PSMHBU250 SERIES
250 Watts
AC/DC Medical & ITE Power Supply
Single Outputs
Rev A
Enclosed Case w. External Fan
(“FA” Type)
Enclosed Case w. Internal Fan
(“FB” Type)
Open Frame (Standard)
Enclosed Case (“E” Type)
Size: 4in x 2in x 1.28in
Size: 4.79in x 2.48in x 1.57in
Size: 4.79in x 2.48in x 1.97in
Size: 4.79in x 2.48in x 2in
OPTIONS
• Form Factor
- Open Frame
FEATURES
• Wide Operating Voltage of 85-264VAC
• Input to Output: 2MOPP
• High Surge Immunity
• RoHS Compliant
• High Efficiency
• 150W Full Load at Free Air Convection, 250W with 8CFM
Forced Air, Peak Power 300W
• Protection Class I or II
• IEC62368-1 Edition 2.0, UL62368-1, CAN/CSA-C22.2
NO.62368-1-14, EN62368-1:2014, IEC60601-1 Edition 3.2,
IEC 60601-1 3.1, ES60601-1:2005(R2012), CAN/CSA-
C22.2 No. 60601-1:14, EN60601-1:2016/A1:2013 Safety
- Enclosed
- Enclosed with Internal Fan
- Enclosed with External Fan
• Protection Class
• Over Voltage, Over Load, Over
Temperature, and Short Circuit Protection
APPLICATIONS
• Medical
• Industrial
• Measurement
• Telecom
DESCRIPTION
The PSMHBU250 series of AC/DC medical and ITE power supplies offers 150 watts full load at free air
convection, 250 watts with 8CFM forced air, and peak power of 300 watts. This series consists of single
output models with a wide operating voltage range of 85~264VAC and high surge immunity. Each model in
this series is RoHS compliant, has over load, over voltage, over temperature, and short circuit protection.
This series has IEC62368-1 Edition 2.0, UL62368-1, CAN/CSA-C22.2 NO.62368-1-14, EN62368-1:2014,
IEC60601-1 Edition 3.2, IEC 60601-1 3.1, ES60601-1:2005(R2012), CAN/CSA-C22.2 No. 60601-1:14, and
EN60601-1:2016/A1:2013 safety approvals.
• IPC
MODEL SELECTION TABLE
Open Frame Models
Output Voltage
Vo1 Fan Output
Output Current
Input Voltage
Model Number
Ripple & Noise
Efficiency
Output Power
250 Watts
Vo1
Max2
Fan
Output
Range
Max1
PSMHBU250-105
PSMHBU250-106
PSMHBU250-107
PSMHBU250-108 85~264VAC
PSMHBU250-109
PSMHBU250-110
PSMHBU250-111
*With 8CFM Forced Air to Max Load
12VDC
15VDC
19VDC
24VDC
30VDC
36VDC
48VDC
12VDC
12VDC
12VDC
12VDC
12VDC
12VDC
12VDC
12.5A 20.83A 0.5A
10A 16.66A 0.5A
7.89A 13.15A 0.5A
6.25A 10.41A 0.5A
108mVp-p
135mVp-p
170mVp-p
210mVp-p
270mVp-p
300mVp-p
300mVp-p
91%
91%
91%
92%
92%
93%
93%
5A
8.32A
4.16A 6.94A
3.12A 5.20A
0.5A
0.5A
0.5A
*Max. 1: Convection Cool Max. 2: Forced Air
*PSMHBU250-105~107 0~10% Load Ripple ≤240mVp-p; PSMHBU250-108~111 0~10% Load Ripple ≤1% Vo1
*Under convection cooling, fan output cannot be used
*Vo1 min. load=5% Max. 2 Load
*Temperature controlled fan output voltage: 7V-12V
MODEL SELECTION TABLE
Enclosed Models
Model Number
Input Voltage Range
85~264VAC
Output Voltage
12VDC
Output Current
Ripple & Noise
108mVp-p
135mVp-p
170mVp-p
210mVp-p
270mVp-p
300mVp-p
300mVp-p
Efficiency
91%
91%
91%
92%
92%
93%
93%
Max. Output Power
120 Watts
PSMHBU250-105E
PSMHBU250-106E
PSMHBU250-107E
PSMHBU250-108E
PSMHBU250-109E
PSMHBU250-110E
PSMHBU250-111E
10A
8A
15VDC
19VDC
24VDC
30VDC
36VDC
48VDC
6.31A
5A
4A
3.33A
2.5A
*PSMHBU250-105E~107E 0~10% Load Ripple ≤240mVp-p; PSMHBU250-108E~111E 0~10% Load Ripple ≤1% Vo1
*For enclosed models, output for fan cannot be used.
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
12/22/2021
Page 1 of 7
website: www.wallindustries.com • e-mail: sales@wallindustries.com
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