The 12.8-4 from Bel Fuse is a Stepdown Multi-Tapped Power Isolation Transformer that has been conservatively designed to provide a wide variety of outputs for powering rectifying circuits and general-purpose applications. It has a primary voltage of 115 V, a secondary voltage of 12.8 V (series configuration) and 6.4 V (parallel configuration), and a power rating of 51.2 VA. This power transformer has a dielectric strength of 1500 Vrms and offers dual center-tapped secondary windings that may be connected in series or parallel. It includes a Class B insulation system and can operate up to 130°C. This RoHS-compliant power transformer is available in a chassis-mount package that measures 76.2 x 63.5 x 63.5 mm.