@Tony and Rhonda
Tony:
I am going to be installing a single circuit BlueSea System switch as my solar cutoff switch. Oliver installed a single pole switch in my friends 2021 Oliver, which he bought new. It is a BlueSea System model 6006 switch and is rated from 300 amps continous. (I can only assume that OTT is following code by only interupting the + wire, as they have been doing that for a few years now).
Because your and my access hatches are larger than on the 2021+ trailers, we can not install the switch next to the hatch, as OTT did. Instead, I plan to install my BlueSea switch inside the pantry on the wall against the area where the wiring to the Zamp Solar Charge Controller is located. This location allows the + wire from the solar panels to the Zamp Controller to be moved off the Zamp and moved over to the BlueSea switch. Then only a new short cable is necessary to be installed from the BlueSea switch back to the Zamp Controller to complete the circuit. My research indicates that the Zamp Solar Charge Controller is using 8 AWG cable wiring.
Yes, I will have to cut a circular hole in the pantry wall, but that is easier than trying to epoxy a HDPE backing plate inside that small area in back of the Zamp and the switch is than accessable without reaching into where all the wiring is.
If anyone sees my approach to be a issue, please let me know.