Rev. 05.03.06
LPT50-M Series
1 of 3
Embedded Power for
Business-Critical Continuity
LPT50-M Series
50 Watts
Special Features
Medical Safety Approvals
Universal input
2" x 4" footprint
Overpower and short circuit
protection
High efficiency
High MTBF
Built in EMI filter
(CISPR 22 Class B)
LED power good indicator
Input power <74 watts
Complies with EN61000 -3-2
UL Class I approved
Total Power:
47 - 55 Watts
Input Voltage:
90-264 VAC
127-300 VDC
# of Outputs:
Triple
Electrical Specifications
Safety
Input
Input range
90-264 VAC (wide range) 127-300 VDC
Frequency
47-440 Hz
Inrush current
<60 A peak @ 230 VAC, cold start @ 25C
Efficiency
80% typical at full load
EMI RFI
FCC Class B conducted; CISPR 22 Class B conducted: EN55022
Class B conducted, EN60601-1-2
Safety ground
leakage current
275uA @ 50/60 Hz, 264 VAC input
Output
Maximum power
55 W for convection (LPT51, 47.4W)
Hold-up time
10/20 ms 115/230 VAC input line
Overpower protection Short circuit protection on all outputs
Case overpower protected @ 110 -160% of normal rating
Overvoltage protection 30-50% above nominal output
Operating temperature: 0 to 50C ambient. Derate each output 2.5% per degree
from 50 to 70C. -20C start up
Storage temperature:
-40C to +85C
Electromagnetic
susceptibility:
Designed to meet EN61000-4; -2, -3, -4, -5, -6, -8, -11 Level 3
Humidity:
Operating; non-condensing 10% to 95% RH
Vibration:
IEC68-2-6 to the levels of IEC721-3-2
MTBF demonstrated:
>550,000 hours at full load and 25C ambient conditions
Environmental Specifications
UL
UL 60601-1
CSA
CSA-C22.2 No. 601.1-M90
VDE
EN60601-1
CE
LVD
Rev. 05.03.06
LPT50-M Series
2 of 3
Embedded Power for
Business-Critical Continuity
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PT
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1--M
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LP
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2--M
M
L
LP
PT
T5
53
3--M
M
L
LP
PT
T5
54
4--M
M
SK1-1
Line
Line
Line
Line
SK1-3
Neutral
Neutral
Neutral
Neutral
SK2-1
+3.3 V
+5 V
+5V
+5V
SK2- 2
+2.3 V
+5 V
+5V
+5V
SK2- 3
Common
Common Common
Common
SK2-4
Common
Common Common
Common
SK2-5
12V
-12V
-15V
+12V
SK2-6
5V
+12V
+15V
+24
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AC Input:
Molex 09-50-8031 (USA)
09-91-0300 (UK)
PINS: 08-52-0113
DC Outputs: Molex 09-50-8061 (USA)
09-91-0600 (UK)
PINS: 08-52-0113
Astec Connector Kit #70-841-006, includes all of the above
1. Specifications subject to change without notice.
2. All dimensions in inches (mm), tolerance is 0.02" (0.5mm)
3. Mounting holes M1 and M2 should be grounded for EMI purposes.
4. Mounting hole M1 is safety ground connection.
5. Specifications are for convection rating at factory settings at 115 VAC
input, 25C unless otherwise stated.
6. Warranty: 1 year
7. Weight: 0.45lbs/0.20kg
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3
LPT51-M
+3.3V
+5V
+12V
0.8A
0.1A
0A
8A
3A
0.5A
9A
4A
1A
2%
6%
5%
50 mV
50mV
120mV
LPT52-M
+5V
+12V
-12V
0.5A
0.1A
0A
8A
3A
0.5A
9A
4A
1.0A
2%
5%
5%
50 mV
120mV
120mV
LPT53-M
+5V
+15V
-15V
0.5A
0.1A
0A
8A
2.4A
0.5A
9A
3.2A
0.7A
2%
5%
5%
50 mV
150mV
150mV
LPT54-M
+5V
+24V
+12V
0.5A
0.1A
0A
8A
1.5A
0.5A
9A
2A
0.7A
2%
7%
5%
50 mV
240mV
120mV
1. Peak current lasting <15 seconds with a maximum 10% duty cycle.
2. At 25C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
3. Peak-to-peak with 20 MHz bandwidth and 10 F (tantalum capacitor) in parallel with a 0.1 F capacitor at
rated line voltage and load ranges.
Rev. 05.03.06
LPT50-M Series
3 of 3
Emerson Network Power and the Emerson
Network Power logo are trademarks and
service marks of Emerson Electric Co.
2006 Emerson Electric Co.
Embedded Power for
Business-Critical Continuity
Emerson Network Power.
The global leader in enabling
business-critical continuity.
EmersonNetworkPower. com
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USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Technical Support: +1 888 41 ASTEC
or +1 407 241 2752
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West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
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Telephone: +852 2437 9662
Facsimile: +852 2402 4426
For global contact, visit:
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technicalsupport@astec.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Astec
Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
Printed in US A
2.00
50,8
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4.00
101,6
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0.17
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1
3
1
6
M1
M2
GND
g hole
0(4x)
Mechanical Drawing
Mounting hole
4.0 (4x)
PDF 
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