The PH-A series of isolated DC-DC converters operate from a wide range 200 to 425Vdc input and are available in multiple power levels from 50 to 600W. Output voltages cover 3.3V to 48V and can be adjusted using the trim terminal by up to -60% to +20%. All models feature remote sense and remote on/off and can be conduction cooled to a cold plate or mounted with an optional heatsink. The 300 and 600W models are certified to EN 62477-1 (OVC III) for use in industrial robots connected to an incoming distribution panel, avoiding the requirement for an isolation transformer. These efficient converters are also well suited for HVDC (High Voltage Direct Current) power transmission systems and renewable energy application.

*Read instruction manual carefully, before using the power supply unit.

 ==NOTES==

 *1. Use an external fuse (fast blow type or normal blow type) for each unit. 

 *2. Put input capacitor. 

    C1 : Electrolytic capacitor More than 450VDC, 22μF 

       1) Use low impedance electrolytic capacitor with excellent temperature characteristics.

       2) Use two capacitors(450V, 22μF) in parallel when ambient temperature is -20°C or lower to reduce ESR.

       3) If the impedance of input line is high, C1 capacitance must be more than above.

 *3. Put FG capacitor. 

    C2 : Ceramic capacitor more than 2.5kVAC, 470pF

 *4. Put output capacitor. 

    C3 : Ceramic capacitor 100VDC, 2.2μF 

 *5. Put output capacitor. 

    C4 : Electrolytic capacitor

      1) Use low impedance electrolytic capacitor with excellent temperature characteristics.

      2) Use more than three recommended capacitor above in parallel when ambient temperature is -20°C or lower to reduce ESR.