accsys wrote:
I plug in and let my PI EMS HW50C do all the checking before it allows power into the coach. It also will kick the coach offline if the power goes bad for some reason after connecting. Yes, it is expensive but it does the job and is a one time expense to protect everything electrical in your unit. Progressive Industries has some of the best support of any company in the USA. Oh, did I say it is guaranteed for life.
X2. My EMSHW50C once detected an open neutral that developed at the 'ol S&B so I have to say it protects for me both home and away.