24VCT Transformer 4 Amp, 96 Watt- 120/220 VAC Input: 110/220VAC 60HzPrimary Connections 120 VAC:Connect the 2 black wires together and connect the 2 red wires together and apply power to each pair.Primary Connections 220 VAC:Connect the inner black & red wires together and apply power to the outer black & red wiresSecondary Connections: Blue Wires:24 VAC, Center-tap: YellowRated Current: 4 amps output.Chassis mount transformer with 6 wire leads for connections.Dimensions: (L) 2-5/8″ (3-15/16″ with mount flanges) x (W) 3″ x (H) 2-3/8″OkuraLP-580LP580MPJA27845 TR