The Eaton C0250E2AFB Cutler Hammer- 240/480-120V 250VA Transformer is a power transformer that is designed to provide power to devices that require 240V or 480V AC power. This transformer is made from high-quality materials and is designed to last for years. The Eaton C0250E2AFB Cutler Hammer- 240/480-120V 250VA Transformer is a power transformer that is designed to provide power to devices that require 240V or 480V AC power. This transformer is made from high-quality materials and is designed to last for years.