Check the listing for details. 500VA 20V 25A / 40V CT DIY Servo Motor Power Transformer Antek p/n AN-5220. Listed at 94.00 USD. The Antek 500VA heavy duty toroidal power transformers have 2 individual outputs of 20Vac at 12.5A each or connect in series for 40Vac. It operates at continuous duty for stepper or servo motors. They are specially designed to work on all standard 115V or 230V at 50Hz or 60Hz. These transformers have heavier gauge wires than the normal requirement to avoid the copper lost during the full power output. The dielectric test is more than 3500V in between primary and secondary coils. In most of the cases, this transformer can be output 20% more power from its rating at 60Hz power source without any problem. This transformer comes with 2 rubber pads and all mounting hardware. AN-5220 Product Brief Weight: 11.0lbDimensions: 5.5" d x 2.9" h Electrical Characteristics Outputs 2x Power 500VA Output VoltageCurrent 20V 6.1A 20V 6.1A