Parallax Power Converter, it is for an RV. Never been used Parallax 6730D Distribution Panel Converter Charger The model 6730D electronic converter/charger from Parallax Power Supply is the perfect power solution for small RV classes like tent, pop-up or truck campers. The filtered DC power is free from spikes and surges, ensuring bright lighting and smooth operation of amenities. The panel is pre-wired and preloaded with a 30 Amp main breaker, one 20 Amp circuit breaker and two 15 Amp circuit breakers. Battery polarity protection is provided and the unit has a 5 DC load circuit capability. Gain access to big power in a little package with the 6730D Power Center. Designed for the tent, pop-up, and truck camper the 6730D is the perfect power solution for small RV classes. Serving as your “one stop shop” for your AC/DC distribution with converter, the filtered DC power is free from spikes and surges, ensuring bright lighting and smooth operation of amenities. Panel pre-wired and preloaded with a 30-ampere main breaker, one 20 amp circuit breaker & two 15 amp circuit breakers. The DC output of 30 amps brings convenience and reliability to the user’s RV experiences. Cutout  12 3/4″ wide by 6 1/4″ tall.. at least 6″ deep