"The new patent-pending Cutler-Hammer® plug-on neutral arc-fault circuit interrupter (AFCI) and ground-fault circuit interrupter (GFCI) reduces installation time by eliminating the extra step of wiring the neutral of the breaker to the neutral bar. This is accomplished by the addition of a metal stab on the breaker that clips on to an inboard neutral bar of the loadcenter. "
Yep…been around for quite some time now. In fact, they had them back when I was doing the ECCN Program for them. They do indeed make it a nice and clean install.