Are you looking for 28V power supply units (IP65/IP68) with a particularly high degree of protection?
Here you will find powerful and particularly robust 28V switched-mode power supply units (IP65/IP68) for harsh industrial environments. FEAS offers power supply units of different technologies as cable versions. Thanks to full casting resin encapsulation and reliably sealed cable inputs and outputs and LEDs, all these power supplies meet the requirements of classes IP65 to IP68K.
Made in Germany: All power supply units are developed and manufactured in our factory in Ahrensburg.
28-volt power supply units (IP65/IP68) - unregulated (filtered/smoothed)
The AC mains voltage is transformed by a transformer to the appropriate rectifier input voltage, which is then filtered and smoothed
by means of an electrolytic capacitor. Depending on the AC input voltage and DC consumer, the output voltage may vary slightly
. The design of these 28V power supply units (IP65/IP68) is robust
and limited to the essentials. These 28V power supplies (IP65/IP68) are sufficient for controlling valves, relays, contactors and magnetic switches and for most PLC controls.
28V switching power supplies - SMPS (IP65/IP68)
The 28V switching power supply (IP65/IP68)
converts the mains voltage into a regulated 28VDC output voltage
, but has a higher efficiency
and a smaller size
. After filtering and rectification, the AC input voltage is converted into a high-frequency wave-shaped pulsating voltage by a pulse-width modulated semiconductor
switch and transformed into the required 28V voltage
by means of a transformer on the secondary side. It is then rectified and filtered again. The power supply units of higher power are all equipped with a Power Factor Correction (PFC)