Sockets
The top has 3 inlet/outlet sockets. Each socket can be specified with either a Nema (USA) electrical power socket or a TUF (Twin Usb Fast charge). The Nema socket is rated at 15A in line with UL962A. The rating is the same whether 2 or 3 sockets are specified. The TUF charger is currently rated at 2.3A max combined across the 2 USB ports.