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