High input 110-277VAC 250W triac dimmable constant voltage LED power supply
UL listed 12v 24v triac dimmable led driver have high efficiency,high reliability,save energy,projected environment,long life time.Follow the gloabl lighting safety regulations.
Specification
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Model
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SMT-012-250VTHW
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SMT-024-250VTHW
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Output
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DC Voltage
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12V
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24V
|
|
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Voltage Tolerance
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±0.5V
|
|
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Voltage Regulation
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±0.5%
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|
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Voltage Tolerance
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±0.5V
|
|
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Load Regulation
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±2%
±1%
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±1%
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|
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Rated current
|
20.83A
|
10.41A
|
|
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Rated power
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250W
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Input
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Voltage Range
|
100-277VAC
|
|
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Frequency Range
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47～63HZ
|
|
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Power Factor（Typ.）@ full load
|
0.98@120VAC 0.97@277VAC
|
0.98@120VAC 0.97@277VAC
|
|
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THD（Typ.）@ full load
|
<20%
|
|
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Inrush Current （Typ.）
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20A, 50%, 1.4ms
|
|
|
Full Load
Efficiency（Typ.）
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>83%
|
>83%
|
|
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AC Current（Typ.）
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2.56A@110VAC 1.76A 1.74A
|
|
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Leakage current
|
<0.50mA
|
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Protection
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Short Circuit
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shut down o/p voltage, re-power on to recover after fault condition
is removed
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|
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Over load
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≤120% constant current limiting, auto-recovery
|
|
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Over temperature
|
100℃±10℃ shut down o/p voltage, automatically recover after cooling.
|
|
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Over Current
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≤1.4*I out
|
|
Environment
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Working TEMP.
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-40～+60℃
|
|
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Working Humidity
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20～90%RH,non-condensing
|
|
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Storage TEM.,Humidity
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-40～+80℃，10～95%RH
|
|
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TEMP.coefficient
|
±0.03%/℃（0～50℃）
|
|
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Vibration
|
10～500Hz 2G 10min./1 cycle，period for 60min.each along X,
Y,Z axes
|
|
Safety&EMC
|
Safety standards
|
UL8750
|
|
|
Withstand voltage
|
I/P-O/P: 3.00KVAC
|
|
|
Isolation resistance
|
I/P-O/P：100MΩ/500VDC/25℃/70%RH
|
|
|
EMC EMISSION
|
Compliance to FCC Part 15 B
|
|
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EMC IMMUNITY
|
EN61000-4-2,3,4,5,6,11（Surge 4KV）
|
|
Others
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Weight
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1.75Kg
|
|
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Size
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276*78*47mm (L*W*H)
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|
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packaging
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10PCS/CTN
385*335*200mm 20PCS/CTN
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Notes
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1. All parameters NOT specially mentioned are measured at 110V & 277VAC input , rated
load and 25℃of ambient temperature.
2..Tolerance:includes set us tolerance,line regulation and load regulation.
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Label
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Mechanical Specification
Input: 3 * 18AWG Black and White to be connected to AC L and N ,Green wire go ground,
Output: Red is（DIM+）,Black is（DIM-）/ 2 * UL 14AWG power cord
Dimming Operation
Output PWM of output voltage can be adjusted through input terminal of the AC phase line(L) by connection a triac dimmer.
Compatible with Leading edge or Reverse phase, trailing edge triac dimmers, Magnetic low voltage dimmers, Electric low voltage Dimmers..
Please try to use dimmers with power at least 1.5 times as the output power of the driver.
Connecting Diagram
