Schneider Electric 75T3H Insulated Transformer

Schneider Electric's Square D 75T3H is a 75 kVA three-phase dry-type insulated transformer with a 480V delta primary and a 208Y/120V secondary, designed to step down high-voltage distribution for 120/208V equipment in industrial and commercial facilities. At full rated load, it can deliver roughly 208 A on the 208Y/120V secondary and draws about 90 A on the 480V primary, enabling balanced three-phase distribution to motors, controls, lighting, and auxiliary equipment. The 75T3H family is associated with DOE 2016 energy-efficiency standards as part of Square D's energy-efficient transformer lineup, delivering reliable performance in a compact footprint suitable for indoor cabinets or outdoor installations depending on enclosure variant. Available enclosure options in the 75T3H family include non-ventilated indoor units and outdoor-rated Type 3R configurations, giving flexibility for site conditions while preserving the 75 kVA rating. Typical applications include powering 120/208V subcircuits from a 480V three-phase supply in manufacturing, processing plants, and facilities infrastructure, such as panelboards, drives, pumps, and machine controls, where a robust, balanced 3-phase step-down transformer is required.