This document provides technical specifications and features of ASTEC LPQ350 series power supplies, including input range, frequency, efficiency, EMI filter, power factor, output range, supervisory output, overload protection, overvoltage protection, logic control, remote on/off, DC-OK, etc.
This manual describes the Astec LPQ350 series 350‑W power supply, its operating principles, safety certifications, and environmental ratings. It includes detailed specifications, pin assignments, and optional accessories such as fan covers.
Key features include active power factor correction, IEC EN61000‑3‑2 compliance, remote sense on multiple outputs, and built‑in EMI filtering. The document also lists environmental limits, MTBF, and wiring diagrams for proper installation and troubleshooting.
| Power Output | 350 Watts |
|---|---|
| Input Voltage | 85‑264 VAC |
| Number of Outputs | Quad (4) |
| Switching Frequency | 135 kHz |
| Operating Temperature | 0 °C to 50 °C ambient |
| Storage Temperature | -40 °C to 85 °C |
| MTBF | >550,000 hours at full load, 25 °C |
| Power Factor | 0.99 typical |
| Safety Certifications | VDE, UL, CSA, NEMKO, CE |
The LPQ350 accepts an input voltage of 85‑264 VAC (or 120‑300 VDC).
It provides four (quad) outputs.
The MTBF is demonstrated to be greater than 550,000 hours at full load and 25 °C.
It is certified to VDE, UL, CSA, NEMKO, and CE standards.