The UF40 buffer module is a supplementary device for regulated DC 24V power supplies, which can be used for various purposes:

• Deliver DC-power to bridge failures of the DC voltage supply system.
• Extend the hold-up time after loss of the AC power.
• Deliver extra short-term peak current above the current rating of the power supply.

It utilizes service-free electrolytic capacitors for storing the energy which allows usage even at ambient temperatures up to +70°C