AVA Failsafe Open

The S20 Smart AVA failsafe electric actuator stores energy in an internal capacitor when external power is supplied. Under normal operation the AVA actuator operates as an on-off actuator. Should external power be lost, the AVA electric actuator draws power from the internal capacitor to send the actuator to the pre-set failsafe position which in this version is open, if not already in that position when external power was lost.

The internal capacitor will recharge as soon as external power is restored. The advantage of a capacitor over the more commonly used battery back-up is that it is very quick to ‘load’ and ‘charges’ in a fraction of the time it takes to recharge a battery, does not degrade over time like a battery can, and is more competitively priced than a battery back-up solution.

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