Eaton’s medium-voltage motor control solutions include renewal and spare parts offerings for current Ampgard and SC9000 EP medium-voltage adjustable frequency drives, past generations ("Classic Ampgard” and SC9000) as well as legacy brands including Westinghouse and Cutler-Hammer. Our highly trained team of aftermarket engineering specialists are ready to assist complemented by a network of skilled field service engineers to provide installation and retrofit support.
Eaton’s service team is on call 24/7 every day of the year, providing unrivaled services ranging from troubleshooting to disaster recovery.
Medium voltage motor control units manufactured between 1962 and 2005 are now referred to as, “Classic Ampgard”.
Use these photos to help identify the differences between Eaton motor control equipment.
Classic Ampgard |
Years in production |
LF airbreak 25L2 200 A | 1962-1985 |
LF airbreak 50L2 200 A | 1963-1981 |
LF airbreak 50L4 400 A | 1965-1985 |
LF airbreak 50L7 700 A | 1968-1988 |
SJ vacuum SJ72V4 | 1982-2000 |
SJ vacuum SJ72V8 | 1988-2010 |
SL vacuum SL72V4 | 2000-2010 |
Ampgard |
Years in production |
SL vacuum, 400A, 7.2 kV | 2005-present |
SJ vacuum, 800A, 7.2 kV |
2005-2014 |
SJ vacuum, 300A, 15 kV |
2010-present |
SL vacuum, 800A, 7.2 kV |
2014-present |
SC9000 MV drive | 2008-2013 |
SC9000 EP MV drive | 2013-present |
Use these photos to help locate your general order number and renewal parts label on Eaton medium-voltage motor control equipment.