277vac 24volt led spotlight transformer with junction box
This 24vdc led transformer is easy installation. The 24-volt constant voltage driver has 7 years warranty is encased in a durable, vented aluminum enclosure.
Specification:
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model
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SMT-012-096VTH
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SMT-024-096VTH
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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 Accuracy
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±0.5V
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±0.5V
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Voltage Regulation
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±0.5%
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Rated current
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8.00A
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4.0A
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Load Regulation
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±1%
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Rated power
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96W
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96W
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Input
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Voltage Range
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100-277V AC
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Frequency Range
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47～63HZ
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Power Factor ( Typ.）
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0.98@120VAC 0.95@277VAC
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0.98@120VAC 0.95@277VAC
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Full Load Efficiency（Typ.）
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>83%
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>83%
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AC Current（Typ.）
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0.9A/110VAC
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Inrush Current （Typ.）
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14A, 50%, 780us
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Leakage current
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<0.50mA
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Over temperature
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100℃±10℃ shut down o/p voltage, automatically recover after cooling.
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Short Circuit
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shut down o/p voltage, re-power on to recover after fault condition removed
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Over Loading
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≤120% Hiccup mode,recovers automatically after fault condition is removed
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Over voltage
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≦140VAC(90~135V) , ≦285VAC(170~277V)
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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
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±0.03%/℃（0～50℃）
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Vibration
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10～500Hz，2G 10min./1 cycle，period for 60min.
each along X,Y,Z axes
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Safety&EMC
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Safety standards
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UL8750+UL1310
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Withstand voltage
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I/P-O/P:3.75KVAC
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Isolation resistance
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I/P-O/P：100MΩ/500VDC/25℃/70%RH
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EMC EMISSION
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FCC Part 15 B
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EMC IMMUNITY
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Compliance to EN55015; EN61000-4-2,3,4,5,6,8,11, EN61547
Alight industry level （surge4KV）
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Others
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Weight
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About 1.1Kg
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Size
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220*93*41mm（L*W*H）
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packing
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10PCS/CTN
（L*W*H）
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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. 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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Product size:
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:
The 12v lighting power supply 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.
Connecting diagram:
Simple diagram:
FAQ:
1. Is there a Tc point on the driver? And do you have a lifetime derating curve for case temperature? At 60 Watt load we are seeing a case temperature of 60°C.
Answer: The TC point is right above on the led transformer when you test it. So far, we didn't show it on the lables. If it is necessary for you, we will show TC point on the next orders, ok？Enclosed please find the picture of derating curve for your reference.
2. What is the wire gauge that fits into the ETL Triac Dimmable LED Driver?
Answer: 14-26 AWG
3. What is the difference between the 20w/45w UL and 24w/48w ETL model?
Answer:
-- when you install a 20w/45w UL led driver in your led light you should consider abbot min. 55% load limtation. If it less than 55%, the led light will have flick problem. But the 20w/45w ETL model is no load limitation. You can load it in the led light 1-48w.
-- the height of 24w(20mm)/48w(24mm) is lower than 20w(28mm)/45w(34mm).
4. Just to confirm the drivers are Three In One Dimming Function Compatible With Leading-edge/Trailing-edge Dimmer, No Flicker? No Min load?
Answer: Our Triac dimmable led drivers are compatible with Leading-edge/Trailing-edge Dimmer,no flicker,no min load.
5. Does your company have any Triac dimmers recommendation for European market?
1） Busch-2250UGIRA-030200
2） Berker-2875GUNG266GDECLIPSAL (奇胜前沿、后沿）: 32E450LM-TM 32E450L-T
C2032E450L-T SC2032E450L-T SL2032E450L-T
P2032E450LM-TM P2032E450L-T 1920E450L
3） CLIPSAL
4） Lutron (220VAC types)
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)
