You will find people that will tell you that the TRC is adequate protection but my personal opinion is that it is NOT.
I believe that the time it takes to sever power when there is a problem with the TRC is far greater than with the PI EMS HW50-C unit.
Also, if something were to go wrong inside the TRC unit you have to ship the entire unit back to them whereas generally all that is needed with the HW-50C unit is to remove an internal board.
Now here's the best part, the HW-50C has a lifetime warranty regardless of the owner. Let's see TRC match that one!
If it were me I would purchased the HW-50C unit and remove the TRC unit to sell on eBay or in the iRV2.com classifieds.
I started out with a portable TRC 50 amp unit and within one year after recognizing how superior the HW-50C unit was I sold the TRC Portable on eBay and installed the HW-50C. I've been a very happy camper since then.
Dr4Film ----- Richard
2002 Monaco Windsor PBT 40Ft. (R HOME) - 30Ft. 2006 Pace Trailer (R JUNK). Trailer Has 06 VUE (R TOWD) 04 Victory Alen Ness Edition (R RYDE). Full-Timer for 14 Yr's BUT now a Part-Timer. Cummins ISC-350 With Banks Power Pack and Upgraded PRXB PacBrake.
Winter Home in Flagler Beach FL - Now Staying in Dansville NY for the Summer.