Low Voltage Dry Type Non-Ventilated Transformers Low Voltage Dry Type Non-Ventilated Transformers Totally Enclosed, Non-Ventilated (TENV)TENV transformers are recommended where dust, dirt, or lint may be present or where transformers are subject to sprays or controlled wash-down conditions. Product Selector Publications Application and TechnicalBrochures Other Transformers - Low Voltage Dry Type Low Voltage Dry Type, Encapsulated, Enclosed Transformers Low Voltage Dry Type Vented Transformers Low Voltage Dry Type Non-Ventilated Transformers Control Power & Machine Tool Encapsulated, Core & Coil Transformers