Product description
Our 277VAC VTH series is an excellent quality Triac Dimmable Power Supply. Compatible with most AC wall dimmer including Leviton, Lutron and most other household dimmers. 24v dimmable LED driver Can be used for many LED lights including strip light, puck light, module light,led bar light and many other applications. Requires no minimum load and it is very quite without any buzz or humming noise.
Warning: Do not overload. It is recommended not to exceed 80% of dimmable driver's capacity. Please calculate your load before connecting the power.
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Specification |
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Output constant voltage Input voltage range 100-277VAC Built-in PFC function / PF>0.97 E fficiency > 85% / Dimming range: 0~100% Protections:short circuit/over voltage/over heat PWM output, does not change the color index IP20 design for indoor installations Cooling by free air convection / Flicker-free Work with leading edge and trailing edge TRIAC dimmers Strong compatibility, flicker-free dimming Suitable for LED lighting and moving sign applications Compliance to worldwide safety regulations for lightings. Compatible with Forward phase, Reverse phase, Triac, MLV, ELV Dimmers 7 years warranty NON-waterproof use for indoor dry or damp location only |
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model
SMT-012-120VTH
SMT-024-120VTH
Output
DC Voltage
12V
24V
Voltage Accuracy
±0.5V
±0.5V
Voltage Regulation
±0.5%
Load Regulation
±2%
Rated current
10.00A
5.00A
Rated power
120W
Input
Voltage Range
100~277V AC
Frequency Range
47～63HZ
Power Factor ( Typ.）
0.99@120VAC 0.96@277VAC
0.98@120VAC 0.96@277VAC
Full Load Efficiency（Typ.）
>82%
>83%
AC Current（Typ.）
1.7A@100VAC
Leakage current
<0.50mA
Protection
Short Circuit
shut down o/p voltage, re-power on to recover after fault condition is removed
Over Loading
≤120% constant current limiting, auto-recovery
Over temperature
100℃±10℃ shut down o/p voltage, automatically recover after cooling.
Over voltage
≦140VAC(100~130V) , ≦270VAC(170~277V)
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, UL1012
Withstand voltage
I/P-O/P:3.75KVAC I/P-FG:1.88KVAC O/P-FG:0.5KVAC
Isolation resistance
I/P-O/P：100MΩ/500VDC/25℃/70%RH
EMC EMISSION
FCC Part 15 B
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,8,11,EN61547 Alight industry level （surge4KV）
Others
Weight
1.3Kg
Size
220*93*41mm (L*W*H)
packing
329*279*176mm , 10PCS/ctn
Notes
1. All parameters NOT specially mentioned are measured at 110V/277VAC input , rated load and
25℃of ambient temperature.
2. Ripple& noise are measured at 20MHz of bandwidth by using a 12”twisted
pair-wire terminated with a 0.1uf &47uf parallel capacitor.
3. Tolerance:includes set us tolerance,line regulation and load regulation .
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Mechanical Specification for dimmable driver
※Input:18AWG Black and White to be connected to AC L and N ,Green wire go ground,
※Output: Red is（DIM+）,Black is（DIM-）
※Note: Any other requests we can customized
Dimming Operation for 24v dimmable led driver
※Output constant current level can be adjusted through input terminal of the AC phase line(L) by connection a triac
dimmer.
※Compatible with Leading edge or trailing edge triac dimmers, but trailing edge dimmers work better..
※Please try to use dimmers with power at least 1.5 times as the output power of the driver.
Derating Curve for 24v dimmable led driver
※Load carried in accordance with the load derating curve, according to the ambient temperature derating, in order to
extend the working life.
Simple Connection Diagram
