click image to zoom/view all
This has a processor controlling the voltage regulation. If the voltage changes outside of the "safe" window, 190V low or 270V high, then the HLVD shutsdown the power. The internal processor clock then monitors the voltage and when the voltage returns within the "safe" window it waits 3 minutes before re-activating the power automatically. Thus making sure the connected equipment only ever receives safe power. If the voltage travels outside the "safe" window while the timer is on then the timer re-sets.
Note: Factory delay 180 seconds/3minutes can be adjusted donw to a few seconds if shorter delay required.