NEMA Premium efficient transformers Technical Data

2022-09-06

◆Eaton's family of NEMA® Premium efficiency transformers provides 30 percent less losses than similarly sized NEMAT TP-1 efficiency models . In the United States, Department of Energy regulation 10 CFR Part 431 requires low voltage dry-type distribution transform-ers to meet NEMA TP-1 efficiency levels . Installing lower-loss NEMA Premium transformers reduces energy consumption, resulting in lower operating costs while reducing harmful emissions . Eaton® is one of the original manufacturers who supported and joined NEMA's Premium efficiency transformers program .
◆Like NEMA TP-1 efficient transformers, the recognized efficiency of NEMA Premium efficient transformers is measured at 75°C and with a linear load of 35 percent of full load rating . The table below shows the difference between the various transformer efficiency levels that have become common over the past few years .

EATON ELECTRIC

FR912BFR914DFR915DFR916AFR917FR918AFR919FR919EFR920FR920EFR923FR924FR928FR929V48M28T75N3V48M28T15N3V48M28T30N3V48M28T45N3V48M28T12N3V48M28T49N3V48M28T22N3V48M28T33N3V48M28F15N3V48M28F30N3V48M28F45N3V48M28F75N3V48M28F12N3V48M28F49N3V48M28F22N3V48M28F33N3V48M28B15N3V48M28B30N3V48M28B45N3V48M28B75N3V48M28B12N3V48M28B49N3V48M28B22N3V48M28T15CUN3V48M28T30CUN3V48M28T45CUN3V48M28T75CUN3V48M28T12CUN3V48M28T49CUN3V48M28T22CUN3V48M28T33CUN3V48M28F15CUN3V48M28F30CUN3V48M28F45CUN3V48M28F75CUN3V48M28F12CUN3V48M28F49CUN3V48M28F22CUN3V48M28F33CUN3V48M28B15CUN3V48M28B30CUN3V48M28B45CUN3V48M28B75CUN3V48M28B12CUN3V48M28B49CUN3V48M28B22CUN3V48M28B33CUN3N48M28T15N3N48M28T30N3N48M28T45N3N48M28T75N3N48M28T12N3N48M28T49N3N48M28T22N3N48M28T33N3N48M28F15N3N48M28F30N3N48M28F45N3N48M28F75N3N48M28F12N3N48M28F49N3N48M28F22N3N48M28F33N3N48M28B15N3N48M28B30N3N48M28B45N3N48M28B75N3N48M28B12N3N48M28B49N3N48M28B22N3N48M28T15CUN3N48M28T30CUN3N48M28T45CUN3N48M28T75CUN3N48M28T12CUN3N48M28T49CUN3N48M28T22CUN3N48M28T33CUN3N48M28F15CUN3N48M28F30CUN3N48M28F45CUN3N48M28F75CUN3N48M28F12CUN3N48M28F49CUN3N48M28F22CUN3N48M28F33CUN3N48M28B15CUN3N48M28B30CUN3N48M28B45CUN3N48M28B75CUN3N48M28B12CUN3N48M28B49CUN3WS38WMB01RS1647-49323-147-49321-147-49322-147-51964-1WS39RS1747-49317-147-49315-147-49318--147-51965-1WS19RS0747-41790-147-41789-147-41791-147-51966-1WS34RS0547-44973-11714C64G011714C67H0147-51967-147-41801-147-41800-147-41802-147-41799-1WS35RS062D46331H032D46331H012D46332H012D46331H022D46331H04WS37RS0947-45927-147-45925-147-45926-1WS40RS1847-53089-247-53089-147-53088-147-53089-447-53087-1WS41RS1947-53777-147-53779-11714C67H1547-53778-1WS42RS2047-53786-147-53788-147-41802-347-53787-1

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Premium efficient transformers

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April 2013

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