The blue wire
is the pilot signal, there is no proximity wire entering the enclosure.
The relay is a DPST Tyco T92P7A22-240 with a 240 vac coil.
The small wires are attached to a male spade lug connector which is part of the main power female connectors.
What I really found interesting was the daughter-board attached to J7, which seems to be a way of passing a controlled current on the protected side of the GFCI coil.