Cutler Hammer Single Pole AFCI Circuit Breaker, CHFCAF120 Eaton ch series single-pole fire-guard combination afci breaker, 3/4 in. , 120/240 vac, 20 amps| plug-in circuit breaker / 3/4 / 10ka interrupting rating /120/240vac / wire range #14 - 8 awg