Replacing GTE Sylvania Breakers!? | Mike Holt's Forum
Apr 11, 2005· When Cutler-Hammer purchased the Westinghouse distribution line the merged the two lines together but use the Bryant catalog numbers. The old Sylvania/Challanger numbers are still printed on the breakers so they can be used in older panels. The HAGF you read was correct and represents a GFCI breaker. HAGF20 = is a single pole 20 amp GFCI breaker.