IP20 Constant Voltage LED Display Power Supply 4.2v 60a for Led Display Screen

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.)

?<250mVp-p

Voltage ADJ.Range

?3.78~4.62V

Voltage Tolerance

? 2.0%

Line Regulation

? 0.5%

Load Regulation

? 1.0%

Setup,Rise Time

?1000ms,50ms/230VAC

Hold up time

?20ms/230VAC

?INPUT

Voltage Range

?200-240VAC

Frequency Range

?47-63Hz

Efficiency(Typ.)

?83-88%

AC Current

?4A/230VAC

Inrush Current(max.)

?60A/230VAC

Leakage Current

?< 3.5mA /240VAC

?Protection

Over Load

?105 ~ 150% rated output power

?Protection type: Constant current limiting,recovers?? automatically after fault condition is removed

Over Voltage

?4.83~ 5.88V

?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.

?-40 ~ +60℃ (Refer to output load derating curve)

Working Humidity

?20 ~ 90% RH, non-condensing

Storage Temp., Humidity

?-40 ~ +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

?271.9K hrs min. MIL-HDBK-217F(25℃)

Dimension