Embedded Power for
Business-Critical Continuity
LPS250 Series
250 Watts
Total Power:
250 Watts
Input Voltage:
85-264 Vac
120 - 300 Vdc
# of Outputs:
Single
Rev. 2.16.09_158
LPS250 Series
1 of 3
Special Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Active power factor correction
IEC EN6100-3-2 compliance
Remote sense & remote inhibit
Power fail
Single wire current sharing
Built-in EMI filter
2:1 Wide range output voltage
adjust
2 Supervisory outputs 5 V and 12 V
Overvoltage protection
Overload protection
Thermal overload protection
DC power good
120 kHz switching frequency
Cover -C
Optional top with fan cover -CF
Optional end fan cover -CEF
Electrical Specifications
Input
Input range:
Frequency:
Inrush current:
Efficiency:
EMI filter:
85-264 Vac; 120 - 300 Vdc
47-440 Hz
20 A max, cold start @ 25 °C
75%
typical at full load
FCC Class B conducted and radiated
CISPR 22 Class B conducted and radiated
EN55022 Class B conducted and radiated
VDE 0878 PT3 Class B conducted and radiated
< 0.5 mA @ 50/60 Hz, 264 VAC input
Safety ground
leakage current:
Output
Maximum power:
Supervisory output:
Adjustment range:
Hold-up time:
Overload protection:
Overvoltage protec-
tion:
With cover: 250 W with 30 CFM forced air.
(-C) (-CF) (CEF)
5 V @ 100 mA regulated; 12 V @ 500 mA
2:1 wide ratio
20 ms @ 250 W load, 115 VAC nominal line
Short circuit protection on all outputs. Case overload protected @
10-145% above peak rating
5 V output: 5.7 to 6.7 VDC.
Other models 10% to 25% above nominal output
Safety
• VDE
•
•
•
•
•
0805/EN60950 (IEC950)
11774-3336-1262
UL
UL1950 EI32002
CSA
CSA 22.2-234 Level 5
LR53982C
NEMKO EN 60950/EMKO-TUE
P95102999 (74-sec) 203
CB
Certificate and report
2186
CE
Mark (LVD)
Embedded Power for
Business-Critical Continuity
Rev. 2.16.09_158
LPS250 Series
2 of 3
Logic Control
Power failure:
Remote on/off:
DC - OK:
Remote sense:
TTL Logic signal goes high 50-150 msec after 5 V output. It goes low at least 4 ms before loss of
regulation
Requires an external contact (N.O or N.C) to inhibit outputs
TTL logic goes high 50-150 msec after the output. It goes low when there is loss of
regulation.
Compensates for 0.5 V lead drop minimum, will operate without remote sense connected. Reverse
connection protected
Environmental Specifications
Operating temperature:
Storage temperature:
0° to 50 °C ambient;
derate each output at 2.5% per degree from 50° to 70 °C
-40 °C to +85 °C
Temperature coefficient: ± 0.4% per °C
Electromagnetic
susceptibility:
Designed to meet IEC 801, -2, -3, -4, -5, -6, Level 3
Humidity:
Operating; non-condensing 5% to 95%
Vibration:
MTBF demonstrated:
Three orthogonal axes, sweep at 1 oct/min, 5 min. dwell at four major resonances 0.7 G
peak 5 Hz to 500 Hz, operational
> 550,000 hours at full load and 25 °C ambient conditions
Ordering Information
Model Number
LPS252-C
LPS253-C
LPS254-C
LPS255-C
Output Voltage Minimum Load
5 V (3 - 6 V)
12 V (6 - 12) V
15 (12 - 24 V)
24 V (24 -48 V)
1.50 A
0.63 A
0.50 A
0.32 A
Maximum Load with
Peak Load 1 Regulation 2 Ripple P/P (PARD)3
30CFM Forced Air
50 A
60 A
±2%
50 mV
21 A
25 A
±2%
120 mV
16.7 A
20 A
±2%
150 mV
10.4 A
12.5 A
±2%
240 mV
1. Peak current lasting < 30 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 in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.
4. If optional CF or CEF fans are not used, 30CFM forced air cooling needs to be provided and is required through the length of the power supply.
Not convection rated.
5. Output voltage adjustment requires a minimum load.
6. Remote inhibit resets OVP latch
Note: -CF suffix added to the model number indicates cover with top fan. -CEF suffix added to the model number indicates cover with dual end
mounted fan cover and AC inlet.
Embedded Power for
Business-Critical Continuity
Mechanical Drawing
#6-32
M3
6-32 (2 places)
Main Output
Terminal
Block TB1
10.0
+ve -ve
M3 (4 places)
SK3
12345678
SK5
SK4
FAN
SK7
FAN
#6-32 (4 places)
.24 (6.1)
10.0
Americas
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Rev. 2.16.09_158
LPS250 Series
3 of 3
3.68
(93.6)
5.46
(138.6)
6.64
(168.6)
8.52
(216.4)
9.0
(228.6)
10.32
(262.0)
2.17
(55)
Europe (UK)
O/P ADJ.
Optional
(-CF)
3.15
Cover
(80)
with Fan
M3
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)
10.0
6-32 (3 places)
#6-32
5.0 (127.0)
3 2 1
SK1
Optional
(-CEF)
Cover
with fans
2.0
(50.8)
3.0
(76.2)
1.30
(33.0)
AC Inlet
1.18 (30.0)
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.
.55
(14)
.79
(20)
3.42 (87.0)
Emerson Network Power.
The global leader in enabling
business-critical continuity.
AC Power
Connectivity
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Embedded Computing
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Racks & Integrated Cabinets
Services
Surge Protection
EmersonNetworkPower.com
Emerson Network Power and the Emerson
Network Power logo are trademarks and
service marks of Emerson Electric Co.
©2008 Emerson Electric Co.
Pin Assignments
Connector
SK1
PIN 1
PIN 2
PIN 3
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 1
Pin 2
PIN 1
PIN 2
PIN 1
PIN 2
Neutral
Line
Ground
+ Remote sense
- Remote sense
Remote inhibit (N.O.)
Remote inhibit (N.C.)
Common
Current sharing
Power fail
DC Power Good
+ Fan’s power source (12 V @ 500 mA)
- Fan’s power source (12 V @ 500 mA)
+ Supervisory output supply (5 V @ 100 mA)
- Supervisory output supply (5 V @ 100 mA)
+ Fan’s power source (12 V @ 500 mA)
- Fan’s power source (12 V @ 500 mA)
Mating Connectors
SK3
SK4
SK5
SK7
Molex 22-01-1084
PINS:08-70-0057
Molex 22-01-3027
PINS: 08-50-0114
Molex 22-01-3027
PINS: 08-50-0114
Molex 22-01-3027
PINS: 08-50-0114
SK3
Emerson Network Power Connector Kit #70-841-005, 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. Specifications are at factory settings.
4. To enable normally closed remote inhibit, cut jumper J1.
5. Mounting maximum insertion depth is 0.12”.
6. Warranty: 2 year
7. Weight: 2.6 lb / 1.19 kg
SK4
SK5
SK7
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