UL listed 277vac 12 volt dc transformer for led strip lights
Features
·Output constant voltage type
·Input voltage range 100-277VAC
·Built-in PFC function / PF>0.97 / Efficiency >88%
·Protections:short circuit/over voltage/over heat
·IP67 design for indoor or outdoor installations
·Cooling by free air convection
·Suitable for LED lighting and moving sign applications
·Compliance to worldwide safety regulations for lightings.
·7 years warranty
·UL/cUL listed, Class P, Type HL approval
Specification
|
Model
|
SMT-012-250VWN
|
SMT-024-250VWN
|
|
Output
|
DC Voltage
|
12V
|
24V
|
|
Voltage Tolerance
|
±0.5V
|
|
Voltage Regulation
|
±0.5%
|
|
Voltage Tolerance
|
±0.5V
|
|
Load Regulation
|
±2%
±1%
|
±1%
|
|
Rated current
|
20.83A
|
10.41A
|
|
Rated power
|
250W
|
|
Input
|
Voltage Range
|
100-277VAC
|
|
Frequency Range
|
47～63HZ
|
|
Power Factor(Typ.)@ full load
|
0.98@120VAC 0.97@277VAC
|
0.98@120VAC 0.97@277VAC
|
|
THD（Typ.）@ full load
|
<20%
|
|
Inrush Current （Typ.）
|
20A, 50%, 1.4ms
|
|
Full Load
Efficiency（Typ.）
|
>88%
|
>89%
|
|
AC Current（Typ.）
|
3.4A@110VAC 1.76A
|
|
Leakage current
|
<0.50mA
|
|
Protection
|
Short Circuit
|
shut down o/p voltage, re-power on to recover after fault condition
is removed
|
|
Over load
|
≤120% constant current limiting, auto-recovery
|
|
Over temperature
|
100℃±10℃ shut down o/p voltage, automatically recover after cooling.
|
|
Over Current
|
≤1.4*I out
|
|
Environment
|
Working TEMP.
|
-40～+60℃
|
|
Working Humidity
|
20～90%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
|
|
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
|
|
EMC IMMUNITY
|
EN61000-4-2,3,4,5,6,11（Surge 4KV）
|
|
Others
|
Weight
|
1.75Kg
|
|
Size
|
276*78*47mm (L*W*H)
|
|
packaging
|
10PCS/CTN
385*335*200mm 20PCS/CTN
|
|
Notes
|
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.
|
Label
|
|
Connection diagram:
Certifications
FAQ
1. If the connection load less than 55% for the load limitation led driver, what will happen?
Answer: If you take our 1.0V triac dimmable led drivers, the led light will have flick problem.
2. Can we make our company information on the label?
Answer:
--As per the policy of ETL/UL, we can not make changes on the labels at liberty. If we make changes as your requirement , then our company will be punished if the ETL/UL department discover it . Really sorry for that and caused you so much trouble..
--If making changes on the labels are necessary for your company, I suggest you multi-list of our ETL/UL certification , then we can help you design the new label as requested.
More information if you would like to know Smarts Electronics’ triac dimmable led driver, you can login http://www.smarts-electronics.com/ Or contact with Mr. Steven(skype: steven821228 mail:steven@smartselectronic.com.cn)
