We installed a then "State of the Art" electronic circuit breaker and programmable electrical control system introduced by Vertical Power. Our VP-200 was the first version which included a panel-mounted screen plus a switch panel just beneath that. Those controls were wired to a box behind the panel which housed the electronics to perform the wizardry of resettable circuit breakers, measuring current flow in any circuit, activating alarms for out-of-spec parameters, and programming a number of functions which would then perform "normal" cockpit duties for the pilot automatically depending on speed and altitude of the aircraft. Totally amazing.