This is the power supply for the panels. The power supply plugs in to a 110 outlet and the individual wires to the panel are connected to the terminal blocks inside the cover.

There is a power switch on the power supply and a fuse.

Each Panel is wired to this central power supply.

The power requirements  for the power supply are 110 VAC 50/60 CYC, 2 amps.

Mean time between failure is rated at 15,000 power on hours.