Schneider Electric Square D 45T3H Transformer

Schneider Electric Square D 45T3H dry‑type transformer delivers 45 kVA of three‑phase power conversion with a 480 V primary (delta) and a 208Y/120 V secondary, ideal for stepping down a 480 V industrial supply to 120 V control and lighting circuits. The unit is listed in the EXN45T3H family as DOE 2016 compliant and rated for a 150°C rise, supporting reliable operation in demanding environments. It includes 2+4 primary taps to accommodate voltage variations under load and an impedance of about 6.2%, providing predictable voltage regulation across a typical load range. Weighing roughly 330 pounds, the transformer is designed for compact installation in electrical rooms or on equipment skids, aligning with Square D’s low‑voltage distribution offerings. Common applications include powering 120 V control gear and auxiliary circuits from a 480 V source in industrial settings, machine tools, and manufacturing equipment, where a proven, maintenance‑friendly dry‑type solution is preferred for safety, durability, and compatibility with Square D panelboards and distribution gear.