Switching power supply

 NHI300-4.5-A

 OUTPUT

DC Voltage

 4.5V

Current Range

 0~60A

Rated Current

 60A

Rated Power

 270W

Ripple & Noise(max.)

 <250mVp-p

Voltage ADJ.Range

 4.05~5.0V

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

 5.2~ 6.3V

 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

 190*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.

3. Tolerance: includes set up tolerance,line regulation and load regulation.

4. Please connect positive pole of input voltage with mark”L” of terminal block,connect negative pole of input voltage with mark”N” of terminal block,using DC voltage for input voltage