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DATASHEET
Rev. E
PSM250 SERIES
90~264VAC Input Voltage Range
200 Watts with Free Air Convection
250 Watts with 17.1CFM Forced Air
Medical AC/DC Switching Power Supplies
Type O
Type U
FEATURES
 Single Outputs
 No Minimum Load Requirement
 RoHS Compliant
 Over Load, Over Voltage, and Short Circuit Protection
 Power Factor > 0.90 at 230VAC
 Ultra Low Leakage Current < 300µA at 264VAC
 90~264VAC Input Voltage Range
 UL/cUL 60601-1, TUV EN60601-1, and IEC60601-1:2005
 85% High Efficiency
(3rd edition) Medical Approvals
 250W with 17.1CFM Forced Air
 200W with Convection Cooling
 High Power Density
 Meets CE, EN60601-1-2, FCC Part-18 Class B, EN55011
Class B, and EMC Standards
 Open Frame and U-Chassis Mechanical Options Available
DESCRIPTION
The PSM250 series of medical AC/DC switching power supplies offers 250 Watts of output power with
17.1CFM forced air and 200 Watts with convection cooling. All models have a single output, a 90~264VAC
input voltage range, and a power factor greater than 0.9. These units are also protected against short circuit, over
load, and over voltage conditions. All models have UL/cUL 60601-1, TUV EN60601-1, and IEC60601-1:2005
(3rd edition) safety approvals. This series is RoHS compliant and meets CE, EN60601-1, FCC Part-18 Class B,
and EN55011 Class B EMC standards. Models are available in both open frame (Type O) and U-chassis (Type
U) designs.
04/05/2012
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 1 of 6
PSM250 Series
250 Watts, Single Outputs
Open Frame & U-Chassis Packages
Medical AC/DC Switching Power Supplies
Rev. E
SPECIFICATIONS: PSM250 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
Typ
Max
Unit
INPUT SPECIFICATIONS
Input Voltage Range
90
264
VAC
Input Frequency
47
63
Hz
Input Current (rms)
Inrush Current
Power Factor
At 115VAC
4
At 230VAC
2
At 115VAC, cold start at 25°C
50
At 230VAC, cold start at 25°C
100
At 115VAC and full load
0.95
At 230VAC and full load
0.90
A
A peak
OUTPUT SPECIFICATIONS
Output Voltage
See Table
At 25°C including initial tolerance, line voltage, load
currents, and output voltages adjusted to factory settings
Output Regulation
-5
Output Current
+5
%
See Table
Minimum Load
0
Output Power
%
See Table
At 20MHz limited bandwidth and 0.1µF ceramic and
10µF electrolytic capacitors in parallel on the output
115VAC and full load
Ripple & Noise
Hold-up Time
-1
+1
%
-0.04
+0.04
%/°C
110
160
%
16
Temperature Coefficient
ms
PROTECTION
Over Load Protection
Automatic recovery
Short Circuit Protection
Automatic recovery
Over Voltage Protection
Automatic recovery
GENERAL SPECIFICATIONS
Efficiency (typical)
115VAC and full load
Isolation Voltage
Earth Leakage Current
85
%
Primary to Secondary
5656
VDC
Primary to Frame Ground
2121
VDC
At 264VAC
300
µA
0
60
°C
-40
85
°C
95
%
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Derate linearly 2.5% per °C from 41°C to 60°C
Storage Temperature
Humidity (non-condensing)
MTBF
5
Full load and 25°C
> 100,000 hours
PHYSICAL SPECIFICATIONS
Dimensions (L x W x H)
Weight
Open Frame Type (Suffix “O”)
5 x 3 x 1.28 inches (127 x 76.2 x 32.5 mm)
U-Chassis Type (Suffix “U”)
5 x 3.2 x 1.52 inches (127 x 81 x 38.6 mm)
Open Frame Type (Suffix “O”)
0.88 lbs (400g)
U-Chassis Type (Suffix “U”)
1.11 lbs (500g)
SAFETY & EMC
Safety Standards
EMC Standards
04/05/2012
UL/cUL UL60601-1, TUV EN60601-1, IEC 60601-1:2005 (3rd edition)
EN60601-1-2, FCC Part 18 Class B, EN55011 Class B, CE
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 2 of 6
PSM250 Series
250 Watts, Single Outputs
Open Frame & U-Chassis Packages
Medical AC/DC Switching Power Supplies
Rev. E
MODEL SELECTION TABLE
Model Number (1)
Input Voltage
Output Current
Output Voltage
Output Power
Convection
17.1CFM Airflow
Convection
17.1CFM Airflow
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
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
5A
6.25 A
200W
250W
PSM250B1Y48O
48 VDC
4.17 A
5.21 A
200W
250W
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
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
5A
6.25 A
200W
250W
PSM250B1Y48U
48 VDC
4.17 A
5.21 A
200W
250W
PSM250B1Y28O
90 ~ 264 VAC
PSM250B1Y28U
Package Type
Open Frame
90 ~ 264 VAC
U-Chassis
NOTES
1. There are two types of mechanical options available: Open frame (suffix “O”) and U-chassis (suffix “U”).
DERATING CURVE
120
Output Power (%)
100
80
60
40
20
0
0
04/05/2012
10
20
30
40
50
Ambient Temperature (°C)
60
70
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 3 of 6
PSM250 Series
250 Watts, Single Outputs
Open Frame & U-Chassis Packages
Medical AC/DC Switching Power Supplies
Rev. E
MECHANICAL DRAWINGS
Open Frame Models (Type “O”): 5.00 x 3.00 x 1.28 inches
Unit: inches (mm)
5.00 (127.0)
0.22
(5.5)
1.28 (32.5)
4.57 (116.0)
0.22
(5.5)
2.57 (65.2)
3.00 (76.2)
0.22 (5.5)
0.22 (5.5)
0.087 (2.2)
CN1
4 X Ø3.5 Mounting Holes
MATCHING CONNECTORS
CN1: Input Connector
JST B3P-VH-B pitch: 3.96mm or equivalent, mates with JST VHR-3N or equivalent.
Pin
Signal
1
AC Line
2
AC Neutral
CN2: Output Connector
JST B9P-VH-B pitch: 3.96mm or equivalent, mates with JST VHR-9N or equivalent.
Pin
Signal
1
RTN
2
RTN
3
RTN
4
RTN
5
+Vo
6
+Vo
7
+Vo
8
+Vo
9
+Vo
04/05/2012
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 4 of 6
PSM250 Series
250 Watts, Single Outputs
Open Frame & U-Chassis Packages
Medical AC/DC Switching Power Supplies
Rev. E
U-Chassis Models (Type “U”): 5.00 x 3.20 x 1.52 inches
Unit: inches (mm)
5.00 (127.0)
0.22
(5.5)
4.57 (116.0)
0.22
(5.5)
0.31
(8.0)
1.52 (38.6)
2.56 (65.0)
0.31
(8.0)
3.20 (81.0)
CN2
CN1
4X M3 PEM Nuts on the opposite side of U-bracket for mounting
MATCHING CONNECTORS
CN1: Input Connector
JST B3P-VH-B pitch: 3.96mm or equivalent, mates with JST VHR-3N or equivalent.
Pin
Signal
1
AC Line
2
AC Neutral
CN2: Output Connector
JST B9P-VH-B pitch: 3.96mm or equivalent, mates with JST VHR-9N or equivalent.
Pin
Signal
1
RTN
2
RTN
3
RTN
4
RTN
5
+Vo
6
+Vo
7
+Vo
8
+Vo
9
+Vo
04/05/2012
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 5 of 6
Rev. E
PSM250 Series
250 Watts, Single Outputs
Open Frame & U-Chassis Packages
Medical AC/DC Switching Power Supplies
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working
closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to
provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss
your future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
04/05/2012
(603)778-2300
(888)587-9255
(603)778-9797
sales@wallindustries.com
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Page 6 of 6