Rev. E

PSM250 Series

250 Watts, Single Outputs

Open Frame & U-Chassis Packages

Medical AC/DC Switching Power Supplies

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

04/05/2012

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

Page 3 of 6

MODEL SELECTION TABLE

Output Current

Output Power

Model Number

(1)

Input Voltage

Output Voltage

Convection

17.1CFM Airflow

Convection

17.1CFM Airflow

Package Type

PSM250B1Y12O

12 VDC

16.67 A

20.84 A

200W

250W

PSM250B1Y19O

19 VDC

10.53 A

13.16 A

200W

250W

PSM250B1Y24O

24 VDC

8.34 A

10.42 A

200W

250W

PSM250B1Y28O

28 VDC

7.14 A

8.93 A

200W

250W

PSM250B1Y30O

30 VDC

6.67 A

8.34 A

200W

250W

PSM250B1Y36O

36 VDC

5.56 A

6.95 A

200W

250W

PSM250B1Y40O

40 VDC

5 A

6.25 A

200W

250W

PSM250B1Y48O

90 ~ 264 VAC

48 VDC

4.17 A

5.21 A

200W

250W

Open Frame

PSM250B1Y12U

12 VDC

16.67 A

20.84 A

200W

250W

PSM250B1Y19U

19 VDC

10.53 A

13.16 A

200W

250W

PSM250B1Y24U

24 VDC

8.34 A

10.42 A

200W

250W

PSM250B1Y28U

28 VDC

7.14 A

8.93 A

200W

250W

PSM250B1Y30U

30 VDC

6.67 A

8.34 A

200W

250W

PSM250B1Y36U

36 VDC

5.56 A

6.95 A

200W

250W

PSM250B1Y40U

40 VDC

5 A

6.25 A

200W

250W

PSM250B1Y48U

90 ~ 264 VAC

48 VDC

4.17 A

5.21 A

200W

250W

U-Chassis

NOTES

1. There are two types of mechanical options available: Open frame (suffix “O”) and U-chassis (suffix “U”).

DERATING CURVE

Ambient Temperature (°C)

0

10

20

30

40

50

60

70

120

100

80

60

40

20

0