Triad control transformers come with tamper resistant shrouds for safety and a steel bracket welded to the bottom of the transformer for ease of mounting. These transformers are designed with dual bobbin construction and insulated shrouds on the primary and secondary sides. Welded laminations have holes in each corner to allow direct mounting to a panel. Since these products are inherently energy limited, no secondary fusing is required. Applications include commercial dryers, deep fryers, greenhouse controls, home environmental systems, security systems, video games, automatic doors, solar heating units and industrial controls.