Embedded Power for
Business-Critical Continuity
LPT50 Series
55 Watts
Total Power:
Input Voltage:
# of Outputs:
47 - 55 Watts
90 - 264 VAC
127 - 300 VDC
Triple
Rev. 4.27.09_37
LPT50 Series
of 3
Special Features
• Universal input
• 2” x 4” footprint
• Less than 1U high
• 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
• 85 kHz switching frequency
• UL Class I approved
• LPX50 enclosure kit available
Electrical Specifications
Input
Input range:
Frequency:
Inrush current:
Efficiency:
EMI/RFI:
Safety ground leakage
current:
90 - 264 VAC (wide range) 127-300 Vdc
47-440 Hz
< 60 A peak @ 230 VAC, cold start @ 25 °C
80% typical at full load
FCC Class B conducted; CISPR 22 Class B conducted; EN55022 Class B
conducted
0.5 mA @ 50/60 Hz; 264 VAC input
Output
55 W for convection (LPT51, 47.4 W)
10/ 20 ms 115/230 VAC input line
Short circuit protection on all outputs.
Case overpower protected @ 110-160% of normal rating
Overvoltage protection: 30-50% above nominal output
Maximum power:
Hold-up time:
Overpower protection:
Environmental Specifications
Operating temperature:
0° to 50 °C ambient. Derate each output as 2.5% per degree from
50° to 70 °C. -20 °C start up
Storage temperature:
-40 °C to +85 °C
Electromagnetic susceptibility: Designed to meet EN61000-4; -2, -3, -4, -5, -6, -8, -11 Level 3
Humidity:
Operating; non-condensing 10% to 95% RH
IEC68-2-6 to the levels of IEC721-3-2
> 550,000 hours at full load and 25 °C ambient conditions
Safety
• UL:
• CSA:
• TUV:
• CB:
• CE:
UL 60950-1
CSA-C22.2 No. 60950-1
EN60950-1
Certificate and report
LVD & EMC
Vibration:
MTBF demonstrated:
Embedded Power for
Business-Critical Continuity
Rev. 4.27.09_37
LPT50 Series
2 of 3
Ordering Information
Model
Number
LPT51
Output
Voltage
+3.3 V
+5 V
+12 V
+5 V
+12 V
-12 V
+5 V
+15 V
-15 V
+5 V
+24 V
+12 V
Minimum Maximum Load with
Load
Convection Cooling
0.8 A
0.1 A
0 A
0.5 A
0.1 A
0 A
0.5 A
0.1 A
0 A
0.5 A
0.1 A
0 A
8 A
3 A
0.5 A
8 A
3 A
0.5 A
8 A
2.4 A
0.5 A
8 A
1.5 A
0.5 A
Peak
Load
1
9 A
4 A
1 A
9 A
4 A
1 A
9 A
3.2 A
0.7 A
9 A
2 A
0.7 A
Regulation
2
±2%
±6%
±5%
±2%
±5%
±5%
±2%
±5%
±5%
±2%
±7%
±5%
Ripple P/P (PARD)
3
50 mV
50 mV
120 mV
50 mV
120 mV
120 mV
50 mV
150 mV
150 mV
50 mV
240 mV
120 mV
LPT52
LPT53
LPT54
1. Peak current lasting < 15 seconds with a maximum 10% duty cycle.
2. At 25 °C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
3. Peak-to-peak with 20 MHz bandwidth and 10 µF (tantalum capacitor) in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.
Pin Assignments
LPT51
SK1-1
SK1-3
SK2-1
SK2-2
SK2-3
SK2-4
SK2-5
SK2-6
Neutral
Line
+3.3 V
+3.3 V
LPT52
Neutral
Line
+5 V
+5 V
Common
Common
-12 V
+12 V
LPT53
Neutral
Line
+5 V
+5 V
Common
Common
-15 V
+15 V
LPT54
Neutral
Line
+5 V
+5 V
Common
Common
+12 V
+24 V
Mating Connectors
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
Emerson Network Power Connector Kit #70-841-006, includes all of the
above
Notes:
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, 25 °C unless otherwise stated.
6. Warranty: 2 year
7. Weight: 0.45 lbs/0.20 kg
AC Input:
+12 V
5 V
Embedded Power for
Business-Critical Continuity
Mechanical Drawing
Americas
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Rev. 4.27.09_37
LPT50 Series
3 of 3
M1
M2
Europe (UK)
6
1
3
GND
1
1.72
[43.8]
2.00
[50.8]
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
Asia (HK)
Mounting hole
Ø4.0(4x)
Max. Screw Head
Diameter .22” (5.6)
3.73
[94.7]
4.00
[101.6]
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
For global contact, visit:
www.PowerConversion.com
techsupport.embeddedpower
@emerson.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
1.30
[32.9]
Emerson Network Power.
The global leader in enabling
business-critical continuity.
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