The 8300 Series brings never-before-seen output amperages to 30 amp shore services. Active power factor correction allows for better use of available power and allows converter to operate on 120-volt AC 15-amp branch circuits, leaving plenty of power for running other 120-volt AC accessories. TempAssure capable with Parallax Power Supplys patented TempAssure module #77639 (4400TAU) sold separately. TempAssure capable with TempAssure module #77639 (4400TAU), sold separately 11-position fuse block with blown fuse indicators Durable steel enclosure | Parallax Group Inc Parallax Power 8300 Series 30 Amp Service Power Centers - 55 Amp