12vdc 30w transformer power supply with dimming function
Pulse width modulation (PWM) is a method through adjust to make the LED dimming power supply current to square wave, the pulse width is variable, and the modulation of the pulse width is converted into a time for modulating the continuous illumination of the LED lamp, at the same time, the input power is changed, thereby achieving energy saving and well dimming.
Feature
·Output constant voltage
·Input voltage range 100-277VAC
·UL, cUL listed, Class 2, Class P standard approval
·Built-in PFC function / Efficiency > 80% / PF> 0.99
·Dimming range: 0~100%
·Protections:short circuit/over voltage/over heat
·IP20 plastic case design for indoor dry, damp environment installations
·Cooling by free air convection
·0-10V dimming: 0-10V/1-10V/Potentiometer/10V PWM 4 in 1
·Strong compatibility, flicker-free dimming
·Suitable for LED lighting and moving sign applications Class 2, Class P,Type HL standard
·Compliance to worldwide safety regulations for lighting 30W,36W,60W,96W,100W available
·7 years warranty
Specification
model
SMT-012-030VDSP
SMT-024-030VDSP
Output
DC Voltage
12VDC
24VDC
Voltage Accuracy
±5%
±5%
Rated current
2.5Amp
1.25Amp
Rated power
30W
30W
Voltage Regulation
±0.5%
Load Regulation
±1%
±1%
Input
Voltage Range
100-277 VAC
Frequency Range
47～63HZ
Power Factor ( Typ.）
PF≧0.99/110V ; PF≧0.98/277V
Full Load Efficiency（Typ.）
>79%
>81%
THD(Typ. ) @ full load
<10%@120VAC <15%@277VAC
AC Current（Typ.）
0.5A
Inrush Current（Typ.）
5A, 50%, 960us @120VAC; 13A, 50% , 1ms @277VAC
Leakage current
﹤0.5mA
Protection
Short Circuit
Hiccup mode, recovers automatically after fault condition
is removed.
Over Loading
≤120% shut down o/p voltage, re-power on to recover
Over temperature
100℃±10℃ shut down o/p voltage, automatically recover after cooling.
Environment
Working TEMP.
-40～+60℃
Working Humidity
20～95%RH,non-condensing
Storage TEM.,Humidity
-40～+80℃，10～95%RH
TEMP.coefficient
±0.03%/℃（0～50℃）
Vibration
10～500Hz, 2G 10min./1 cycle,period for 60min. each along X,Y,Z axes
Safety&EMC
Safety standards
UL8750 +UL 1310, CAN/CSA-C22.2 No.250.13
Withstand voltage
I/P-O/P:1.88KVac
Isolation resistance
I/P-O/P:100MΩ/500VDC/25℃/70%RH
EMC EMISSION
FCC 47 CFR Part 15 ,Subpart B
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,,11, ,
Alight industry level
Others
Weight
0.20Kg
Size
260*32*20mm (L*W*H)
packing
290*270*160mm , 50PCS/CTN
Notes
1. All parameters NOT specially mentioned are measured at 110VAC, 277VAC input ,
Rated load and 25℃of ambient temperature.
2. Tolerance: includes set up tolerance, line regulation and load regulation .
The power supply is considered as a component that will be operated in combination with final Equipment. Since EMC performance will be affected by the complete installation, the final equipment manufactures must be-qualify EMC Directive on the complete installation again.
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Mechanical Specification
Derating Curve
Connecting Diagram
