Emerson / Artesyn / Astec LPQ252 Power Supply Module

The Emerson/Artesyn/Astec LPQ252 is a 250W enclosed AC-DC power supply module designed for ITE (Information Technology Equipment) applications. It offers four output voltages with adjustable capabilities on the fourth output. The unit features active power factor correction, a built-in EMI filter, and comprehensive protection mechanisms, ensuring reliable power conversion for demanding environments.

### Technical Specifications

**General**
* **Manufacturer:** Emerson / Artesyn / Astec
* **Series:** LPQ250 Series
* **Model Number:** LPQ252 (also referenced as LPQ252-C, LPQ252-CF, LPQ252-CEF)
* **Type:** Enclosed AC-DC Power Supply Module
* **Certifications:** BABT, CB, CE, CISPR 22, CSA, EN55022, EN61000-3-2, FCC Class B, IEC EN6100-3-2, NEMKO, UL, VDE

**Electrical Specifications**
* **Input Voltage Range:**
* 85-264 VAC
* 120-300 VDC
* **Input Frequency:** 47 Hz to 440 Hz
* **Output Power (Max):** 250 W
* **Efficiency:** Typically 75% at full load
* **Power Factor Correction:** Active PFC

**Outputs**
* **Number of Outputs:** 4
* **Output 1:**
* Voltage: 5 VDC
* Current (Continuous): 35 A
* Current (Peak): 40 A
* Regulation: ±2%
* Ripple & Noise: 50 mV
* **Output 2:**
* Voltage: 12 VDC
* Current (Continuous): 10 A
* Current (Peak): 12 A
* Regulation: ±3%
* Ripple & Noise: 120 mV
* **Output 3:**
* Voltage: -12 VDC
* Current (Continuous): 6 A
* Current (Peak): 8 A
* Regulation: ±3%
* Ripple & Noise: 120 mV
* **Output 4:**
* Voltage: Adjustable ±5V to 25V (Factory set at 5V for LPQ252-C)
* Current (Continuous): 6 A
* Current (Peak): 8 A
* Regulation: ±3%
* Ripple & Noise: 240 mV max.
* **Supervisory Outputs:**
* 5 V @ 100 mA (regulated)
* 12 V @ 500 mA
* **Hold-up Time:** 16 ms @ 250 W load, 115 VAC nominal line

**Interfaces and Control**
* **Remote Sense:** On the main output, compensates for 0.5V lead drop
* **Power Fail:** TTL logic signal goes high 50-150 msec after 5V output; goes low at least 4 ms before loss of regulation
* **Remote Inhibit/On/Off:** Requires an external contact (N.O or N.C) to inhibit outputs
* **DC-OK Signal:** TTL logic goes high 50-150 msec after 5V output; goes low when there is loss of regulation
* **Current Sharing:** Single wire current sharing capability

**Protection Features**
* **Overload Protection:** Short circuit protection on all outputs; case overload protected at 110-145% above peak rating
* **Overvoltage Protection:** Specified for 5V output: 5.7-6.7 VDC
* **Thermal Overload Protection:** Included

**Physical Characteristics**
* **Dimensions (L x W x H):**
* 261 mm x 127 mm x 50.8 mm
* 262mm x 127mm x 76.2mm
* 262.0mm x 127.0mm x 50.8mm
* 9.00″ L x 5.00″ W x 2.01″ H (228.6mm x 127.0mm x 51.0mm)
* 9 × 5 × 2 in
* **Weight:** Approximately 1.19 kg, 1.4 kg, 3.1 lb/1.41 kg
* **Mounting Type:** Chassis Mount
* **Package Type:** Enclosed
* **Cooling:**
* Requires 30 CFM forced air cooling if optional fans are not used
* Models with “-CF” suffix: Cover with top fan
* Models with “-CEF” suffix: Cover with dual end-mounted fan cover and AC inlet

**Environmental Specifications**
* **Operating Temperature:**
* 0°C to 50°C
* 0°C to 70°C (with derating)
* **Safety Ground Leakage Current:** <0.5 mA at 50/60 Hz and 264 VAC input * **EMI Filter:** Built-in**Compatibility and Applications** * **Applications:** ITE (Commercial) * **Brand Association:** Emerson, Artesyn, Astec, Advanced Energy * **Legacy/Obsolete Status:** Some sources indicate the LPQ252-CEF is obsolete or no longer manufacturedWhy Choose Aumictech for Emerson / Artesyn / Astec LPQ252? At Aumictech, we specialize in sourcing and supplying high-performance power supply modules. Whether you need reliable power conversion for industrial IT equipment, versatile multi-output solutions, or robust protection features, our team ensures the Emerson / Artesyn / Astec LPQ252 delivers maximum performance and stability for your critical applications.