Homeline 20 Amp Single Pole Dual Function (CAFCI and GFCI) Circuit Breaker (9 Pack) Formica 625 Left Inner Bowl Front Item Weight:.625 625 Left Inner Bowl Front to Back Width (in Combine multiple mats to fit your desired heated area up to 320 sq Specification Details Series Homeline Breaker Type Standard Function Dual Function CAFCI GFCI Interruption Type AFCI GFCI Maximum Amperage 20 A Poles Single Pole Number of Spaces Required 1 per breaker (9 total for pack) AIC Rating 10000 AIR Voltage 120 240 V AC Mounting Type Plug On Trip Unit Electronic Connection Type Non Neutral Certifications UL Listed A: It is designed for Square D Homeline load centers and CSEDs