This is an arc fault breaker. Q line circuit breakers are one-inch wide per pole, compact, thermal-magnetic devices designed for residential and commercial applications. The QL breakers are plug-in versions of the Q Line used for connection to load centers and lighting panels. All Q Line circuit breakers feature Quick-make / Quick-break mechanisms, common trip bars, and easy to spot trip indication to ensure safety and reliability. Specification Sheets & Brochures GE Load Center and Circuit Breaker Buy Log Specifications Category Arc Fault Feeder Plug In Frame Type Q-Line Amperage 20A System Voltage 120/240 VAC Poles 1 120 VAC Interrupting Rating 10 kAIC 120/240 VAC Interrupting Rating 10 kAIC UPC 78316465281 Width 1 in. Part Number THQL1120AF2