Connecticut Electric Q50 Connecticut Ubiz50 Type Ubiz Thick Circuit Breaker, 120/240 V, 50 A, 1 P, 10 Ka, amp Replacement Zinsco circuit breaker manufactured new by Connecticut Electric For use in Zinsco circuit breaker panels Intertek ETL Listing to UL Standard 489 for US and Canada-Molded case circuit breakers 10,000 AIC 50 Amp 120 VAC 1 Pole breaker in 3/4"body Plug in type May also be branded as Sylvania (ie, Sylvania Q50)