With Energy Efficient Transformers minimum efficiencies have been established for each size of transformer, and extensive design, testing, and manufacturing time has been spent to ensure each transformer meets or exceeds these efficiencies. The Square D Energy Efficient transformer offering includes all of the popular options including low temperature rise, 115 °C and 80 °C, and aluminum or copper windings. These transformers are part of a complete line of Lean Power products from Schneider Electric. Our power conservation, management and monitoring products, systems, and services help to reduce energy consumption in business and industry environments. This Energy Efficient Transformer is a 1 phase, 37.5 kVA, that has a primary Voltage of 240 x 480V and a secondary voltage of 120/240V. The Enclosure has a NEMA 2 rating and has a box number of 18H with a insulation temperature of 220 °C. This unit has 6 taps and with FCAN & FCBN tap off of 2.5 % 2+ 4-. The unit is made of aluminium with a 150 °C temperature rise.