The 8300 Series brings output amperages to 30 amp shore services that have never been seen before. The 8355 is a 30 amp power center with a three stage 55 amp converter charger. Manufactured to operate on 120Vac 15 amp branch circuits leaving plenty of power for running other 120Vac devices. The unit is built with a durable steel enclosure and has an 11 position fuse block with blown fuse indicators. Can be upgraded to tempassure technology By installing the Parallax 4400Tau module to maximize battery charging.