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WO20A Series AC-DC Open Frame Power Supply

WO series Power Supply is a small volume open frame switching power supply designed and produced by W&H-GAMAY. The power from 10W to 100W. It has the advantage of ultra-wide input voltage range, low power consumption, high efficiency, high reliability, high safety isolation, and excellent EMC performance.

Product introduction

Product Introduction
WO series Power Supply is a small volume open frame switching power supply designed and produced by W&H-GAMAY. The power from 10W to 100W. It has the advantage of ultra-wide input voltage range, low power consumption, high efficiency, high reliability, high safety isolation, and excellent EMC performance. It’s widely used in AC charging station, three-phase four-wire power meter, electricity field and civil electronic products.

Main Features
    1. Ultra-wide Input Voltage Range: 85~700VAC, 50/60Hz;
    2. Single, Dual and Triple Output Models ;
    3. Open PCB installation;
    4. Stable voltage output, low ripple and noise;
    5. 2500vac isolation and withstand voltage;
    6. High efficiency and reliability;
    7. Long life and low impedance electrolytic capacitor;
    8. Industrial temperature range: - 40 ℃ ~ 85 ℃.

Model Designation


Product Parameter

Model

Item

WO20A-220S03T

WO20A-220S05T

WO20A -220S09T

WO20A -220S12T

WO20A -220S15T

WO20A -220S18T

WO20A -220S24T

WO20A -220S36T

WO20A -220S48T

Input

Voltage RangeVAC

85-700

FrequencyHz

4763

Current (MAX)Arms

1.4

Inrush Current(MAX)A

40 (under Cool Start)

Power FactorTyp

0.91

Output

PowerW

3.3

5

9

12

15

18

24

36

48

voltageV

6.00

4.00

2.20

1.67

1.33

1.11

0.83

0.56

0.42

Current A

70%

70%

71%

72%

721%

75%

75%

77%

77%

EfficiencyTyp

±3%

±3%

±3%

±3%

±3%

±3%

±3%

±3%

±3%

Voltage Tolerance

120

120

150

150

150

150

150

150

150

 Voltage Ripple & noisemVp-p

±3%

±3%

±3%

±3%

±3%

±3%

±3%

±3%

±3%

Load regulation

100

Protection

over load

Over rated power 105-150%

Hiccup mode protection, automatically resume work if overload comes to rated load.

over/under voltage

3.53.8

5.35.8

9.510.4

12.613.8

15.817.3

18.920.7

25.227.6

37.841.4

50.455.2

Turn-off output, restart to restore normal

over heat

Turn-off output, after temperature recoveryrestart to restore normal

Working Environment

Working Temp.(℃)

-2085

Storage Temperature(℃)

-4085

Operating Humidity

1090%RH, No condensation

Altitudem

3000

Others

Test Voltage

Input-output withstand 3KVAC, test time: 60s, Leakage current less than 5mA

Insulation Resistance

Input-output, insulation voltage 500VDC, Insulation resistance 100MΩ(25℃、Relative Humidity 95%

Overall Dimension

60x35x30mm

Weight

0.15Kg

Remarks

 

1. Ripple and noise measurement: Use twisted pair wire, connect 0.1uF and 47uF capacitors at the terminal, and measure under the condition of 20MHz oscilloscope bandwidth;

2. Voltage Accuracy: including setting error and load regulation; 

3. Standard configuration of structural size of plugs and wiring, its also can be customized.

4. Fuse: For safety reasons, the module input must be connected to the fuse. The recommended specification for WA5P is 1A/250V, WA10P-WA15P is 2A/250V, and WA20P-WA40P is 3.15A/250V.


Overall Dimensions, PCB Mounting and Pin Definition