Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

10/10/2013

603-778-2300 www.wallindustries.com Fax 603-778-9797

Page 1 of 3

PSSBU31 Series

Open Frame

30 Watt, Single Output

AC/DC Switching Power Supply

Rev B

FEATURES

● Single Output

● RoHS Compliant

● Class I Insulation

● Output Voltages Available from 5VDC to 48VDC

● Wide Input Voltage Range: 90~264VAC, 47~63Hz

● Input Surge Current, Over Voltage, and Over Load Protection

DESCRIPTION

The PSSBU31 series of AC/DC switching mode power supplies provides 30 Watts of continuous output power in a compact, open frame

constructed design. This series has single output supplies with a universal input range of 90~264VAC. These units are ideally suited for

use in portable equipment as well as many other applications. All models meet CISPR-22 class B emission limits and comply with new CE

requirements. All models are input surge current, output voltage, and over load protected. All units are also 100% burn-in tested.

SPECIFICATIONS: PSSBU31 Series

All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.

We reserve the right to change specifications based on technological advances.

SPECIFICATION

TEST CONDITIONS

Min

Nom

Max

Unit

Operating Voltage Range

90

264

VAC

Input Frequency

47

63

Hz

Input Current (Low Line)

Io = Full Load, Vin = 115VAC

0.8

A

Input Current (High Line)

Io = Full Load, Vin = 230VAC

0.5

A

Inrush Current (Low Line)

Io = Full Load, 25°C, Cool Start, Vin = 115VAC

12

15

A

Inrush Current (High Line)

Io = Full Load, 25°C, Cool Start, Vin = 230VAC

26

35

A

Safety Ground Leakage Current

Io = Full Load, Vin = 240VAC

0.4

0.75

mA

Start-Up Time

Io = Full Load, Vin = 100VAC

2

s

Output Voltage Range

See Table

Load Regulation

Vin = 230VAC

3

5

%

Line Regulation

Io = Full Load

0.5

1

%

Output Power

Vin = 90 to 264VAC

0

30

W

Output Current Range

See Table

Ripple & Noise (peak to peak)

Full Load, Vin = 90VAC

0.5

1

%

Transient Response Time

Io = Full Load to Half Load, Vin = 100VAC

4

ms

Hold-Up Time

Io = Full Load, Vin = 110VAC

12

ms

PROTECTION

Over Voltage Protection

112

132

%

Over Current Protection

110

150

%

GENERAL

Efficiency

Io = Full Load, Vin = 230VAC

78

84

88

%

Dielectric Withstanding Voltage

For Primary to Secondary

Primary to Secondary

4242

VDC

Dielectric Withstanding Voltage

For Primary to Ground

Primary to Ground

2121

VDC

Isolation Resistance

Test Voltage = 500VDC

50

M

No Load Power Consumption

No Load, Vin = 240VAC

0.3

W

ENVIRONMENTAL

Operating Temperature

Derate linearly from 100% Load at 40°C to 50% load at 70°C

0

40

+70

°C

Storage Temperature

-40

+85

°C

Relative Humidity

5

95

%

Temperature Coefficient

All Outputs

-0.04

+0.04

%/°C

MTBF

Operating temperature at 25°C, calculated per MIL-H DBK-217F

100,000 hours

PHYSICAL

Weight

Approximately 3oz (85g)

Dimensions (L x W x H)

4.02 x 1.50 x 0.83 inches

102.0 x 38.1 x 21.0 mm

SAFETY

EMI Requirements for CISPR-22

Vin = 220VAC

B

Class

EMI Requirements for FCC PART-15

Vin = 110VAC

B

Class