General Purpose Transformer; Primary Voltage 480 Volt AC; Secondary Voltage 26.5 VOC; Frequency Rating 50/60 Hertz; Power Rating 48 Volt Amp at 24 Volt AC; Temperature Rise -20 to 105 Deg F; Enclosure Type E; Size 2-7/32 Inch Width x 2-15/16 Inch Depth; Mounting Foot; Application Residential Combustion Control System, Air Conditioner Circuit; Approval UL, CSA, NEC Class 2/3; Connection Type 12 Inch Lead Wire