A dry type non-ventilated transformer is desirable for applications where airborne contaminants or particles are present, where a transformer is subject to spray from any direction, or where dust conditions are extreme. Their compact size permits installations near the load being supplied. This unit is a 15kVA, 480V primary (three wire), 208Y/120V secondary (four wire) with aluminum windings and a 115 degree C termperature rise. This general purpose dry type transformer is for use in indoor installations and is wall mounted. All general purpose transformers are manufactured and tested to meet or exceed IEEE, NEMA and ANSI standards.