LPQ252-CEF Emerson Network Power, LPQ252-CEF Datasheet - Page 2

• Manufacturer Part Number: LPQ252-CEF
• Description: PWR SUPPLY 250W QUAD W/CE FAN
• Manufacturer: Emerson Network Power
• Series: LPQ250r

Specifications of LPQ252-CEF

• 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: 10.32" L x 5" W x 2" H (262mm x 127mm x 50.8mm)
• 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%
• Power Supply Output Type: Fixed & Variable
• No. Of Outputs: 4
• Output Voltage: 5V
• Output Current: 3A
• Power Rating: 250W
• Input Voltage: 85V AC To 264V AC / 120V DC To 300V DC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 454-1216; LPQ252-CEF

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. 2.16.09_157
LPQ250 Series
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