Triad toroidal chassis mount World Series transformers from Triad Magnetics are designed to meet most international safety agencies. The toroidal construction inherently helps reduce stray fields, increases efficiency and minimizes size compared to traditional EI transformers. These transformers are constructed with UL approved insulation system rated for 130° C. The primary and secondary are both electrically isolated from each other and from the core itself. Toroidal chassis mount World Series transformers are available in sizes ranging from 25VA to 2.5KVA and are equipped with generous insulated leads for connections.