Plug In Circuit Breaker, Amps 20, Number of Poles 2, Circuit Breaker Type High Intensity Discharge, AC Voltage Rating 120/240VAC, For Use With QO Load Centers and NQOD Panelboards, Series QO, Terminal Connection Screw Clamp, Min. Wire Size 14 AWG, Max. Wire Size 8 AWG, Length 3.00", Width 1.5", Depth 2.91", Standards UL, CSA, AIR @ 120VAC 10kA, AIR @ 240VAC 10kA, AIR @ 48VDC 5kAWARNING: California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.