electric 277v ac 12v dc transformer paried with junction box
Smarts Electronics' AC to DC 100-277vac 12 Volt dimmable LED drivers for your choices. Dimmable 12v transformers are designed for a broad range of applications and industries where a reliable dimming function is required. Also you can power your LED lights with our LED Drivers. Now, look through our product lists and find your 12 VDC dimmable LED power supply. Power Factor 0.98, UL Recognized,5 years warranty,paired with junction box.
Feature of electric transformer
--Constant voltage dimmable LED driver
--AC input: 90~305 VAC
--Protections: Short circuit / Over current / Over voltage / Over temperature
--Built-in active PFC function
--Cooling by free air convection
--Compliance to worldwide safety regulations for lighting
--IP67 design for indoor or outdoor installations
--Suitable for LED lighting and moving sign applications
--Suitable for dry / damp / wet locations
--5 years warranty Triac power supply
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Model |
SMT-012-250VTH |
SMT-024-250VTH |
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Output |
DC Voltage |
12V |
24V |
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Voltage Tolerance |
±0.5V |
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Voltage Regulation |
±0.5% |
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Voltage Tolerance |
±0.5V |
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Load Regulation |
±2% |
±1% |
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Rated current |
20.83A |
10.41A |
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Rated power |
250W |
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Input |
Voltage Range |
100-277VAC |
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Frequency Range |
47～63HZ |
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Power Factor（Typ.）@ full load |
0.96@120VAC 0.97@277VAC |
0.97@120VAC 0.95@277VAC |
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THD（Typ.）@ full load |
<20% |
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Inrush Current （Typ.） |
15A, 50%, 1.4ms |
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Full Load Efficiency（Typ.） |
>86% |
>87% |
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AC Current（Typ.） |
2.8A@110VAC / 1.13A@110VAC 1.76A |
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Leakage current |
<0.50mA |
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Protection |
Short Circuit |
shut down o/p voltage, re-power on to recover after fault condition is removed |
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Over load |
≤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 |
≤1.4*I out |
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Environment |
Working TEMP. |
-40～+60℃ |
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Working Humidity |
20～90%RH,non-condensing |
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Storage TEM.,Humidity |
-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 |
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Safety&EMC |
Safety standards |
UL8750 |
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Withstand voltage |
I/P-O/P:3.75KVAC |
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Isolation resistance |
I/P-O/P：100MΩ/500VDC/25℃/70%RH |
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EMC EMISSION |
Compliance to EN55015,EN61000-3-2 (≥50%load) |
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EMC IMMUNITY |
EN61000-4-2,3,4,5,6,11（Surge 4KV） |
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Others |
Weight |
1.9Kg |
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Size |
278*108*46mm (L*W*H) |
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packaging |
10PCS/CTN 385*335*200mm 20PCS/CTN |
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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. |
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Label |
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All models for Smarts Electronicshigh PFC> 0.98 , high efficiency> 97% Triac / 0-10V / DALI 305vac transformer. They are:
---- triac dimmable LED drivers: 12VDC & 24VDC 30W, 60W 100W, 150W, 200W, 250W, 300W with junction boxes attached .. 5 years warranty
---- DALI dimmable LED drivers: 12V & 24V 100W , 24V 120W , 12V & 24V 150W, 12V & 24V 180W , 24V 200W 3 years warranty
---- 0-10V dimmable LED drivers: 12V & 24V 100W , 24V 120W , 12V & 24V 150W, 12V & 24V 180W , 24V 200W 3 years warranty
Payment of Smarts Electronics 12v transformer：
--Paypal / Western Union for small order
--T/T for production order
Packing and shipping details about Smarts Electronics’ dc transformer:
After you placing the order, we will deliver the goods as soon as possible if in stock.
The goods will be sent by sir international express or as customers’ requirement.
About Smarts Electronics
we is a global professional manufacturers. High product quality, reasonable prices, excellent customer service and reliable reputation is our purpose.
we maintain high standards of excellence, the pursuit of 100% customer satisfaction!
if you have any questions, please feel free to contact us by mail or communication tool, we will reply your email within 24 hours (except weekends and holidays). If there is no response within 24 hours, please check the spam in your email or try to contact us again.
