Wiring a GFCI breaker is a little different than a normal 2 pole breaker

Notice the 3 positions on the bottom

The GFCI breaker is unusual because of the white curly pigtail attached.

Where the heck does THAT go?

The GFCI Breaker should be in the off position before wiring it, and the all power to the sub panel terminated.  Install the load wires, line one, line two and NEUTRAL to the spaces indicated at the base of the breaker.

The curly pigtail goes to the neutral bus bar.

NOTE the LOAD NEUTRAL DOES NOT GO TO THE NEUTRAL BUS BAR BUT TO THE POSITION LABLED NEUTRAL AT THE BOTTOM OF THE BREAKER!!!

If you locate the load neutral to the neutral bus bar, the breaker will trip immediately upon energizing!

This information is provided for you to use at your own risk!