SoundGuy wrote:
laknox wrote:
Is there an alternative to the PI systems?
Sure - the TRC Surge Guard has traditionally been bagged here on the forums, mostly because of a one year warranty, but new ones now being sold include a limited lifetime warranty as well. Models like the 34830 and 34850 also have a feature the PI units do not - a trip delay of ~ 8" which helps to avoid nuisance trips caused by incoming source voltage that hovers slightly above and below the set trip voltage. I currently am running a hard wire Progressive EMS-HW30C but if I had reason to buy another I'd most likely replace it with a TRC 34830 and install it inside the camper, just as I did years ago with my first Surge Guard, and early version of this same EMS.
Actually PI EMS the trip delay on low voltage is 6 seconds.
Bad ground is instant. High voltage I don't know but speculate it is instant as I agree it should be.
Message here:
11/4/16
(to me), If the voltage falls below 104 Vac for more than 6 seconds, the EMS will disconnect. A loss of ground will cause an instantaneous disconnect. When an error occurs and then the cause clears, the time delay starts. In your example, if the error occurs every sixty seconds, power would not be restored, because the delay would be resetting to zero each time.
Regards,
Customer Support
919 267-6964
