General purpose transformer. For installation in indoor locations with a clean, dust free and chemical free air circulation. Provides a degree of protection against incidental contact by non-authorized personnel. Does not require fireproof vaults or special installations. Lightweight with no liquids to inspect. May be installed close to the load to reduce wiring runs. Used to change supply voltages to voltages required by lighting and various types of equipment. Commonly used for inductive and resistive loads such as motors and heating.