Foster Transformer says its new lineup of high efficiency isolation transformers provide a higher degree of isolation (as measured by leakage current to ground), improved efficiency, and reduced size and weight, which yield lower operating costs. After two years of development to optimize performance while minimizing size, these transformers are up to 25% lighter than previous generations while offering full load operating efficiencies of 97% to 99%. More than 250 models are available covering input voltage ranging from 120V through 600V, and secondary voltages of 120, 208, 240, or 277V. The high-efficiency, isolation transformers are ideal for a wide range of commercial and industrial applications.