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Help CenterProfessional 252W LED Switching Slim Power Supply With High Reliability
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Certification:ISO9001 / CE / ROHS / FCC
Professional 252W LED Switching Slim Power Supply with High Reliability
Features:
* AC input range selectable by switch
* Protections:Short circuit / Overload / Over voltage / Over temperature
* Cooling by free air convection
* Withstand 300vac surge input for 5 second
* Built-in constant current limiting circuit
* 100% full load burn-in test
* Fixed switching frequency at 90KHz
* Low cost,high reliability
* 2 years warranty
Specifications:
|
Switching power supply |
NHI300-4.2-A |
|
|
OUTPUT |
DC Voltage |
4.2V |
|
Current Range |
0~60A |
|
|
Rated Current |
60A |
|
|
Rated Power |
252W |
|
|
Ripple & Noise(max.) |
<200mVp-p |
|
|
Voltage ADJ.Range |
4.05~5.0V |
|
|
Voltage Tolerance |
3.0% |
|
|
Line Regulation |
0.5% |
|
|
Load Regulation |
2.0% |
|
|
Setup,Rise Time |
1000ms,50ms/230VAC |
|
|
Hold up time |
20ms/230VA |
|
|
INPUT |
Voltage Range |
200-240VAC |
|
Frequency Range |
47-63Hz |
|
|
Efficiency(Typ.) |
81-85% |
|
|
AC Current |
4A/230VAC |
|
|
Inrush Current(max.) |
60A/230VAC |
|
|
Leakage Current |
< 3.5mA /240VAC |
|
|
Protection |
Over Load |
105 ~ 135% rated output power |
|
Protection type: Constant current limiting,recovers automatically after fault condition is removed |
||
|
Over Voltage |
5.75 ~ 7.5V |
|
|
Protection type: Shut down O/P voltage,re-power on to recover |
||
|
Over Temperature |
90℃ 5℃ |
|
|
Protection type: Shut down O/P voltage,recovers automatically after temperature goes down |
||
|
Function |
Fan on/off control(Typ.) |
RTH2≧50℃ Fan on,≦45℃ Fan off |
|
Environment |
Working Temp. |
-20 ~ +60℃ |
|
Working Humidity |
20 ~ 90% RH, non-condensing |
|
|
Storage Temp., Humidity |
-20 ~ +85℃, 10 ~ 95% RH |
|
|
Temp.Coefficient |
0.03%/℃ (0 ~ 50℃) |
|
|
Vibration |
10 ~ 500Hz, 5G 10min./1 cycle,60min. Each along X, Y, Z axes |
|
|
Safety |
Safety standards |
UL60950-1 approved |
|
Withstand Voltage |
I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC |
|
|
Isolation Resistance |
I/P-O/P,I/P-FG,O/P-FG:100M Ohms/500VDC / 25℃ / 70% RH |
|
|
Others |
MTBF |
234.3K hrs min. MIL-HDBK-217F(25℃) |
|
Dimension |
196*110*30mm (L*W*H) |
|
|
Packing |
1.0kg; 20pcs/20Kgs |
|
|
Note |
1. All parameters NOT specially mentioned are measured at 230VAC 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 & 47 uf parallel capacitor. |
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