voltage [V]
347V
480V
6
THD PERFORMANCE
8
10
12
14
16
18
20
22
24
26
60 80 100 120 140 160 180
THD[%]
Output Power [W]
347V
480V
8
9
10
11
12
13
14
15
16
17
280 305 330 355 380 405 430 455 480 505
THD [%]
Input Voltage [V]
7
LED THERMAL PROTECTION (NTC) CHARACTERISTIC
The LED thermal protection feature of the OT180W helps reduce the temperature of the LED module by reducing the output
current in case of abnormal temperature conditions. To use this feature a third party NTC thermistor should be connected to the
LED power supply as shown in the wiring diagram below.
In the end application, care must be taken to place the NTC thermistor close to the hottest spot on the LED module. If LED
thermal protection is not required the NTC port on the LED power supply connector can be left open.
Vishay, EPCOS, Murata, Panasonic are some of the manufacturers of NTC thermistor. EPCOS part number for reference only
B57164K153J (15kΩ @ 25°C). Murata part number for reference only - NCP03XH223J05RL (22kΩ @ 25°C)
Note 2: Graphs for reference. The de-rating limits can be programmed using the OT Programmer
Derating start = 6.3kΩ; Derating end = 4.3kΩ; Min output level = 10%
AstroDIM
AstroDIM is an autonomous five level (1 Power ON & 4 Dimming levels) dimming protocol. It provides multi-stage night-
time power reduction based on an internal timer; there is no need for an external control infrastructure. The ECG is
automatically aligned to the on and off times for the street lighting and provide a defined output for the particular period of
time. Compared with conventional systems there are significant cost savings. AstroDIM is designed for dimming without any
external control wiring. Therefore, AstroDIM helps to save energy, extend the life of the driver and the LED module and
reduce light pollution, even if only a power line is available. In AstroDIM operation, the driver executes a preset dimming
profile, which can be reconfigured via the OT Programming Tool. The autonomous dimming is regulated by an integrated
timer (no real-time clock), which adjusts the dimming profile according to the previous night (operation from switch-on to
switch-off).
0
20
40
60
80
100
44.555.566.5
% Of Output Current
RNTC in kΩ
8
LEDset 2
LEDset (Gen2) is an analog interface, allowing basic communication between a LED control gear and one or more LED
modules. It allows setting the output current of the LED driver by providing a highly accurate voltage reference
(Vset) to the driver. The interface supports the following functions:
Output current setting of the constant current LED control gear to single LED modules as well as to
series/parallel connected LED modules
Best matching of LED control gear and modules working point
Self-configuration according to system structure, automatic tracking of technology development
Easy mode of operation
Additional monitoring & protection features (e.g. thermal protection of the LED modules)
Therefore, the typical applications of this interface are single or multiple LED module parallel connections, offering an
increasing choice of modular capabilities and low cost thermal protections circuits.
For detailed information on LEDset interface please refer to Technical Application guide LEDset interface (LED 409)
Note 3: When the LEDset feature is enabled, the LED Thermal protection (NTC) feature is disabled.
CONSTANT LUMEN MAINTENANCE
The Constant Lumen Maintenance feature of the OT180W helps to maintain the required lumen output of the fixture at a
constant level throughout its lifetime. In general LED’s lumen output will depreciate over time and in order to maintain
sufficient light level towards the end of lifetime, the LED’s are driven at high current initially and will result in more energy
consumption. The constant lumen maintenance will give the flexibility to drive the LEDs at optimal driving current throughout
its lifetime. This helps in energy savings, constant light output and enhanced reliability of the system.
Note 4: A detailed step-by-step instructions are outlined in the ‘OT Programmer User Manual V2.1’
END OF LIFE INDICATOR
The End-of-Life indicator feature helps the end user to receive a signal from the fixture indicating that it has reached its
programmed life-time. After the LED driver reaches the programmed life-time, whenever it is turned ON, it stays at ‘Dim’
level (10%) for 10 minutes and reaches its appropriate level.
9
LIFETIME VS CASE TEMPERATURE
DIMMER COMPATIBILITY
Manufacturer
Part no
Encelium EMS
EN-LCM-1R10V-GB2-BK
EN-LCM-1R10V-GB2-BK/DR
EN-ALC-1R10V-GB2-BK
EN-ALC-1R10V-GB2-BK-DR
SYLVANIA
ELMC-SL3W-TVWBX/UNV
Leviton
IP710-DLX
Lutron
DVTV-XX
Wattstopper
ADF-120277
Synergy lighting Controls
ISD BC
Note 5: The absence of a dimmer from this chart does not necessarily imply incompatibility. Please reference the dimmer
manufacturer’s instructions for installation.
0
20
40
60
80
100
120
30 40 50 60 70 80 90
Life time (kHrs)
Case Temperature (°C)
10
UL CONDITIONS OF ACCEPTABILITY
Conditions of Acceptability – When installed in the end-product, consideration shall be given to the following:
Use – For use only in (or with) complete equipment where the acceptability of the combination is determined by UL LLC.
Rated output loading for these products was achieved using electronic loads.
The temperature tests were performed at nominal 40°C ambient for TL Type reference temperatures. These models were
also tested at elevated temperatures and the Tc applied for non-TL applications for these models is 90°C.
non-TL Type application:
Model No.
Test temperature
Tc rating at elevated temp.
OT180W/347-480/1250C/2DIMLT2/P6
46.7°C
90°C
OT180W/347-480/800C/2DIMLT2/P6
52.6°C
90°C
As part of temperature testing, the case temperature at Tc was monitored. During the normal temperature test of the end
product, the temperature at Tc is to be monitored. The absolute value at TC cannot exceed the Specified Tref, noted in
product characteristics table for a TL application.
These products are intended for building in. Acceptability of the LED driver- with respect to mounting, spacing,
casualty, temperature and segregation- is to be determined as part of the end device evaluation.
These products are provided with 18AWG leads, refer to descriptive pages for input and output connections.
Acceptability of the leads relative to strain relief and secureness, is to be determined as part of the end device evaluation.
These products are dimmable using a low voltage 0-10 V or a DALI proprietary interface. This interface is a sink, since
the interface circuit operates from an external source of supply.
The interface circuit has been evaluated for isolation from primary (input) and secondary (output) circuits with spacings
based on the maximum rated branch supply, 347/480 Vac. A Dielectric test was applied to verify spacing in the dimming
circuit, at 2500Vac.
The PWB spacings for use in wet locations have been evaluated to UL8750 spacing requirements. The Unit is
completely potted spacing requirements comply with Table 7.4 in UL8750, Parts Potted or subsequently coated.
These drivers are Type TL rated and shall be marked with a TC point on the label for temperatures recorded during
temperature testing performed in a 40°C ambient.
Model No.
Tc point on label, °C
OT180W/347-480/XXXC/2DIMLT2/P6 (XXXC- 800mA max)
90/76
OT180W/347-480/YYYYC/2DIMLT2/P6 (YYYY= 1250mA max)
90/83
These Drivers are 100% potted refer to ILL. 1 and 2 for assembly drawings demonstrating amount of potting applied
WARRANTY
OPTOTRONIC® products are covered by our LED Module, OPTOTRONIC Power Supply or Control Warranty. For additional
details, refer to the latest version of the warranty (LED089) available at www.osram-americas.com/optotronic