250W 5V 12V 24V 48V Switch-mode Power Supply

Output

Dc voltage

12V

24V

28V

36V

48V

Output light load range

12-12.1V

24-24.2V  

28-28.2V

36-36.2V  

48V-48.2V

Output   rated current

21A

10.4A

8.9A

6.9A

5.2A

Output   current range

0-21A

0-10.4A  

0-8.9A

0-6.9   A

0-5.2A

Rated   output power

250W

250W

250W

250W

250W

Ripple&noise   (Ta is the ambient temp.)

O <   Ta 70℃

150mV

200mV

200mV

300mV

400mV

Output   adjustment range

10.2-13.8V

21.6-28.8V

25.2-30.8V

32.4-39.6V

43.2-52.8V

Voltage   stabilization accuracy

± 2%

Source   adjustment rate @-10-50℃

± 0.5%

Load   adjustment rate

± 1%

Temperature   coefficient

±   0.03%/℃

Output   start time

When   230vac input and full load, it is below 2.3s

Output   hold time

≥16mS(230Vac input,   Full load)

Voltage   overshoot @-10-50℃

<5.0%

Input

Input   voltage range

94-132Vac/187-253Vac   through the switch

Rated   input voltage range

100Vac~240Vac  

Frequency   range

47Hz~63Hz

Input   current

<3.4A   (Input 230vac, full load)

Efficiency   @25 ° C

81%

83%

84%

84%

85%

Input   current @25 ° C

≤3A@115Vac；≤1.5A@230Vac Full output load

Starting   impulse current

100A@230Vac   Cold start

Standby   power consumption @25℃

＜0.5W

Protection

Output

Over   power

110%-180% OFF

Test   method: Increase the output current until protection. When protection, it can   not cause fire, smoke, electric shock and other dangerous phenomena. It can   recover automatically after eliminating overpower.

Over   voltage

13.8-16.2V  

28.8-33.6V  

32.2-36.4

41.4-46.8V

55.2-64.8V

Test   method: Pin 1-3 of short circuit U2; Protection mode: constant voltage. It   can not cause fire, smoke, electric shock and other dangerous phenomenon. It   can return to normal after eliminating over voltage. Note: Do not use the   external voltage to test.

Over   current

120%-180%

Test   method: The overcurrent point is the current value of the output current   increasing until the output voltage falls out of the stable voltage accuracy   range. When protection, it can not cause fire, smoke, electric shock and   other dangerous phenomena. After eliminating overcurrent, it can   automatically resume to normal.

Short   circuit

The   copper wire with sufficient cross-sectional area and length of 15cm± 5cm is   used to short-circuit directly at the output port of the power supply, which   can be short-circuit for long time. After eliminating short-circuit, it can   be automatically restored

Working Enviro-ment

Operating   temperature and humidity

0℃~50℃; 20%~90%RH No condensing

Storage   temperature and humidity

-20℃~85℃; 10%~95%RH No condensing

Vibration

10 ~   500Hz, 2G 10min./1cycle, period for 60min. each along X,Y, Z axes

Impact

20G/11mS   pulse ,3 times at each X,Y,Z axes

Altitude

5000m   (Above 2000m, the ambient temperature drops 0.5 ° C for every 100m increase   in height)

Three   prevention requirements

Moisture-proof,   mildew proof, salt spray proof

Safety standard @25℃

Safety   standard

Refer   to GB4943, IEC62368

Insulation   strength

Input-output:   1.5KVac/10mA: Input-Housing: 1.5KVac/10mA: Output-Housing: 0.5KVdc/10mA. The   test time is 1min

Ground   test

Test   conditions: 40A/2 minutes; Ground impedance: <0.1 ohms.

Leakage   current

Input   to ground 3.5mA; Input to output 0.25mA

Insulation   negative resistance

Input-output:   100M ohms; Input -- housing: 100M ohms; Output -- Housing: 100M ohms

Others

Installation   method

refers   to the instructions.

Size

199*110*50mm

Connecting   terminal

95 terminal   block/ 9Pin

Reli-ability   require-ment                                                                                                           

Design   MTBE

100,000Hrs   AT 25℃, MIL-217 Method 2 Components Stress Method

1

AC-L

9.5

22-12AWG

11Kgf/CM(MAX)

2

AC-N

3

GR

4

V-

9.5

22-12AWG

11KgfCM(MAX)

5

V+