the cutoff switch should be behind the front couch under the window.
there might be a wall switch on the curbside wall to the side of the couch that powers the converter on/off. it looks like a household light switch.
i think the 50 breakers are between the converter and fuse panel or in the fuse panel.
welcome to the forum :-)
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.