SolaHD Control Transformer, Encapsulated, Series: SBE, 240/480 V AC Primary, 120 VAC Secondary, 0.25 kVA Power, 50/60 Hz Frequency, 1 ph, Wire Lead Connection, Surface Mounting, 105 deg C Insulation, IP20 Enclosure, 131 deg F, 4.79 in L x 4.5 in W x 3.89 in H Dimensions