Electrical Box Box Type Switch Number of Gangs 1 Bracket Type Ears Old Work Capacity 12.5 cu in Material Steel Number of 1/2 in Back Knockouts 1 Number of 1/2 in Side Knockouts 0 Clamp Type NM-B Nominal Depth 2 1/2 in Nominal Length 3 in Nominal Width 2 in Color Silver Standards File E195978 UL 514-A Listed