Where Is The Fuse Box Located On My Travel Trailer? Where is the fuse box on a 1993 Shasta trailer located? ANSWER: Greetings thanks for submitting your question on our Ask An RV Question Page. The fuses and electrical breakers for your trailer will be located in your trailer's electrical compartment. I cannot tell you the exact location of your 12V RV Fuse Box - Vintage Trailer Supply This is the highest quality stand-alone RV fuse box we've ever seen. It is a surface-mount box that allows for wiring up to 9 independently fused DC circuits. It's ideal for replacing a converter that contains an internal fuse panel (like older Univolts) with a converter/charger that does not (like modern Inteli-Power Converters).