Surge protectors

SoundGuy wrote:

Lspangler wrote:
Everything in my trailer works on a 30 amp pedastel.

otrfun wrote:
You cannot hardwire a 30 amp surge protector or EMS in a TT with 50 amp service.

Well that's not technically correct. When one uses a 30 amp male > 50 amp female dogbone to plug a rig wired with 50 amp service into a campsite 30 amp source that dogbone applies the 30 amp's single hot line to both hot lines of the 50 amp service. This being the case there's no reason one couldn't also hard wire a 30 amp EMS into a rig with 50 amp service in the same manner. That said, if the OP's rig truly is wired with 50 amp service then I'd agree - ante up for a 50 amp EMS, whether portable or hard wire, and properly protect both phases of the trailer's 50 amp service. Unfortunately the OP hasn't clearly explained exactly how he manages to use a 30 amp main service cable with his 50 amp rig - pics would be helpful so we know precisely where the 50 amp > 30 amp conversion is occurring.

SoundGuy, your suggestion, as-is, is a safety and fire hazard.

Tell me what happens when the OP, or a subsequent owner, decides they want to install a 2nd a/c and run all their appliances at the same time, and connect one end of a 50 amp cord into this TT, and the other into a 50 amp pedestal---forgetting, or not knowing, about the 30 amp surge protector or EMS lurking inside their TT?

If the OP were to follow your suggestion, he MUST also remove the 50 amp connector on the outside of his TT and install a 30 amp connector as a failsafe device. Without this critical step, your suggestion potentially places the OP, and any subsequent owner, in potential peril.