When selecting an AC/DC power supply, various basic specifications must be considered. This checklist helps you determine the most important parameters for your application.
Power and Temperature
Which power is required? At which temperature? (Consider derating!)
Output Voltage
Which output voltage is desired?
Input Voltage
Is the input voltage 1-, 2- or 3-phase?
Power Factor Correction
Is a PFC (=Power Factor Correction) required? Normally in Germany from 75W!
Installation Situation
What is the installation situation? Temperature, space?
Directives and Standards
Are there special directives? (e.g. medical standard EN 60601, explosion protection – ATEX)
Tip: A detailed clarification of these points in advance saves time and avoids incorrect specifications when selecting your power supply.