The **PJA150F-48-R** is a high-quality, AC-DC enclosed switching power supply manufactured by **Cosel**. It is part of the PJA series, designed for industrial applications requiring high reliability and a compact footprint. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the PJA150F-48-R: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Rated Output Voltage** | 48V DC | Adjustable range: 39.6V to 52.8V | | **Rated Output Current** | 3.2A | Total power of 153.6W | | **Input Voltage Range** | 85 - 264V AC | Universal input (Single Phase) | | **Efficiency** | 90% Typical | High efficiency reduces thermal waste | | **Cooling Method** | Convection | Natural air cooling (no fan required) | | **Operating Temp** | -20 to +70 °C | Derating applies depending on load/mounting | --- ### 2. Electronic Component Features The PJA150F-48-R incorporates several specialized electronic features to ensure stability and safety: * **PFC (Power Factor Correction):** It includes an active PFC circuit to minimize harmonic current, complying with IEC61000-3-2 standards. * **Overcurrent Protection (OCP):** Automatically recovers when the overcurrent condition is removed (hiccup mode). * **Overvoltage Protection (OVP):** Shuts down the output if the voltage exceeds the rated threshold (requires AC cycle reset). * **Isolation:** High-grade isolation between Input-Output (3,000VAC) and Input-FG (2,000VAC). --- ### 3. Meaning of the Part Number Suffixes The specific model name breakdown is as follows: * **PJA**: Series name (Enclosed type). * **150**: 150 Watts output power class. * **F**: Universal Input (Full range). * **48**: 48V DC Output. * **-R**: **Option "R"**. This indicates the inclusion of **Remote ON/OFF** functionality. This allows the power supply to be toggled via an external signal without disconnecting the main AC line. --- ### 4. Physical and Connection Details The unit is built with a rugged metal frame and screw terminal blocks for secure electrical connections. ```text Terminal Pin Assignment: 1. AC (L) - Line 2. AC (N) - Neutral 3. FG - Frame Ground 4. -V - Output Negative 5. +V - Output Positive 6. RC+ - Remote ON/OFF Positive (due to -R option) 7. RC- - Remote ON/OFF Negative (due to -R option) ``` ---