LPQ252-CF Emerson Network Power, LPQ252-CF Datasheet - Page 2
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LPQ252-CF
Manufacturer Part Number
LPQ252-CF
Description
PWR SUPPLY QD OUTPT 250W CVR&FAN
Manufacturer
Emerson Network Power
Series
LPQ250r
Specifications of LPQ252-CF
Voltage - Output
5V, ±12V, 25V
Number Of Outputs
4
Power (watts)
250W
Applications
Commercial
Power Supply Type
Switching (Closed Frame)
Voltage - Input
85 ~ 264VAC
Mounting Type
Chassis Mount
1st Output
5 VDC @ 35A
2nd Output
12 VDC @ 10A
3rd Output
-12 VDC @ 6A
4th Output
25 VDC @ 6A
Size / Dimension
9" L x 5" W x 3" H (228.6mm x 127mm x 76.2mm)
Power (watts) - Rated
250W
Operating Temperature
0°C ~ 50°C
Efficiency
75%
Approvals
CB, CE, CSA, NEMKO, UL, VDE
Line Regulation
±2%, ±3%
Load Regulation
±2%, ±3%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
454-1082
Environmental Specifications
Operating temperature:
Storage temperature:
Temperature coefficient: ± 0.4% per °C
Electromagnetic
susceptibility:
Humidity:
Vibration:
MTBF demonstrated:
Ordering Information
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. 4th output 5 - 25 V factory set at 5 V.
5. Minimum Load is required.
6. 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
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.
Logic Control
Power fail:
Remote on/off:
DC-OK:
Remote sense:
convection rated.
Model Number
LPQ252-C
LPQ253-C
Output Voltage
± 5 - 25 V
± 5 - 25 V
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
0° to 50 °C ambient;
derate each output at 2.5% per degree from 50° to 70 °C
-40 °C to +85 °C
Designed to meet IEC 801, -2, -3, -4, -5, -6, Level 3
Operating; non-condensing 5% to 95%
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
+12 V
+15 V
-12 V
-15 V
+5 V
+5 V
Minimum Load
3 A
0 A
0 A
0 A
3 A
0 A
0 A
0 A
Maximum Load with
30CFM Forced Air
35 A
10 A
35 A
10 A
6 A
6 A
6 A
6 A
Peak Load 1
40 A
12 A
40 A
12 A
8 A
8 A
8 A
8 A
Regulation 2
±2%
±3%
±3%
±3%
±2%
±3%
±3%
±3%
Embedded Power for
Business-Critical Continuity
Ripple P/P (PARD) 3
240 mV max.
240 mV max.
120 mV
120 mV
150 mV
150 mV
50 mV
50 mV
Rev. 04.29.11_157
LPQ250 Series
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