I want to add GFCI to a pool light circuit. I traced the circuit to a
Square D XO subpanel. The XO series breaker box is obsolete and the only
breakers I can find are regular used ones (no GFCI breakers for XO). It
would be a huge job to replace the entire subpanel just for this circuit,
because it contains a maze of other old circuits. Is there any GFCI breaker
that will plug into the XO box? Is there a GFCI device that I can connect
to the junction box in the pool equipment room? Maybe a simple one switch
circuit breaker box that can connect through a knockout.. something that
would install without turning it into a huge construction job?